Zone Forecast Product
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819
FPUS55 KBOU 041206
ZFPBOU

Zone Forecast Product for Northeast Colorado
National Weather Service Denver/Boulder CO
605 AM MDT Mon May 4 2026

COZ038>040-050300-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada,
Boulder, Golden, Lakewood, Longmont, Aurora, Brighton,
City of Denver, Denver International Airport, Highlands Ranch,
Littleton, and Parker
605 AM MDT Mon May 4 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TODAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms early in the afternoon. Chance of thunderstorms
late in the afternoon. Highs 68 to 74. Northwest winds 10 to
15 mph with gusts up to 25 mph. Chance of rain 40 percent.
.TONIGHT...Rain showers likely and slight chance of thunderstorms
in the evening, then rain and snow after midnight. No snow
accumulation. Lows 32 to 40. Northeast winds 10 to 15 mph with
gusts up to 20 mph.
.TUESDAY...Rain and snow. Slight chance of thunderstorms in the
afternoon. Much colder. No snow accumulation. Highs near 40.
Northeast winds 10 to 15 mph with gusts up to 20 mph.
.TUESDAY NIGHT...Rain and snow. Snow accumulation up to 3 inches
possible. Lows 26 to 32. Northeast winds 10 to 15 mph with gusts
up to 20 mph.
.WEDNESDAY...Snow showers likely and slight chance of
thunderstorms. Snow accumulation up to 3 inches possible. Highs
in the lower to mid 40s. North winds 10 to 15 mph with gusts up
to 20 mph. Chance of snow 70 percent.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 23 to 31.
Highs 63 to 69.
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
slight chance of thunderstorms. Lows 37 to 43. Chance of rain
30 percent.
.FRIDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs near 70.
.FRIDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 40 to 46.
.SATURDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs 69 to 75.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and
slight chance of thunderstorms. Lows in the lower to mid 40s.
Chance of rain 30 percent.
.SUNDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs in the mid to upper 60s.

$$

COZ041-050300-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur
605 AM MDT Mon May 4 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY AFTERNOON...

.TODAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs 65 to 71. West winds 10 to
15 mph, becoming north in the afternoon. Chance of rain
40 percent.
.TONIGHT...Showers likely and slight chance of thunderstorms in
the evening, then rain likely after midnight. Lows in the 30s.
North winds 10 to 15 mph with gusts up to 20 mph in the evening,
becoming light. Chance of rain 70 percent.
.TUESDAY...Slight chance of snow. Rain in the morning, then rain
and chance of thunderstorms in the afternoon. Much colder. No
snow accumulation. Highs in the lower 40s. East winds 10 to
15 mph with gusts up to 25 mph.
.TUESDAY NIGHT...Rain and snow. Snow accumulation up to 3 inches
possible. Lows in the mid to upper 20s. Northeast winds 10 to
15 mph with gusts up to 20 mph.
.WEDNESDAY...Snow showers and slight chance of thunderstorms.
Snow accumulation up to 3 inches possible. Highs in the mid to
upper 30s. North winds 10 to 15 mph with gusts up to 20 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of snow
showers. Lows in the lower to mid 20s.
.THURSDAY...Mostly sunny. Warmer. Highs 60 to 66.
.THURSDAY NIGHT...Partly cloudy with a 10 percent chance of
showers. Lows in the mid to upper 30s.
.FRIDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs in the mid to upper 60s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower to mid 40s.
.SATURDAY...Mostly cloudy with a 50 percent chance of
thunderstorms. Highs near 70.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and
slight chance of thunderstorms. Lows near 40. Chance of rain
40 percent.
.SUNDAY...Mostly cloudy with a 50 percent chance of
thunderstorms. Highs in the lower to mid 60s.

$$

COZ043-045-050300-
Central and South Weld County-
Central and East Adams and Arapahoe Counties-
Including Eaton, Fort Lupton, Greeley, Roggen, Bennett, Byers,
Deer Trail, and Leader
605 AM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM
MDT WEDNESDAY...

.TODAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower 70s. Northwest
winds 10 to 15 mph with gusts up to 25 mph. Chance of rain
30 percent.
.TONIGHT...Showers likely and slight chance of thunderstorms in
the evening, then rain after midnight. Lows in the 30s. Northeast
winds 10 to 15 mph with gusts up to 25 mph.
.TUESDAY...Rain and snow. Slight chance of thunderstorms in the
afternoon. Much colder. No snow accumulation. Highs in the lower
40s. East winds 10 to 15 mph with gusts up to 25 mph.
.TUESDAY NIGHT...Rain and snow. Snow accumulation up to 3 inches
possible. Lows near 30. Northeast winds 10 to 15 mph with gusts
up to 20 mph.
.WEDNESDAY...Snow and slight chance of thunderstorms. Snow
accumulation up to 3 inches possible. Highs 40 to 46. North winds
10 to 15 mph with gusts up to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 22 to 28.
Highs in the upper 60s.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Lows in the mid 30s to lower 40s. Highs
around 70.
.FRIDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows in the lower to mid 40s.
.SATURDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs in the mid 70s.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and
slight chance of thunderstorms. Lows in the lower to mid 40s.
Chance of rain 30 percent.
.SUNDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs in the mid to upper 60s.

$$

COZ042-044-050300-
Northeast Weld County-Morgan County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham,
Brush, Fort Morgan, Goodrich, and Wiggins
605 AM MDT Mon May 4 2026

.TODAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms in the afternoon. Highs in the lower to mid 70s.
Northwest winds 10 to 20 mph with gusts up to 25 mph. Chance of
rain 30 percent.
.TONIGHT...Rain showers likely and slight chance of thunderstorms
in the evening, then rain and snow after midnight. No snow
accumulation. Lows in the lower 30s. Northeast winds 10 to 15 mph
with gusts up to 25 mph.
.TUESDAY...Rain and snow. Slight chance of thunderstorms in the
afternoon. Much colder. No snow accumulation. Highs in the lower
40s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
.TUESDAY NIGHT...Rain and snow. Lows in the mid 20s to lower 30s.
Northeast winds 10 to 15 mph with gusts up to 20 mph.
.WEDNESDAY...Snow. Highs in the mid to upper 40s. North winds
10 to 15 mph with gusts up to 20 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the lower
to mid 20s. Highs near 70.
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
slight chance of thunderstorms. Lows in the mid 30s to lower 40s.
Chance of rain 30 percent.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy with a 20 percent chance
of thunderstorms. Highs near 70. Lows in the lower to mid 40s.
.SATURDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs in the lower to mid 70s.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and
slight chance of thunderstorms. Lows near 40. Chance of rain
40 percent.
.SUNDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs in the upper 60s.

$$

COZ047-050300-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Including Forder, Karval, Kutch, and Punkin Center
605 AM MDT Mon May 4 2026

.TODAY...Partly cloudy in the morning, then mostly cloudy with a
slight chance of showers in the afternoon. Highs 73 to 79.
Northwest winds 10 to 15 mph with gusts up to 20 mph. Chance of
rain 20 percent.
.TONIGHT...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms in the evening, then a chance of rain
after midnight. Lows 33 to 39. Northeast winds 10 to 20 mph with
gusts up to 30 mph. Chance of rain 50 percent.
.TUESDAY...Rain likely in the morning, then rain and slight
chance of thunderstorms in the afternoon. Much cooler. Highs in
the 40s. East winds 15 to 25 mph with gusts up to 30 mph.
.TUESDAY NIGHT...Rain and snow. Lows in the mid to upper 20s.
East winds 10 to 20 mph with gusts up to 30 mph.
.WEDNESDAY...Snow showers and slight chance of thunderstorms.
Snow accumulation up to 3 inches possible. Highs in the upper
30s. Northeast winds 10 to 20 mph with gusts up to 25 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of rain and snow
showers. Lows 20 to 26. Chance of precipitation 30 percent.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 65 to 70. Lows in
the mid to upper 30s.
.FRIDAY NIGHT...Partly cloudy. Lows near 40.
.SATURDAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs in the mid 70s.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and
slight chance of thunderstorms. Lows near 40. Chance of rain
30 percent.
.SUNDAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs in the 60s.

$$

COZ046-050300-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Including Agate, Hugo, Limon, and Matheson
605 AM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM
MDT WEDNESDAY...

