Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
086
FNUS55 KBOU 212000
FWFBOU
Fire Weather Forecast for Northeast and North Central Colorado
National Weather Service Denver/Boulder CO
200 PM MDT Thu Aug 21 2025
.DISCUSSION...Tonight and Friday...The hot and dry conditions
today will be replaced by somewhat cooler weather with a bump in
humidities tomorrow. A cold front will push across the plains late
tonight starting the change to a more moist and unstable weather
pattern. Showers and storms will be most numerous tomorrow
afternoon along and just east of the Front Range, where locally
heavy wetting rainfall can be expected.
LONG TERM DISCUSSION...Friday night through Tuesday...
A much cooler and wetter weather pattern will persist through this
entire period. Daily rounds of showers and storms can be expected
each afternoon and evening, with the heaviest wetting rainfalls
along and east of the Front Range, tapering off to the eastern
plains.
...Thunderstorms imply strong gusty erratic winds...
...All surface winds are 20-Foot...10-Minute averaged winds...
...CWR is Chance of Wetting Rain - 0.10 inch or more liquid...
...24 HR Trends are based on averages over the respective zone
groups and may not match the actual forecast values
shown in those groups...
COZ238-221015-
Larimer County Below 6000 Feet/Northwest Weld County-
Including Fort Collins, Hereford, Loveland, Nunn,
and West Pawnee Grasslands
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(50-60%) until 2400, then partly
cloudy(35-45%). Slight chance of thunderstorms
until 2100, then slight chance of rain showers
until 2400.
Chance of thunder...20 percent.
Min Temperature.....57-63.
24 hr trend......4-7 degrees warmer.
Max Humidity........76-86%.
24 hr trend......10-15% wetter.
20-foot winds.......North winds 7-14 mph with gusts to around 20
mph.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......8000 ft AGL until 1900, then 1500-2500 ft AGL.
Transport winds.....North 10-15 mph.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
cloudy. Slight chance of thunderstorms after
1200 until 1300, then chance of thunderstorms
until 1600, then thunderstorms likely.
Chance of thunder...60 percent.
Max Temperature.....78-84.
24 hr trend......10-15 degrees cooler.
Min Humidity........42-48%.
24 hr trend......20-25% wetter.
20-foot winds.......Northeast winds 9-15 mph with gusts to around
25 mph.
CWR.................0 percent increasing to 30 percent in the
afternoon.
15K FT MSL winds....West 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0700, then 4500-5500 ft
AGL.
Transport winds.....North around 15 mph until 1400, then northeast.
Smoke dispersal.....Poor until 1200, then fair.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of thunderstorms until
2400, then chance of rain showers and slight
chance of thunderstorms.
Chance of thunder...50 percent.
Min Temperature.....54-60.
24 hr trend......2-4 degrees cooler.
Max Humidity........97-99%.
24 hr trend......15-20% wetter.
20-foot winds.......East winds 4-12 mph. Gusts up to 20 mph in the
evening.
CWR.................30 percent.
15K FT MSL winds....North 15-25 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....East around 10 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers until
1200, then rain showers likely and chance of
thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....73-79.
24 hr trend......4-7 degrees cooler.
Min Humidity........51-59%.
24 hr trend......10-15% wetter.
20-foot winds.......Southeast winds 5-13 mph. Gusts up to 20 mph in
the afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......4000-5000 ft AGL.
Transport winds.....Southeast around 10 mph until 1100, then south.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the mid 50s. Southeast winds 4-9 mph.
.SUNDAY...Rain showers likely and chance of thunderstorms. Highs
in the upper 70s. East winds 5-12 mph.
.MONDAY...Cooler. Rain showers and chance of thunderstorms. Lows
in the mid 50s. Highs in the upper 60s. Southeast winds 6-13 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 50s. Highs in the upper 60s. Southeast winds 5-12 mph.
$$
COZ239-221015-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including Arvada, Boulder, Golden, Lakewood, and Longmont
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(50-60%) until 2400, then partly
cloudy.
Chance of thunder...0 percent.
Min Temperature.....60-64.
24 hr trend......2-4 degrees warmer.
Max Humidity........64-74%.
24 hr trend......4-7% wetter.
20-foot winds.......North winds 5-13 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......11500 ft AGL until 1900, then 1500-2500 ft AGL.
Transport winds.....North around 10 mph.
Smoke dispersal.....Fair until 2000, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(35-45%) until 1200, then mostly
cloudy. Slight chance of thunderstorms after
1200 until 1300, then chance of thunderstorms
until 1500, then thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....81-85.
24 hr trend......10-15 degrees cooler.
Min Humidity........37-47%.
24 hr trend......20-25% wetter.
20-foot winds.......North winds 4-12 mph. Gusts up to 20 mph in the
afternoon.
CWR.................0 percent increasing to 40 percent in the
afternoon.
15K FT MSL winds....West around 15 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....North around 10 mph until 0700, then light
until 0800, then north 10-15 mph.
Smoke dispersal.....Poor until 1400, then fair.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of thunderstorms until
2100, then slight chance of thunderstorms until
2400. Chance of rain showers after 2100.
Chance of thunder...40 percent.
Min Temperature.....56-60.
24 hr trend......Little change.
Max Humidity........91-100%.
24 hr trend......25-35% wetter.
20-foot winds.......Northwest winds 4-8 mph until 2400, then
northeast 4-5 mph.
CWR.................40 percent decreasing to 20 percent after
midnight.
15K FT MSL winds....North 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....North around 10 mph until 1900, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers until
1200, then chance of thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....77-81.
24 hr trend......2-4 degrees cooler.
Min Humidity........48-58%.
24 hr trend......7-10% wetter.
20-foot winds.......East winds 4-8 mph.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Light winds until 1600, then east around 10
mph.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the upper 50s. North winds 4-7 mph.
.SUNDAY...Thunderstorms likely. Highs in the upper 70s. Northeast
winds 4-7 mph.
.MONDAY...Rain showers with thunderstorms likely. Lows in the
upper 50s. Highs around 70. Northeast winds 4-7 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
mid 50s. Highs around 70. Northeast winds 4-7 mph.
$$
COZ240-221015-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Including Aurora, Brighton, City of Denver,
Denver International Airport, Highlands Ranch, Littleton,
and Parker
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(50-60%) until 2400, then partly cloudy.
Chance of thunder...0 percent.
Min Temperature.....62-66.
24 hr trend......Little change.
Max Humidity........59-69%.
24 hr trend......10-15% wetter.
20-foot winds.......East winds 7-14 mph with gusts to around 20 mph
until 2400, then west 4-13 mph.
CWR.................0 percent.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......11000 ft AGL until 1900. Below 1000 FT AGL
after 0400.
Transport winds.....East 10-15 mph until 2300. West after 0100.
Smoke dispersal.....Very good until 1900, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(30-40%) until 1200, then mostly
cloudy. Slight chance of thunderstorms after
1200 until 1300, then chance of thunderstorms
until 1600, then thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....83-87.
24 hr trend......10-15 degrees cooler.
Min Humidity........32-36%.
24 hr trend......15-20% wetter.
20-foot winds.......North winds 5-13 mph. Gusts up to 20 mph in the
afternoon.
CWR.................0 percent increasing to 40 percent in the
afternoon.
15K FT MSL winds....West 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0700, then 5000-6000 ft
AGL.
Transport winds.....North around 10 mph until 1500. Around 20 mph
after 1700.
Smoke dispersal.....Poor until 1400, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of thunderstorms until
2100, then slight chance of thunderstorms until
2400. Chance of rain showers after 2100.
Chance of thunder...50 percent.
Min Temperature.....58-62.
24 hr trend......4-7 degrees cooler.
Max Humidity........85-95%.
24 hr trend......20-25% wetter.
20-foot winds.......Northeast winds 4-12 mph. Gusts up to 20 mph in
the evening.
CWR.................40 percent decreasing to 10 percent after
midnight.
15K FT MSL winds....North 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....North 10-15 mph until 2000, then south until
2400, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers until
1200, then chance of thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....79-83.
24 hr trend......4-7 degrees cooler.
Min Humidity........42-48%.
24 hr trend......10-15% wetter.
20-foot winds.......East winds 5-13 mph. Gusts up to 20 mph in the
afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Light winds until 1100. Southeast around 10 mph
after 1300.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the upper 50s. South winds 4-9 mph.