.TODAY...Mostly cloudy. Slight chance of showers early in the
afternoon. Slight chance of thunderstorms late in the afternoon.
Highs in the lower to mid 70s. Northwest winds 10 to 15 mph with
gusts up to 20 mph. Chance of rain 20 percent.
.TONIGHT...Slight chance of thunderstorms. Chance of rain showers
in the evening, then rain likely after midnight. Lows in the
lower to mid 30s. Northeast winds 10 to 15 mph with gusts up to
20 mph. Chance of rain 70 percent.
.TUESDAY...Slight chance of snow. Rain in the morning, then rain
and slight chance of thunderstorms in the afternoon. Much colder.
No snow accumulation. Highs in the lower 40s. East winds 10 to
20 mph with gusts up to 30 mph.
.TUESDAY NIGHT...Rain and snow. Snow accumulation up to 3 inches
possible. Lows in the mid to upper 20s. East winds 10 to 15 mph
with gusts up to 25 mph.
.WEDNESDAY...Snow showers and slight chance of thunderstorms.
Snow accumulation up to 3 inches possible. Highs in the upper
30s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
.WEDNESDAY NIGHT...Mostly clear with a 20 percent chance of snow
showers. Lows 20 to 26.
.THURSDAY...Mostly sunny. Warmer. Highs in the mid 60s.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid to upper 30s.
.FRIDAY...Mostly sunny with a 10 percent chance of thunderstorms.
Highs in the upper 60s.
.FRIDAY NIGHT...Partly cloudy. Lows 38 to 44.
.SATURDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs in the lower 70s.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and
slight chance of thunderstorms. Lows near 40. Chance of rain
40 percent.
.SUNDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs in the mid 60s.

$$

COZ048>051-050300-
Logan County-Washington County-Sedgwick County-Phillips County-
Including Crook, Merino, Sterling, Peetz, Akron, Cope,
Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, Haxtun,
and Holyoke
605 AM MDT Mon May 4 2026

.TODAY...Partly cloudy in the morning, then mostly cloudy with a
chance of showers early in the afternoon. Mostly cloudy with a
chance of showers and slight chance of thunderstorms late in the
afternoon. Highs in the 70s. West winds 10 to 15 mph with gusts
up to 20 mph, becoming north with gusts up to 30 mph in the
afternoon. Chance of rain 30 percent.
.TONIGHT...Chance of rain showers and slight chance of
thunderstorms in the evening, then rain after midnight. Lows in
the mid 30s. Northeast winds 10 to 20 mph. Gusts up to 30 mph in
the evening.
.TUESDAY...Rain. Slight chance of snow in the morning, then a
slight chance of thunderstorms in the afternoon. Much cooler. No
snow accumulation. Highs in the lower to mid 40s. Northeast winds
10 to 15 mph with gusts up to 30 mph.
.TUESDAY NIGHT...Rain and snow. Lows in the upper 20s. Northeast
winds 10 to 15 mph with gusts up to 25 mph.
.WEDNESDAY...Snow with rain showers likely. Highs 41 to 49. North
winds 10 to 15 mph with gusts up to 25 mph.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows in the mid to
upper 20s. Highs near 70.
.THURSDAY NIGHT...Partly cloudy with a chance of showers and
slight chance of thunderstorms. Lows in the mid 30s to lower 40s.
Chance of rain 30 percent.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy with a 20 percent chance
of thunderstorms. Highs around 70. Lows in the lower 40s.
.SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a 40 percent
chance of thunderstorms. Highs in the lower 70s. Lows in the
lower 40s.
.SUNDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs in the mid 60s to lower 70s.

$$

COZ035-050300-
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including Estes Park, Glendevey, Nederland, and Red Feather Lakes
605 AM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
MDT WEDNESDAY...

.TODAY...Chance of rain and snow showers in the morning, then
rain showers likely and chance of thunderstorms in the afternoon.
No snow accumulation. Highs 56 to 66. West winds 10 to 15 mph
with gusts up to 25 mph. Chance of precipitation 60 percent.
.TONIGHT...Rain showers, chance of thunderstorms and slight
chance of snow showers in the evening, then rain and snow after
midnight. Snow accumulation up to 1 inch. Lows 28 to 34.
.TUESDAY...Snow in the morning, then snow and chance of
thunderstorms in the afternoon. Much colder. Snow accumulation of
4 to 7 inches. Highs 33 to 39. East winds 10 to 15 mph in the
afternoon.
.TUESDAY NIGHT...Snow. Snow accumulation greater than 6 inches
possible. Lows 19 to 27.
.WEDNESDAY...Snow showers likely and slight chance of
thunderstorms. Snow accumulation up to 3 inches possible. Highs
31 to 41. Chance of snow 70 percent.
.WEDNESDAY NIGHT...Mostly clear. Lows 21 to 27.
.THURSDAY...Partly cloudy with a slight chance of thunderstorms
and snow showers. Highs 50 to 60. Chance of snow 20 percent.
.THURSDAY NIGHT...Mostly cloudy with a chance of rain showers and
slight chance of thunderstorms. Lows 33 to 41. Chance of rain
40 percent.
.FRIDAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 55 to 65.
.FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 34 to 42.
.SATURDAY...Rain showers likely and chance of thunderstorms.
Highs 56 to 66. Chance of rain 60 percent.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and
slight chance of thunderstorms. Lows 31 to 41. Chance of rain
40 percent.
.SUNDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs 53 to 63.

$$

COZ036-050300-
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, and Westcreek
605 AM MDT Mon May 4 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

.TODAY...Mostly cloudy. Slight chance of rain showers in the
morning, then a chance of thunderstorms in the afternoon. Highs
58 to 68. West winds 10 to 15 mph. Chance of rain 50 percent.
.TONIGHT...Rain showers likely and slight chance of thunderstorms
in the evening, then rain likely and slight chance of snow after
midnight. No snow accumulation. Lows 30 to 38. Chance of
precipitation 70 percent.
.TUESDAY...Snow. Rain in the morning, then rain and chance of
thunderstorms in the afternoon. Colder. Snow accumulation up to
3 inches. Highs 36 to 44. Northeast winds 10 to 15 mph in the
afternoon.
.TUESDAY NIGHT...Snow and slight chance of thunderstorms. Snow
accumulation of 3 to 6 inches possible. Lows 21 to 29.
.WEDNESDAY...Snow showers and slight chance of thunderstorms.
Snow accumulation of 3 to 6 inches possible. Highs 30 to 40.
Northeast winds 10 to 15 mph with gusts up to 25 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of snow
showers. Lows 19 to 27.
.THURSDAY...Mostly sunny. Highs 53 to 63.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 32 to 40.
.FRIDAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 57 to 67.
.FRIDAY NIGHT...Partly cloudy. Lows 35 to 43.
.SATURDAY...Mostly cloudy with a 50 percent chance of
thunderstorms. Highs 59 to 69.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and
slight chance of thunderstorms. Lows 34 to 42. Chance of rain
40 percent.
.SUNDAY...Mostly cloudy with a 50 percent chance of
thunderstorms. Highs 53 to 63.

$$

COZ030-032-050300-
Jackson County Below 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
Including Gould, North Park, Rand, Spicer, Walden, Dillon,
Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling
605 AM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM
MDT WEDNESDAY...

.TODAY...Chance of rain and snow showers in the morning, then
rain showers likely and chance of thunderstorms in the afternoon.
No snow accumulation. Highs 53 to 59. West winds 10 to 15 mph in
the afternoon. Chance of precipitation 60 percent.
.TONIGHT...Rain showers likely and chance of thunderstorms in the
evening, then rain and snow after midnight. No snow accumulation.
Lows 29 to 35.
.TUESDAY...Snow. Rain likely and slight chance of thunderstorms
in the morning, then rain and chance of thunderstorms in the
afternoon. Snow accumulation up to 1 inch. Highs 40 to 48.
Northwest winds 10 to 15 mph in the afternoon.
.TUESDAY NIGHT...Snow and slight chance of thunderstorms. Colder.
Snow accumulation up to 3 inches possible. Lows 18 to 26.
.WEDNESDAY...Snow showers likely and slight chance of
thunderstorms. Highs 34 to 42. North winds 10 to 15 mph with
gusts up to 25 mph. Chance of snow 70 percent.
.WEDNESDAY NIGHT...Mostly clear. Lows 14 to 20.
.THURSDAY...Partly cloudy with a slight chance of thunderstorms
and snow showers. Highs 50 to 58. Chance of snow 20 percent.
.THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows near 30.
.FRIDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 56 to 62.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s.
.SATURDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs 56 to 62.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows near 30.
.SUNDAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 55 to 61.

$$

COZ037-050300-
Central and Southeast Park County-
Including Fairplay, Hartsel, Lake George, and South Park
605 AM MDT Mon May 4 2026

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM TUESDAY TO 3 PM
MDT WEDNESDAY...