.SUNDAY...Rain showers likely and chance of thunderstorms. Highs
in the lower 80s. Northeast winds 4-9 mph.
.MONDAY...Rain showers with thunderstorms likely. Lows in the
upper 50s. Highs in the lower 70s. East winds 4-8 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
upper 50s. Highs in the lower 70s. Southeast winds 4-8 mph.
$$
COZ241-221015-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min Temperature.....56-62.
24 hr trend......Little change.
Max Humidity........59-67%.
24 hr trend......4-7% drier.
20-foot winds.......Southeast winds 7-14 mph with gusts to around
20 mph until 2400, then southwest 5-12 mph.
CWR.................0 percent.
15K FT MSL winds....Northeast around 15 mph.
Mixing height.......9500 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....South around 15 mph until 0100, then southwest.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny until 1200, then partly
cloudy(35-45%) until 1500, then mostly
cloudy(60-65%). Slight chance of thunderstorms
after 1200 until 1300, then chance of
thunderstorms until 1600, then thunderstorms
likely.
Chance of thunder...60 percent.
Max Temperature.....81-87.
24 hr trend......7-10 degrees cooler.
Min Humidity........29-37%.
24 hr trend......10-15% wetter.
20-foot winds.......Northwest winds 4-13 mph until 1200, then
northeast 8-14 mph with gusts to around 20 mph.
CWR.................0 percent increasing to 40 percent in the
afternoon.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 6500-7500 ft
AGL.
Transport winds.....West around 10 mph until 1000, then north.
Smoke dispersal.....Poor until 1400, then fair.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms until 2400, then chance of
rain showers.
Chance of thunder...50 percent.
Min Temperature.....52-58.
24 hr trend......2-4 degrees cooler.
Max Humidity........90-100%.
24 hr trend......35-50% wetter.
20-foot winds.......Northwest winds 5-13 mph. Gusts up to 20 mph in
the evening.
CWR.................50 percent decreasing to 10 percent after
midnight.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......1500-2500 ft AGL until 0200, then Below 1000 FT
AGL until 0500, then 1000 ft AGL.
Transport winds.....North 15-20 mph until 2100, then east until
2200, then southwest until 0400, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
until 1200, then rain showers likely and chance
of thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....75-79.
24 hr trend......4-7 degrees cooler.
Min Humidity........47-57%.
24 hr trend......20-25% wetter.
20-foot winds.......East winds 4-12 mph. Gusts up to 20 mph in the
afternoon.
CWR.................10 percent increasing to 30 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Light winds until 1000, then southeast 10-15
mph.
Smoke dispersal.....Poor until 1500, then fair.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the mid 50s. South winds 6-13 mph.
.SUNDAY...Rain showers likely and chance of thunderstorms. Highs
in the upper 70s. Northeast winds 5-12 mph.
.MONDAY...Cooler. Rain showers and chance of thunderstorms. Lows
in the mid 50s. Highs in the upper 60s. Southeast winds 5-12 mph.
.TUESDAY...Rain showers and chance of thunderstorms. Lows in the
lower 50s. Highs in the mid 60s. South winds 6-13 mph.
$$
COZ242-221015-
Northeast Weld County-
Including Briggsdale, East Pawnee Grasslands, Grover,
Pawnee Buttes, Raymer, and Stoneham
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy(40-50%) until 2100, then mostly
cloudy(50-60%) until 2400, then partly
cloudy(40-50%). Slight chance of thunderstorms
until 2400.
Chance of thunder...20 percent.
Min Temperature.....57-61.
24 hr trend......Little change.
Max Humidity........82-92%.
24 hr trend......10-15% wetter.
20-foot winds.......Northeast winds 6-14 mph. Gusts up to 20 mph in
the evening.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....West around 15 mph.
Mixing height.......5000-6000 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....East around 15 mph until 2400, then northeast.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
cloudy(60-65%). Slight chance of thunderstorms
after 1200 until 1500, then chance of
thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....81-87.
24 hr trend......7-10 degrees cooler.
Min Humidity........37-43%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 10-16 mph with gusts to around
25 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4500-5500 ft
AGL.
Transport winds.....Northeast 15-20 mph.
Smoke dispersal.....Poor until 1200, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms until 2400, then chance of
rain showers and slight chance of
thunderstorms.
Chance of thunder...50 percent.
Min Temperature.....54-58.
24 hr trend......2-4 degrees cooler.
Max Humidity........100%.
24 hr trend......10-15% wetter.
20-foot winds.......Northeast winds 7-15 mph. Gusts up to 25 mph in
the evening.
CWR.................50 percent decreasing to 40 percent after
midnight.
15K FT MSL winds....North 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Northeast 10-15 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers until
1200, then chance of thunderstorms.
Chance of thunder...40 percent.
Max Temperature.....75-79.
24 hr trend......4-7 degrees cooler.
Min Humidity........52-58%.
24 hr trend......10-15% wetter.
20-foot winds.......Southeast winds 6-14 mph. Gusts up to 20 mph in
the afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......4000-5000 ft AGL.
Transport winds.....Southeast around 10 mph until 1100, then 10-15
mph.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the mid 50s. Southeast winds 6-13 mph.
.SUNDAY...Mostly cloudy. Rain showers likely and chance of
thunderstorms. Highs in the upper 70s. East winds 7-14 mph.
.MONDAY...Cooler. Rain showers likely and chance of
thunderstorms. Lows in the mid 50s. Highs in the upper 60s.
Southeast winds 8-15 mph.
.TUESDAY...Mostly cloudy. Rain showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 60s.
Southeast winds 7-14 mph.
$$
COZ243-221015-
Central and South Weld County-
Including Eaton, Fort Lupton, Greeley, and Roggen
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy(35-45%) until 2100, then mostly
cloudy(50-60%) until 2400, then partly
cloudy(30-35%). Slight chance of thunderstorms
after 1900 until 2100.
Chance of thunder...20 percent.
Min Temperature.....58-62.
24 hr trend......4-7 degrees warmer.
Max Humidity........78-88%.
24 hr trend......2-4% wetter.
20-foot winds.......Northeast winds 7-14 mph with gusts to around
20 mph until 2400, then north 5-12 mph.
CWR.................0 percent.
15K FT MSL winds....West around 15 mph.
Mixing height.......8000 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....Northeast 10-15 mph until 0200, then northwest.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(40-50%) until 1200, then mostly
cloudy. Slight chance of thunderstorms after
1300 until 1500, then chance of thunderstorms
until 1600, then thunderstorms likely.
Chance of thunder...60 percent.
Max Temperature.....84-88.
24 hr trend......7-10 degrees cooler.
Min Humidity........35-43%.
24 hr trend......15-20% wetter.
20-foot winds.......North winds 8-16 mph with gusts to around 25
mph.
CWR.................0 percent increasing to 30 percent in the
afternoon.
15K FT MSL winds....West 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5500-6500 ft
AGL.
Transport winds.....North 10-15 mph until 1300, then northeast.
Smoke dispersal.....Poor until 1300, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of thunderstorms until
2400, then slight chance of thunderstorms until
0300. Chance of rain showers after 2400.
Chance of thunder...50 percent.
Min Temperature.....56-60.
24 hr trend......2-4 degrees cooler.
Max Humidity........98-100%.
24 hr trend......15-20% wetter.
20-foot winds.......North winds 6-13 mph with gusts to around 25
mph until 2400, then east 4-8 mph.
CWR.................40 percent decreasing to 20 percent after
midnight.
15K FT MSL winds....North 15-25 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Northeast around 15 mph until 1900, then
northwest until 2000, then west until 2200,
then southeast until 2400, then east until
0500, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers until
1200, then chance of thunderstorms.
Chance of thunder...40 percent.
Max Temperature.....78-82.
24 hr trend......4-7 degrees cooler.
Min Humidity........49-59%.
24 hr trend......15-20% wetter.
20-foot winds.......East winds 5-13 mph. Gusts up to 20 mph in the
afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Light winds until 0700, then southeast 10-15
mph.
Smoke dispersal.....Poor until 1500, then fair.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the mid 50s. East winds 5-12 mph.
.SUNDAY...Mostly cloudy. Rain showers likely and chance of
thunderstorms. Highs in the lower 80s. East winds 5-12 mph.
.MONDAY...Not as warm. Rain showers and chance of thunderstorms.
Lows in the mid 50s. Highs in the lower 70s. East winds 6-13 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
mid 50s. Highs around 70. East winds 5-12 mph.
$$
COZ244-221015-
Morgan County-
Including Brush, Fort Morgan, Goodrich, and Wiggins
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy. Slight chance of thunderstorms
after 1900 until 2100, then slight chance of
rain showers until 2400.
Chance of thunder...10 percent.
Min Temperature.....58-62.
24 hr trend......Little change.
Max Humidity........75-85%.
24 hr trend......7-10% wetter.
20-foot winds.......Southeast winds 6-14 mph. Gusts up to 20 mph in
the evening.
CWR.................0 percent.
15K FT MSL winds....West around 15 mph.
Mixing height.......6500 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....Southeast around 15 mph until 0300, then south.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(35-45%) until 1500, then mostly
cloudy(60-65%). Chance of thunderstorms after
1500.
Chance of thunder...40 percent.
Max Temperature.....86-90.
24 hr trend......7-10 degrees cooler.
Min Humidity........34-40%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 7-15 mph with gusts to around
25 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....West 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 6000-7000 ft
AGL.
Transport winds.....West around 10 mph until 0800, then north until
1300, then northeast.
Smoke dispersal.....Poor until 1300, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms until 2400, then chance of
rain showers and slight chance of
thunderstorms.
Chance of thunder...50 percent.
Min Temperature.....56-60.
24 hr trend......Little change.
Max Humidity........100%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 8-16 mph. Gusts up to 25 mph in
the evening.
CWR.................50 percent decreasing to 30 percent after
midnight.
15K FT MSL winds....North 15-20 mph.
Mixing height.......1500-2500 ft AGL until 0300, then Below 1000 FT
AGL until 0400, then 1000 ft AGL.
Transport winds.....Northeast 10-15 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy(60-65%). Chance of rain showers
until 1200, then chance of thunderstorms.
Chance of thunder...40 percent.
Max Temperature.....78-82.
24 hr trend......7-10 degrees cooler.
Min Humidity........55-61%.
24 hr trend......15-20% wetter.
20-foot winds.......East winds 7-14 mph. Gusts up to 20 mph in the
afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Poor until 1500, then fair.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the upper 50s. Southeast winds 7-14 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
lower 80s. East winds 7-14 mph.
.MONDAY...Not as warm. Mostly cloudy. Chance of thunderstorms.
Lows in the mid 50s. Highs around 70. Southeast winds 8-15 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 50s. Highs in the upper 60s. Southeast winds 8-15 mph.
$$
COZ245-221015-
Central and East Adams and Arapahoe Counties-
Including Bennett, Byers, Deer Trail, and Leader
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min Temperature.....60-64.
24 hr trend......Little change.
Max Humidity........62-70%.
24 hr trend......4-7% wetter.
20-foot winds.......Southeast winds 8-15 mph until 2400, then
southwest 8-13 mph. Gusts up to 25 mph.
CWR.................0 percent.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......7500 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....South around 15 mph until 0200, then southwest.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy until 1500, then mostly cloudy.
Slight chance of thunderstorms after 1300 until
1500, then chance of thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....86-90.
24 hr trend......4-7 degrees cooler.
Min Humidity........29-33%.
24 hr trend......10-15% wetter.
20-foot winds.......Northwest winds 7-11 mph until 1200, then
northeast 8-14 mph with gusts to around 25 mph.
CWR.................0 percent increasing to 20 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 6500-7500 ft
AGL.
Transport winds.....West around 10 mph until 0900. Northeast after
1400.
Smoke dispersal.....Poor until 1400, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms until 2400, then chance of
rain showers.
Chance of thunder...50 percent.
Min Temperature.....56-60.
24 hr trend......2-4 degrees cooler.
Max Humidity........95-99%.
24 hr trend......25-35% wetter.
20-foot winds.......Northeast winds 6-14 mph. Gusts up to 25 mph in
the evening.
CWR.................60 percent decreasing to 20 percent after
midnight.
15K FT MSL winds....North around 15 mph.
Mixing height.......1500-2500 ft AGL until 0300, then Below 1000 FT
AGL until 0400, then 1000 ft AGL.
Transport winds.....North 15-20 mph until 2000, then southeast
until 2200, then south until 2400, then east.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy(60-65%). Chance of rain showers
until 1200, then chance of thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....78-82.
24 hr trend......7-10 degrees cooler.
Min Humidity........43-51%.
24 hr trend......15-20% wetter.
20-foot winds.......East winds 6-14 mph. Gusts up to 20 mph in the
afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Poor until 1500, then fair.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the upper 50s. Southeast winds 7-14 mph.
.SUNDAY...Mostly cloudy. Rain showers likely and chance of
thunderstorms. Highs in the lower 80s. East winds 7-13 mph.
.MONDAY...Not as warm. Rain showers and chance of thunderstorms.
Lows in the mid 50s. Highs in the lower 70s. Southeast winds
7-14 mph.
.TUESDAY...Rain showers likely and chance of thunderstorms. Lows
in the mid 50s. Highs in the upper 60s. Southeast winds 7-14 mph.
$$
COZ248-221015-
Logan County-
Including Crook, Merino, Sterling, and Peetz
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy(30-40%). Slight chance of
thunderstorms after 1900 until 2400.
Chance of thunder...20 percent.
Min Temperature.....58-62.
24 hr trend......Little change.
Max Humidity........78-86%.
24 hr trend......4-7% wetter.
20-foot winds.......Southeast winds 5-13 mph. Gusts up to 20 mph in
the evening.
CWR.................0 percent.
15K FT MSL winds....West 15-20 mph.
Mixing height.......6500 ft AGL until 1900. Below 1000 FT AGL after
2000.
Transport winds.....South 10-15 mph until 0400, then southwest.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy(40-50%) until 1200, then mostly
cloudy(50-60%). Slight chance of thunderstorms
after 1300.
Chance of thunder...20 percent.
Max Temperature.....84-88.
24 hr trend......7-10 degrees cooler.
Min Humidity........37-43%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 8-16 mph with gusts to around
25 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 5000-6000 ft
AGL.
Transport winds.....Northwest around 10 mph until 0800, then
northeast 15-20 mph.
Smoke dispersal.....Poor until 1200, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Thunderstorms likely until 2400,
then rain showers likely and chance of
thunderstorms.
Chance of thunder...60 percent.
Min Temperature.....55-59.
24 hr trend......2-4 degrees cooler.
Max Humidity........100%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 6-14 mph. Gusts up to 25 mph in
the evening.
CWR.................40 percent increasing to 50 percent after
midnight.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Northeast 10-15 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy(60-65%) until 1200, then partly
cloudy(40-50%). Chance of rain showers until
1200, then chance of thunderstorms.
Chance of thunder...30 percent.
Max Temperature.....76-80.
24 hr trend......7-10 degrees cooler.
Min Humidity........52-60%.
24 hr trend......10-15% wetter.
20-foot winds.......Southeast winds 5-13 mph. Gusts up to 20 mph in
the afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 20-30 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows in
the mid 50s. Southeast winds 5-12 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
upper 70s. East winds 7-14 mph.
.MONDAY...Cooler. Rain showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 60s.
Southeast winds 8-15 mph.
.TUESDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the mid
60s. Southeast winds 8-15 mph.
$$
COZ249-221015-
Washington County-
Including Akron, Cope, Last Chance, and Otis
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min Temperature.....59-63.
24 hr trend......Little change.
Max Humidity........68-78%.
24 hr trend......10-15% wetter.
20-foot winds.......South winds 7-15 mph with gusts to around 25
mph.
CWR.................0 percent.
15K FT MSL winds....North 15-20 mph.
Mixing height.......3500-4500 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....South 15-20 mph until 0400, then southwest.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny until 1200, then partly
cloudy(40-50%). Slight chance of thunderstorms
after 1500 until 1600, then chance of
thunderstorms.
Chance of thunder...30 percent.
Max Temperature.....87-91.
24 hr trend......4-7 degrees cooler.
Min Humidity........26-36%.
24 hr trend......7-10% wetter.
20-foot winds.......West winds 7-13 mph until 1200, then east 9-16
mph. Gusts up to 25 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 7500-8500 ft
AGL.
Transport winds.....Southwest 10-15 mph until 0900, then northwest
until 1100, then east until 1300, then 10-15
mph.
Smoke dispersal.....Poor until 1300, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms until 2400, then chance of
rain showers and slight chance of
thunderstorms.
Chance of thunder...50 percent.
Min Temperature.....56-60.
24 hr trend......2-4 degrees cooler.
Max Humidity........99-100%.
24 hr trend......20-25% wetter.
20-foot winds.......Northeast winds 8-16 mph with gusts to around
25 mph.
CWR.................40 percent.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Northeast 15-20 mph until 2100, then east 10-15
mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers until
1200, then chance of thunderstorms.
Chance of thunder...30 percent.
Max Temperature.....77-81.
24 hr trend......10-15 degrees cooler.
Min Humidity........50-60%.
24 hr trend......20-25% wetter.
20-foot winds.......East winds 8-16 mph with gusts to around 25
mph.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......5000-6000 ft AGL.
Transport winds.....East 10-15 mph until 1400, then southeast.
Smoke dispersal.....Poor until 1400, then good.
.SATURDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows in
the upper 50s. Southeast winds 8-15 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
lower 80s. East winds 8-15 mph.
.MONDAY...Cooler. Rain showers likely and chance of
thunderstorms. Lows in the mid 50s. Highs in the upper 60s.
Southeast winds 10-17 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 50s. Highs in the upper 60s. Southeast winds 10-17 mph.
$$
COZ250-221015-
Sedgwick County-
Including Julesburg, Ovid, and Sedgwick
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy until 2400, then mostly
cloudy(50-60%) until 0300, then partly
cloudy(40-50%).
Chance of thunder...0 percent.
Min Temperature.....59-63.
24 hr trend......Little change.
Max Humidity........78-82%.
24 hr trend......Little change.
20-foot winds.......South winds 5-13 mph. Gusts up to 20 mph in the
evening.
CWR.................0 percent.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......3000-4000 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....South 10-15 mph until 0300, then southwest.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Mostly cloudy(50-60%). Slight chance of
thunderstorms after 1300.
Chance of thunder...20 percent.
Max Temperature.....83-87.
24 hr trend......7-10 degrees cooler.
Min Humidity........42-46%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 7-15 mph with gusts to around
25 mph.
CWR.................0 percent.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 4500-5500 ft
AGL.
Transport winds.....Southwest around 10 mph until 0700, then
northeast.
Smoke dispersal.....Poor until 1400, then fair.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Thunderstorms likely until 2400,
then rain showers likely and chance of
thunderstorms.
Chance of thunder...60 percent.
Min Temperature.....56-60.
24 hr trend......Little change.
Max Humidity........100%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 6-14 mph.
CWR.................30 percent increasing to 60 percent after
midnight.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......1500-2500 ft AGL until 2400, then Below 1000 FT
AGL until 0200, then 1000 ft AGL until 0500,
then Below 1000 FT AGL.
Transport winds.....Northeast 10-15 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy(60-65%) until 1200, then partly
cloudy(40-50%). Chance of rain showers until
1200, then slight chance of thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....76-80.
24 hr trend......4-7 degrees cooler.
Min Humidity........51-57%.
24 hr trend......10-15% wetter.
20-foot winds.......East winds 5-13 mph.
CWR.................10 percent.
15K FT MSL winds....Northwest 20-30 mph.
Mixing height.......Below 1000 FT AGL until 0700, then 4500-5500 ft
AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows in
the mid 50s. Southeast winds 6-12 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
upper 70s. East winds 7-13 mph.
.MONDAY...Cooler. Mostly cloudy. Rain showers likely and chance
of thunderstorms. Lows in the lower 50s. Highs in the upper 60s.
Southeast winds 8-15 mph.
.TUESDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the mid
60s. Southeast winds 8-15 mph.
$$
COZ251-221015-
Phillips County-
Including Amherst, Haxtun, and Holyoke
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Partly cloudy.
Chance of thunder...0 percent.
Min Temperature.....57-61.
24 hr trend......Little change.
Max Humidity........79-85%.
24 hr trend......Little change.
20-foot winds.......South winds 5-13 mph. Gusts up to 20 mph in the
evening.
CWR.................0 percent.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......2500-3500 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....South around 15 mph until 0300, then southwest.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy(35-45%) until 1500, then mostly
cloudy(50-60%). Slight chance of thunderstorms
after 1500.
Chance of thunder...20 percent.
Max Temperature.....85-89.
24 hr trend......4-7 degrees cooler.
Min Humidity........38-42%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 7-15 mph with gusts to around
25 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....West 15-25 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 5000-6000 ft
AGL.
Transport winds.....Southwest around 10 mph until 0800, then north
until 1000, then northeast.
Smoke dispersal.....Poor until 1300, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Thunderstorms likely until 2400,
then rain showers likely and chance of
thunderstorms.
Chance of thunder...60 percent.
Min Temperature.....56-60.
24 hr trend......2-4 degrees cooler.
Max Humidity........100%.
24 hr trend......15-20% wetter.
20-foot winds.......Northeast winds 6-14 mph. Gusts up to 25 mph in
the evening.
CWR.................40 percent increasing to 60 percent after
midnight.
15K FT MSL winds....West 15-25 mph.
Mixing height.......1500-2500 ft AGL until 2300, then Below 1000 FT
AGL.
Transport winds.....Northeast 15-20 mph until 2300, then around 10
mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy(60-65%) until 0900, then partly
cloudy(40-50%). Slight chance of thunderstorms
until 0900. Chance of rain showers until 1200,
then slight chance of thunderstorms.
Chance of thunder...20 percent.
Max Temperature.....76-80.
24 hr trend......7-10 degrees cooler.
Min Humidity........53-59%.
24 hr trend......15-20% wetter.
20-foot winds.......East winds 6-13 mph. Gusts up to 20 mph in the
afternoon.
CWR.................10 percent.
15K FT MSL winds....Northwest 20-30 mph.
Mixing height.......Below 1000 FT AGL until 0700, then 4500-5500 ft
AGL.
Transport winds.....East around 10 mph until 1300, then southeast.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows in
the mid 50s. Southeast winds 6-10 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
upper 70s. East winds 7-14 mph.
.MONDAY...Cooler. Mostly cloudy. Chance of thunderstorms. Lows in
the lower 50s. Highs in the upper 60s. Southeast winds 8-15 mph.
.TUESDAY...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms. Lows in the lower 50s. Highs in the mid
60s. Southeast winds 8-15 mph.
$$
COZ246-221015-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Including Agate, Hugo, Limon, and Matheson
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min Temperature.....56-62.
24 hr trend......Little change.
Max Humidity........64-74%.
24 hr trend......Little change.
20-foot winds.......South winds 7-15 mph.
CWR.................0 percent.
15K FT MSL winds....Northeast 15-20 mph.
Mixing height.......3500-4500 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....South 15-20 mph until 0500, then southwest.
Smoke dispersal.....Fair until 2000, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny until 1200, then partly
cloudy(40-50%). Slight chance of thunderstorms
after 1300 until 1600, then chance of
thunderstorms.
Chance of thunder...30 percent.
Max Temperature.....86-90.
24 hr trend......2-4 degrees cooler.
Min Humidity........24-30%.
24 hr trend......4-7% wetter.
20-foot winds.......West winds 4-13 mph until 1200, then east 8-14
mph with gusts to around 20 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......Below 1000 FT AGL until 0800, then 7500-8500 ft
AGL.
Transport winds.....Southwest 10-15 mph until 1000, then west until
1100, then northeast until 1400, then 10-15
mph.
Smoke dispersal.....Poor until 1400, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms until 2400, then chance of
rain showers.
Chance of thunder...40 percent.
Min Temperature.....55-59.
24 hr trend......2-4 degrees cooler.
Max Humidity........98-100%.
24 hr trend......25-35% wetter.
20-foot winds.......North winds 7-15 mph. Gusts up to 25 mph in the
evening.
CWR.................40 percent decreasing to 20 percent after
midnight.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Northeast 10-15 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
until 1200, then chance of thunderstorms.
Chance of thunder...40 percent.
Max Temperature.....76-80.
24 hr trend......7-10 degrees cooler.
Min Humidity........46-52%.
24 hr trend......20-25% wetter.
20-foot winds.......East winds 7-15 mph.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......5000-6000 ft AGL.
Transport winds.....East around 10 mph until 1200, then southeast.
Smoke dispersal.....Poor until 1500, then good.
.SATURDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows in
the mid 50s. Southeast winds 7-14 mph.
.SUNDAY...Mostly cloudy. Rain showers likely and chance of
thunderstorms. Highs in the lower 80s. East winds 7-14 mph.
.MONDAY...Cooler. Rain showers and chance of thunderstorms. Lows
in the mid 50s. Highs in the upper 60s. Southeast winds 8-15 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 50s. Highs in the mid 60s. Southeast winds 8-15 mph.
$$
COZ247-221015-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Including Forder, Karval, Kutch, and Punkin Center
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly clear.
Chance of thunder...0 percent.
Min Temperature.....55-59.
24 hr trend......Little change.
Max Humidity........70-80%.
24 hr trend......Little change.
20-foot winds.......Southeast winds 5-13 mph. Gusts up to 20 mph in
the evening.
CWR.................0 percent.
15K FT MSL winds....Northeast 15-25 mph.
Mixing height.......3500-4500 ft AGL until 2000, then Below 1000 FT
AGL.
Transport winds.....Southeast 10-15 mph.
Smoke dispersal.....Fair until 2000, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny until 1500, then partly
cloudy(30-40%). Slight chance of thunderstorms
after 1600.
Chance of thunder...10 percent.
Max Temperature.....88-92.
24 hr trend......Little change.
Min Humidity........20-24%.
24 hr trend......2-4% wetter.
20-foot winds.......North winds 4-9 mph until 1200, then east 7-14
mph with gusts to around 20 mph.
CWR.................0 percent.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......Below 1000 FT AGL until 0900, then 7500-8500 ft
AGL.
Transport winds.....Light winds until 1100, then east 10-15 mph.
Smoke dispersal.....Poor until 1300, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of thunderstorms until
2100, then chance of rain showers and slight
chance of thunderstorms until 2400, then slight
chance of rain showers.
Chance of thunder...30 percent.
Min Temperature.....55-59.
24 hr trend......Little change.
Max Humidity........96-99%.
24 hr trend......20-25% wetter.
20-foot winds.......Northeast winds 9-15 mph with gusts to around
25 mph.
CWR.................10 percent.
15K FT MSL winds....West around 15 mph.
Mixing height.......7500 ft AGL until 1900, then 1000-1500 ft AGL.
Transport winds.....East around 15 mph until 1900, then north until
2100, then 20-25 mph until 2400, then northeast
around 15 mph.
Smoke dispersal.....Fair until 2000, then poor.
.SATURDAY...
Sky/weather.........Mostly cloudy(50-60%) until 1200, then partly
cloudy(40-50%). Chance of thunderstorms after
1200.
Chance of thunder...30 percent.
Max Temperature.....78-82.
24 hr trend......7-10 degrees cooler.
Min Humidity........40-48%.
24 hr trend......20-25% wetter.
20-foot winds.......East winds 9-15 mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......5000-6000 ft AGL.
Transport winds.....East 10-15 mph until 1300, then southeast.
Smoke dispersal.....Poor until 1600, then fair.
.SATURDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows in
the mid 50s. Southeast winds 7-14 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
lower 80s. East winds 7-14 mph.
.MONDAY...Not as warm. Rain showers and chance of thunderstorms.
Lows in the mid 50s. Highs around 70. Southeast winds 8-15 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 50s. Highs in the mid 60s. Southeast winds 8-14 mph.
$$
COZ215-221015-
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including Estes Park, Glendevey, Laramie River Valley, Nederland,
and Red Feather Lakes
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(55-60%) until 2400, then partly
cloudy(35-45%). Slight chance of thunderstorms
until 2100, then slight chance of rain showers
until 2400.
Chance of thunder...20 percent.
Min Temperature.....51-61.
24 hr trend......Little change.
Max Humidity........64-74%.
24 hr trend......20-25% wetter.
20-foot winds.......
Valleys/lwr slopes...North winds 4-9 mph with gusts to around
20 mph until 2400, then northwest 4-8 mph.
Ridges/upr slopes....Northeast winds 4-9 mph until 2400, then
west 4-8 mph.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......2000-3000 ft AGL.
Transport winds.....Northeast around 10 mph until 0100, then
northwest until 0500, then light.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
cloudy(60-65%). Slight chance of thunderstorms
until 1200, then rain showers with
thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....69-79.
24 hr trend......7-10 degrees cooler.
Min Humidity........39-49%.
24 hr trend......20-25% wetter.
20-foot winds.......
Valleys/lwr slopes...Northeast winds 5-13 mph. Gusts up to 20
mph in the afternoon.
Ridges/upr slopes....Northeast winds 5-13 mph.
CWR.................0 percent increasing to 60 percent in the
afternoon.
15K FT MSL winds....West 15-20 mph.
Mixing height.......4000-5000 ft AGL.
Transport winds.....Light winds until 1000, then northeast around
10 mph until 1700, then east.
Smoke dispersal.....Poor.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of thunderstorms until
2100, then slight chance of thunderstorms until
0300. Chance of rain showers after 2100.
Chance of thunder...40 percent.
Min Temperature.....46-56.
24 hr trend......4-7 degrees cooler.
Max Humidity........87-97%.
24 hr trend......20-25% wetter.
20-foot winds.......
Valleys/lwr slopes...East winds 4-8 mph.
Ridges/upr slopes....East winds 4-8 mph.
CWR.................30 percent decreasing to 20 percent after
midnight.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......2000-3000 ft AGL.
Transport winds.....East around 10 mph until 2000, then southeast
until 0200, then light until 0500, then
southeast around 10 mph.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy(60-65%). Chance of rain showers
until 1200, then thunderstorms likely.
Chance of thunder...60 percent.
Max Temperature.....66-76.
24 hr trend......2-4 degrees cooler.
Min Humidity........51-61%.
24 hr trend......15-20% wetter.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 5-13 mph. Gusts up to 20
mph in the afternoon.
Ridges/upr slopes....Southeast winds 5-13 mph. Gusts up to 20
mph in the afternoon.
CWR.................20 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......5500-6500 ft AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Partly cloudy. Slight chance of thunderstorms.
Lows in the lower 50s. South winds 4-7 mph.
.SUNDAY...Thunderstorms likely. Highs in the lower 70s. East
winds 4-8 mph.
.MONDAY...Rain showers with thunderstorms likely. Lows in the
lower 50s. Highs in the lower 60s. Southeast winds 4-7 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
upper 40s. Highs in the lower 60s. Southeast winds 4-7 mph.
$$
COZ216-221015-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including Bailey, Central City, Evergreen, Georgetown,
Idaho Springs, Northern Rampart Range, Tarryall, and Westcreek
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(50-60%) until 2100, then partly
cloudy(35-45%). Slight chance of thunderstorms
until 2100.
Chance of thunder...20 percent.
Min Temperature.....52-62.
24 hr trend......Little change.
Max Humidity........53-63%.
24 hr trend......2-4% wetter.
20-foot winds.......
Valleys/lwr slopes...Northeast winds 4-9 mph until 2400, then
west 4-8 mph.
Ridges/upr slopes....East winds 5-12 mph until 2400, then west
4-9 mph.
CWR.................0 percent.
15K FT MSL winds....South around 15 mph.
Mixing height.......7500-8500 ft AGL until 2000, then 1500 ft AGL.
Transport winds.....Northeast around 10 mph until 2100, then west
until 2200, then south until 2300, then west.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny until 0900, then partly
cloudy(30-40%) until 1200, then mostly cloudy.
Chance of thunderstorms after 1200 until 1500.
Rain showers likely after 1300 until 1500, then
thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....72-82.
24 hr trend......7-10 degrees cooler.
Min Humidity........32-42%.
24 hr trend......15-20% wetter.
20-foot winds.......
Valleys/lwr slopes...Northeast winds 5-13 mph. Gusts up to 20
mph in the afternoon.
Ridges/upr slopes....Northeast winds 5-13 mph with gusts to
around 20 mph.
CWR.................0 percent increasing to 50 percent in the
afternoon.
15K FT MSL winds....West around 15 mph.
Mixing height.......4000-5000 ft AGL.
Transport winds.....West around 10 mph until 0700, then light until
1100, then north 10-15 mph.
Smoke dispersal.....Poor.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms until 2400, then chance of
rain showers.
Chance of thunder...50 percent.
Min Temperature.....47-57.
24 hr trend......4-7 degrees cooler.
Max Humidity........84-94%.
24 hr trend......35-50% wetter.
20-foot winds.......
Valleys/lwr slopes...North winds 4-8 mph with gusts to around
20 mph until 2400, then west 4-6 mph.
Ridges/upr slopes....North winds 4-8 mph with gusts to around
20 mph until 2400, then west 4-6 mph.
CWR.................40 percent decreasing to 10 percent after
midnight.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......2000-3000 ft AGL.
Transport winds.....Northeast around 10 mph until 2000, then
southeast until 2100, then southwest until
0100, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly cloudy. Chance of rain showers until
1200, then thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....68-78.
24 hr trend......Little change.
Min Humidity........46-56%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...East winds 4-9 mph. Gusts up to 20 mph in
the afternoon.
Ridges/upr slopes....East winds 5-13 mph. Gusts up to 20 mph in
the afternoon.
CWR.................10 percent increasing to 40 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......4500-5500 ft AGL.
Transport winds.....Light winds until 1200, then east around 10
mph.
Smoke dispersal.....Poor.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the lower 50s. Southwest winds 4-8 mph.
.SUNDAY...Rain showers with thunderstorms likely. Highs in the
lower 70s. Northeast winds 4-8 mph.
.MONDAY...Rain showers and chance of thunderstorms. Lows in the
lower 50s. Highs in the mid 60s. East winds 4-7 mph.
.TUESDAY...Rain showers with thunderstorms likely. Lows in the
lower 50s. Highs in the mid 60s. Southeast winds 4-7 mph.
$$
COZ211-221015-
Jackson County Below 9000 Feet-
Including Gould, North Park, Rand, Spicer, and Walden
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(60-65%) until 2100, then partly
cloudy(40-50%). Slight chance of thunderstorms
until 2100.
Chance of thunder...20 percent.
Min Temperature.....39-49.
24 hr trend......2-4 degrees warmer.
Max Humidity........81-91%.
24 hr trend......20-25% wetter.
20-foot winds.......Northeast winds 6-13 mph with gusts to around
20 mph until 2400, then southeast 4-8 mph.
CWR.................0 percent.
15K FT MSL winds....West around 15 mph.
Mixing height.......10000 ft AGL until 1900, then 1500-2500 ft AGL.
Transport winds.....Northeast 10-15 mph until 0200, then light.
Smoke dispersal.....Good until 1900, then poor.
.FRIDAY...
Sky/weather.........Mostly cloudy(60-65%). Slight chance of
thunderstorms after 1100 until 1200, then
chance of thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....76-80.
24 hr trend......4-7 degrees cooler.
Min Humidity........28-32%.
24 hr trend......10-15% wetter.
20-foot winds.......Southeast winds 4-7 mph until 1200, then north
7-13 mph with gusts to around 20 mph.
CWR.................0 percent increasing to 30 percent in the
afternoon.
15K FT MSL winds....West 15-25 mph.
Mixing height.......2000-3000 ft AGL until 1100, then 7000-8000 ft
AGL.
Transport winds.....Light winds until 1100, then northwest 10-15
mph.
Smoke dispersal.....Poor until 1200, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy(55-60%) until 2400, then partly
cloudy(30-40%). Chance of thunderstorms until
2100, then chance of rain showers until 2400,
then slight chance of rain showers.
Chance of thunder...30 percent.
Min Temperature.....37-45.
24 hr trend......2-4 degrees cooler.
Max Humidity........89-99%.
24 hr trend......Little change.
20-foot winds.......East winds 4-12 mph. Gusts up to 20 mph in the
evening.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....East around 10 mph until 2200, then southeast
until 2400, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy(35-45%) until 1200, then mostly
cloudy(60-65%). Slight chance of rain showers
until 1200, then chance of thunderstorms.
Chance of thunder...40 percent.
Max Temperature.....76-80.
24 hr trend......Little change.
Min Humidity........22-28%.
24 hr trend......4-7% drier.
20-foot winds.......South winds 4-7 mph until 1200, then northwest
8-15 mph with gusts to around 25 mph.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......2500-3500 ft AGL until 1100, then 11000-12000
ft AGL.
Transport winds.....Light winds until 1000, then southwest around
10 mph until 1200, then northwest 15-20 mph.
Smoke dispersal.....Poor until 1100. Excellent after 1500.
.SATURDAY NIGHT...Partly cloudy. Slight chance of thunderstorms.
Lows in the lower 40s. East winds 4-9 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
mid 70s. Northeast winds 5-12 mph.
.MONDAY...Thunderstorms likely. Lows in the lower 40s. Highs in
the upper 60s. South winds 4-8 mph.
.TUESDAY...Mostly cloudy. Rain showers and chance of
thunderstorms. Lows around 40. Highs in the upper 60s. South
winds 4-8 mph.
$$
COZ213-221015-
Grand and Summit Counties Below 9000 Feet-
Including Dillon, Fraser, Granby, Grand Lake,
Green Mountain Reservoir, Hot Sulphur Springs, Kremmling,
Middle Park, and Williams Fork Reservoir
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(60-65%) until 2100, then partly
cloudy(40-50%).
Chance of thunder...0 percent.
Min Temperature.....43-53.
24 hr trend......Little change.
Max Humidity........69-79%.
24 hr trend......2-4% drier.
20-foot winds.......East winds 5-13 mph.
CWR.................0 percent.
15K FT MSL winds....West around 15 mph.
Mixing height.......10500 ft AGL until 1900, then 2000-3000 ft AGL.
Transport winds.....East around 10 mph until 0200, then light.
Smoke dispersal.....Fair until 2000, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(40-50%) until 1200, then mostly
cloudy. Slight chance of thunderstorms after
1100 until 1200, then chance of thunderstorms.
Rain showers likely after 1300 until 1500.
Chance of thunder...50 percent.
Max Temperature.....75-83.
24 hr trend......7-10 degrees cooler.
Min Humidity........24-32%.
24 hr trend......10-15% wetter.
20-foot winds.......West winds 4-6 mph until 1200, then north 4-9
mph.
CWR.................0 percent increasing to 30 percent in the
afternoon.
15K FT MSL winds....West 15-20 mph.
Mixing height.......4000-5000 ft AGL until 1200, then 7500-8500 ft
AGL.
Transport winds.....Light winds until 1100, then northwest 10-15
mph until 1700, then northeast.
Smoke dispersal.....Poor until 1200, then good until 1600, then
poor.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy until 2400, then partly
cloudy(35-45%). Chance of thunderstorms until
2100, then chance of rain showers until 2400,
then slight chance of rain showers.
Chance of thunder...40 percent.
Min Temperature.....40-50.
24 hr trend......4-7 degrees cooler.
Max Humidity........85-95%.
24 hr trend......10-15% wetter.
20-foot winds.......East winds 4-9 mph.
CWR.................10 percent.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......2000-3000 ft AGL.
Transport winds.....East around 10 mph until 0200, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy(35-45%) until 1200, then mostly
cloudy. Slight chance of rain showers until
1200, then chance of thunderstorms.
Chance of thunder...40 percent.
Max Temperature.....73-83.
24 hr trend......Little change.
Min Humidity........18-28%.
24 hr trend......7-10% drier.
20-foot winds.......Southeast winds 4-6 mph until 1200, then
northwest 5-12 mph with gusts to around 20 mph.
CWR.................10 percent.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......3000-4000 ft AGL until 1100, then 11000-12000
ft AGL.
Transport winds.....Light winds until 1100, then west 10-15 mph
until 1500, then northwest around 20 mph.
Smoke dispersal.....Poor until 1100. Excellent after 1500.
.SATURDAY NIGHT...Partly cloudy. Slight chance of thunderstorms.
Lows in the mid 40s. East winds 4-7 mph.
.SUNDAY...Rain showers likely and chance of thunderstorms. Highs
in the mid 70s. West winds 4-8 mph.
.MONDAY...Rain showers with thunderstorms likely. Lows in the mid
40s. Highs in the upper 60s. Southwest winds 4-7 mph.
.TUESDAY...Rain showers and chance of thunderstorms. Lows in the
mid 40s. Highs in the mid 60s. Southwest winds 4-7 mph.
$$
COZ214-221015-
Central and Southeast Park County-
Including Eleven Mile Canyon Reservoir, Fairplay, Guffey,
Hartsel, Lake George, and South Park
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(55-60%) until 2100, then partly
cloudy(35-45%). Slight chance of thunderstorms
until 1900. Slight chance of rain showers after
1900 until 2100.
Chance of thunder...20 percent.
Min Temperature.....46-52.
24 hr trend......Little change.
Max Humidity........62-72%.
24 hr trend......4-7% drier.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 5-12 mph with gusts to
around 20 mph until 2400, then west 4-7
mph.
Ridges/upr slopes....Southeast winds 6-13 mph with gusts to
around 20 mph until 2400, then southwest
4-8 mph.
CWR.................0 percent.
15K FT MSL winds....Light and variable.
Mixing height.......8000-9000 ft AGL until 2000, then 1000 ft AGL.
Transport winds.....Southeast 10-15 mph until 0100, then light.
Smoke dispersal.....Good until 2000, then poor.
.FRIDAY...
Sky/weather.........Mostly sunny until 0900, then partly cloudy
until 1200, then mostly cloudy. Chance of
thunderstorms after 1200 until 1500, then
thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....72-80.
24 hr trend......2-4 degrees cooler.
Min Humidity........21-27%.
24 hr trend......4-7% wetter.
20-foot winds.......
Valleys/lwr slopes...West winds 4-7 mph until 1200, then east
6-12 mph with gusts to around 20 mph.
Ridges/upr slopes....West winds 4-7 mph until 1200, then east
6-10 mph with gusts to around 20 mph.
CWR.................0 percent increasing to 40 percent in the
afternoon.
15K FT MSL winds....Light and variable.
Mixing height.......2000-3000 ft AGL until 1100, then 4500-5500 ft
AGL.
Transport winds.....Light winds until 1100, then northwest around
10 mph until 1400, then northeast until 1600,
then east.
Smoke dispersal.....Poor until 1200, then fair until 1700, then
poor.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy(60-65%) until 0300, then partly
cloudy(40-50%). Chance of thunderstorms until
2100. Rain showers likely until 2400, then
slight chance of rain showers.
Chance of thunder...40 percent.
Min Temperature.....45-51.
24 hr trend......Little change.
Max Humidity........87-97%.
24 hr trend......15-20% wetter.
20-foot winds.......
Valleys/lwr slopes...East winds 4-9 mph until 2400, then
northwest 4-6 mph.
Ridges/upr slopes....East winds 4-13 mph until 2400, then
northwest 4-7 mph.
CWR.................50 percent decreasing to 10 percent after
midnight.
15K FT MSL winds....Northwest around 15 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....East 10-15 mph until 2200, then south until
0200, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
cloudy(60-65%). Slight chance of rain showers
until 1200, then rain showers with
thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....67-75.
24 hr trend......4-7 degrees cooler.
Min Humidity........36-46%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 4-12 mph. Gusts up to 20
mph in the afternoon.
Ridges/upr slopes....Southeast winds 4-12 mph. Gusts up to 20
mph in the afternoon.
CWR.................10 percent increasing to 60 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......5500-6500 ft AGL.
Transport winds.....Light winds until 1100, then west around 10 mph
until 1700, then south.
Smoke dispersal.....Poor until 1400, then fair.
.SATURDAY NIGHT...Mostly cloudy. Chance of thunderstorms. Lows in
the upper 40s. South winds 4-8 mph.
.SUNDAY...Rain showers with thunderstorms likely. Highs in the
lower 70s. South winds 4-8 mph.
.MONDAY...Rain showers and chance of thunderstorms. Lows in the
upper 40s. Highs in the mid 60s. South winds 4-7 mph.
.TUESDAY...Rain showers with thunderstorms likely. Lows in the
upper 40s. Highs in the lower 60s. South winds 4-8 mph.
$$
COZ218-221015-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
Including Cameron Pass, Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Rocky Mountain National Park,
and Willow Creek Pass
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy until 2100, then partly
cloudy(40-50%). Slight chance of thunderstorms
until 2100. Slight chance of rain showers after
2100 until 2400.
Chance of thunder...20 percent.
Min Temperature.....43-53.
24 hr trend......2-4 degrees cooler.
Max Humidity........64-74%.
24 hr trend......2-4% drier.
20-foot winds.......
Valleys/lwr slopes...East winds 5-12 mph until 2400, then
southeast 4-8 mph.
Ridges/upr slopes....East winds 6-13 mph with gusts to around
20 mph until 2400, then south 4-9 mph.
CWR.................0 percent.
15K FT MSL winds....West around 15 mph.
Mixing height.......5000-6000 ft AGL until 2000, then 1000 ft AGL.
Transport winds.....East around 10 mph until 0300, then light.
Smoke dispersal.....Poor.
.FRIDAY...
Sky/weather.........Partly cloudy(50-60%) until 0900, then mostly
cloudy. Slight chance of thunderstorms until
1200, then rain showers with thunderstorms
likely.
Chance of thunder...70 percent.
Max Temperature.....63-73.
24 hr trend......4-7 degrees cooler.
Min Humidity........32-42%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...West winds 4-7 mph until 1200, then
northeast 5-12 mph.
Ridges/upr slopes....West winds 4-8 mph until 1200, then
northeast 5-12 mph.
CWR.................0 percent increasing to 50 percent in the
afternoon.
15K FT MSL winds....West 15-25 mph.
Mixing height.......6000-7000 ft AGL.
Transport winds.....Light winds until 1100, then north around 10
mph until 1700, then northeast.
Smoke dispersal.....Poor until 1200, then fair.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy until 2400, then partly
cloudy(40-50%). Chance of thunderstorms until
2100, then slight chance of thunderstorms until
2400. Chance of rain showers after 2100.
Chance of thunder...40 percent.
Min Temperature.....39-49.
24 hr trend......4-7 degrees cooler.
Max Humidity........81-91%.
24 hr trend......35-50% wetter.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 4-9 mph.
Ridges/upr slopes....Southeast winds 4-9 mph.
CWR.................20 percent decreasing to 10 percent after
midnight.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....East around 10 mph until 2400, then southeast
until 0100, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy(50-60%) until 1200, then mostly
cloudy. Chance of rain showers until 1200, then
rain showers likely and chance of
thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....61-71.
24 hr trend......2-4 degrees cooler.
Min Humidity........32-42%.
24 hr trend......Little change.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 4-7 mph until 1200, then
north 5-12 mph with gusts to around 20
mph.
Ridges/upr slopes....Southeast winds 4-8 mph until 1200, then
north 6-13 mph with gusts to around 20
mph.
CWR.................10 percent increasing to 20 percent in the
afternoon.
15K FT MSL winds....Northwest 15-25 mph.
Mixing height.......4500-5500 ft AGL until 1200, then 10000-11000
ft AGL.
Transport winds.....Light winds until 1000, then west 10-15 mph
until 1600, then northwest.
Smoke dispersal.....Poor until 1100. Good after 1400.
.SATURDAY NIGHT...Partly cloudy. Slight chance of thunderstorms.
Lows in the mid 40s. Southeast winds 4-9 mph.
.SUNDAY...Rain showers likely and chance of thunderstorms. Highs
in the mid 60s. East winds 4-9 mph.
.MONDAY...Rain showers with thunderstorms likely. Lows in the mid
40s. Highs in the upper 50s. Southwest winds 4-8 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
lower 40s. Highs in the mid 50s. Southwest winds 4-8 mph.
$$
COZ212-221015-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-
Including Berthoud Pass, Breckenridge,
East Slopes Mosquito Range, East Slopes Southern Gore Range,
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains,
Mount Blue Sky, Puma Hills, Tarryall Mountains,
Williams Fork Mountains, and Winter Park
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(50-60%) until 2400, then partly
cloudy. Slight chance of thunderstorms until
2100.
Chance of thunder...20 percent.
Min Temperature.....44-54.
24 hr trend......Little change.
Max Humidity........54-64%.
24 hr trend......Little change.
20-foot winds.......
Valleys/lwr slopes...East winds 4-9 mph until 2400, then south
4-8 mph.
Ridges/upr slopes....Southeast winds 6-13 mph with gusts to
around 20 mph until 2400, then south.
CWR.................0 percent.
15K FT MSL winds....Southwest around 15 mph.
Mixing height.......6000-7000 ft AGL until 2000, then 1000-1500 ft
AGL.
Transport winds.....Southeast around 10 mph until 2400. Southwest
after 0500.
Smoke dispersal.....Fair until 2000, then poor.
.FRIDAY...
Sky/weather.........Partly cloudy(35-45%) until 1200, then mostly
cloudy. Slight chance of thunderstorms until
1200, then thunderstorms likely. Areas of smoke
after 1500.
Chance of thunder...70 percent.
Max Temperature.....64-74.
24 hr trend......4-7 degrees cooler.
Min Humidity........27-37%.
24 hr trend......7-10% wetter.
20-foot winds.......
Valleys/lwr slopes...West winds 4-7 mph until 1200, then
northeast 5-12 mph.
Ridges/upr slopes....West winds 4-9 mph until 1200, then north
6-12 mph.
CWR.................0 percent increasing to 50 percent in the
afternoon.
15K FT MSL winds....West around 15 mph.
Mixing height.......3000-4000 ft AGL until 1100, then 5500-6500 ft
AGL.
Transport winds.....Southwest around 10 mph until 0700, then light
until 1000, then northwest around 10 mph until
1500, then north until 1700, then east.
Smoke dispersal.....Poor until 1200, then fair.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy(60-65%) until 0300, then partly
cloudy(40-50%). Areas of smoke until 2100. Rain
showers likely and chance of thunderstorms
until 2400, then chance of rain showers.
Chance of thunder...40 percent.
Min Temperature.....39-49.
24 hr trend......4-7 degrees cooler.
Max Humidity........80-90%.
24 hr trend......20-25% wetter.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 4-8 mph until 2400, then
south 4-7 mph.
Ridges/upr slopes....Southeast winds 5-13 mph with gusts to
around 20 mph.
CWR.................40 percent decreasing to 10 percent after
midnight.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Southeast around 10 mph until 2400, then south
until 0300, then light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Partly cloudy(40-50%) until 0900, then mostly
cloudy(50-60%). Chance of rain showers until
1200, then thunderstorms likely.
Chance of thunder...70 percent.
Max Temperature.....60-70.
24 hr trend......2-4 degrees cooler.
Min Humidity........33-43%.
24 hr trend......7-10% wetter.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 4-7 mph until 1200, then
northeast 5-12 mph with gusts to around 20
mph.
Ridges/upr slopes....South winds 4-9 mph until 1200, then north
7-13 mph with gusts to around 20 mph.
CWR.................10 percent increasing to 30 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......4500-5500 ft AGL until 1200, then 9000-10000 ft
AGL.
Transport winds.....Light winds until 1000, then northwest 10-15
mph.
Smoke dispersal.....Poor until 1200, then good.
.SATURDAY NIGHT...Partly cloudy. Chance of thunderstorms. Lows in
the mid 40s. South winds 4-9 mph.
.SUNDAY...Rain showers with thunderstorms likely. Highs in the
mid 60s. Southwest winds 4-8 mph.
.MONDAY...Rain showers likely and chance of thunderstorms. Lows
in the mid 40s. Highs in the upper 50s. West winds 4-8 mph.
.TUESDAY...Thunderstorms likely. Lows in the mid 40s. Highs in
the mid 50s. West winds 4-8 mph.
$$
COZ217-221015-
West Jackson and West Grand Counties Above 9000 Feet-
Including East Slopes Park and Northern Gore Ranges, Gore Pass,
and Rabbit Ears Pass
200 PM MDT Thu Aug 21 2025
.TONIGHT...
Sky/weather.........Mostly cloudy(60-65%) until 2100, then partly
cloudy(35-45%). Slight chance of rain showers
until 2100.
Chance of thunder...0 percent.
Min Temperature.....45-53.
24 hr trend......Little change.
Max Humidity........63-73%.
24 hr trend......25-35% wetter.
20-foot winds.......
Valleys/lwr slopes...Northeast winds 6-13 mph with gusts to
around 20 mph until 2400, then southeast
4-8 mph.
Ridges/upr slopes....Northeast winds 7-14 mph with gusts to
around 20 mph until 2400, then southeast
5-12 mph.
CWR.................0 percent.
15K FT MSL winds....West around 15 mph.
Mixing height.......10000 ft AGL until 1900, then 1500-2500 ft AGL.
Transport winds.....Northeast around 10 mph until 0100, then east
until 0300, then light.
Smoke dispersal.....Fair until 2000, then poor.
.FRIDAY...
Sky/weather.........Mostly cloudy(60-65%). Slight chance of
thunderstorms after 1100 until 1200, then
chance of thunderstorms.
Chance of thunder...50 percent.
Max Temperature.....68-78.
24 hr trend......2-4 degrees cooler.
Min Humidity........27-35%.
24 hr trend......10-15% wetter.
20-foot winds.......
Valleys/lwr slopes...West winds 4-7 mph until 1200, then north
5-12 mph with gusts to around 20 mph.
Ridges/upr slopes....Northwest winds 5-13 mph. Gusts up to 20
mph in the afternoon.
CWR.................0 percent increasing to 20 percent in the
afternoon.
15K FT MSL winds....West 15-20 mph.
Mixing height.......2500-3500 ft AGL until 1100, then 7500-8500 ft
AGL.
Transport winds.....Light winds until 0800. Northwest 10-15 mph
after 1000.
Smoke dispersal.....Poor until 1100, then good.
.FRIDAY NIGHT...
Sky/weather.........Mostly cloudy(50-60%) until 2100, then partly
cloudy(35-45%). Slight chance of thunderstorms
until 2100. Chance of rain showers until 2400.
Chance of thunder...20 percent.
Min Temperature.....42-50.
24 hr trend......Little change.
Max Humidity........80-90%.
24 hr trend......25-35% wetter.
20-foot winds.......
Valleys/lwr slopes...East winds 4-12 mph.
Ridges/upr slopes....East winds 4-12 mph. Gusts up to 20 mph in
the evening.
CWR.................10 percent decreasing to 0 percent after
midnight.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......1500-2500 ft AGL.
Transport winds.....Northeast around 10 mph until 2000, then east
until 0100, then southeast until 0300, then
light.
Smoke dispersal.....Poor.
.SATURDAY...
Sky/weather.........Mostly sunny until 0900, then partly
cloudy(30-40%). Chance of thunderstorms after
1200.
Chance of thunder...30 percent.
Max Temperature.....68-78.
24 hr trend......Little change.
Min Humidity........19-25%.
24 hr trend......7-10% drier.
20-foot winds.......
Valleys/lwr slopes...Southeast winds 4-7 mph until 1200, then
northwest 6-13 mph with gusts to around 25
mph.
Ridges/upr slopes....Southeast winds 4-9 mph until 1200, then
northwest 7-14 mph with gusts to around 25
mph.
CWR.................0 percent increasing to 10 percent in the
afternoon.
15K FT MSL winds....Northwest 15-20 mph.
Mixing height.......3000-4000 ft AGL until 1100, then 10500-11500
ft AGL.
Transport winds.....Light winds until 1000, then west 10-15 mph
until 1300, then northwest around 20 mph.
Smoke dispersal.....Poor until 1100. Excellent after 1200.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. East winds
4-9 mph.
.SUNDAY...Mostly cloudy. Chance of thunderstorms. Highs in the
lower 70s. Northwest winds 4-9 mph.
.MONDAY...Thunderstorms likely. Lows in the upper 40s. Highs in
the lower 60s. Southwest winds 4-8 mph.
.TUESDAY...Mostly cloudy. Chance of thunderstorms. Lows in the
mid 40s. Highs in the lower 60s. Southwest winds 4-8 mph.
$$
.Outlook 6 to 10 Days...
Temperatures Below Normal and Precipitation Above Normal.
$$