.TODAY...Mostly cloudy. Slight chance of rain and snow showers in
the morning, then a chance of thunderstorms in the afternoon.
Highs 53 to 61. West winds 10 to 15 mph, increasing to 20 to
25 mph in the afternoon. Chance of precipitation 30 percent.
.TONIGHT...Mostly cloudy. Chance of rain showers and slight
chance of thunderstorms in the evening, then a chance of rain and
snow after midnight. Lows in the lower to mid 30s. West winds
10 to 15 mph with gusts up to 30 mph in the evening, becoming
light. Chance of precipitation 30 percent.
.TUESDAY...Chance of snow in the morning, then snow, chance of
thunderstorms and slight chance of rain in the afternoon. Little
or no snow accumulation. Highs 43 to 51. South winds 10 to 15 mph
in the afternoon.
.TUESDAY NIGHT...Snow and slight chance of thunderstorms. Lows
21 to 27.
.WEDNESDAY...Snow showers and slight chance of thunderstorms.
Snow accumulation of 3 to 6 inches possible. Highs 30 to 36.
Northeast winds 10 to 15 mph with gusts up to 25 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of snow
showers. Lows 15 to 21.
.THURSDAY...Mostly sunny. Highs 50 to 58.
.THURSDAY NIGHT...Partly cloudy. Lows 27 to 33.
.FRIDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 54 to 62.
.FRIDAY NIGHT...Partly cloudy. Lows 30 to 36.
.SATURDAY...Partly cloudy with a 40 percent chance of
thunderstorms. Highs 56 to 64.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows in the lower to mid 30s.
.SUNDAY...Partly cloudy with a chance of thunderstorms and slight
chance of snow showers. Highs 52 to 58. Chance of snow
40 percent.

$$

COZ033-050300-
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
605 AM MDT Mon May 4 2026

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 3 PM
MDT WEDNESDAY...

.TODAY...Chance of rain and snow showers in the morning, then
rain showers, snow showers likely and chance of thunderstorms in
the afternoon. Snow accumulation up to 1 inch. Highs 42 to 52.
West winds 10 to 15 mph with gusts up to 20 mph. Chance of
precipitation 70 percent.
.TONIGHT...Snow showers, rain showers and chance of thunderstorms
in the evening, then snow and rain after midnight. Snow
accumulation of 2 to 5 inches. Lows 22 to 32.
.TUESDAY...Snow. Slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon. Snow
accumulation of 6 to 9 inches. Highs 29 to 39. Northwest winds
10 to 15 mph in the afternoon.
.TUESDAY NIGHT...Snow and slight chance of thunderstorms. Colder.
Snow accumulation greater than 6 inches possible. Lows 12 to 22.
Northeast winds 10 to 15 mph with gusts up to 20 mph.
.WEDNESDAY...Snow and slight chance of thunderstorms. Snow
accumulation up to 3 inches possible. Highs 23 to 33. North winds
10 to 15 mph with gusts up to 25 mph.
.WEDNESDAY NIGHT...Mostly clear with a 10 percent chance of snow
showers. Lows 11 to 21.
.THURSDAY...Partly cloudy with a slight chance of thunderstorms
and snow showers. Highs 38 to 48. Chance of snow 20 percent.
.THURSDAY NIGHT...Mostly cloudy with a chance of snow showers,
rain showers and slight chance of thunderstorms. Lows 25 to 33.
Chance of precipitation 50 percent.
.FRIDAY...Partly cloudy with a chance of thunderstorms and slight
chance of snow showers. Highs 43 to 53. Chance of snow
40 percent.
.FRIDAY NIGHT...Mostly cloudy with a slight chance of rain and
snow showers. Lows 25 to 35. Chance of precipitation 20 percent.
.SATURDAY...Rain showers, snow showers likely and chance of
thunderstorms. Highs 44 to 54. Chance of precipitation
60 percent.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain and snow
showers. Lows 23 to 31. Chance of precipitation 50 percent.
.SUNDAY...Mostly cloudy with a chance of snow showers and
thunderstorms. Highs 43 to 53. Chance of snow 50 percent.

$$

COZ031-050300-
West Jackson and West Grand Counties Above 9000 Feet-
Including Mt Zirkel
605 AM MDT Mon May 4 2026

.TODAY...Chance of rain and snow showers in the morning, then
rain showers likely, chance of thunderstorms and snow showers
likely in the afternoon. Little or no snow accumulation. Highs
45 to 55. West winds 10 to 15 mph with gusts up to 25 mph. Chance
of precipitation 70 percent.
.TONIGHT...Rain showers, chance of thunderstorms and slight
chance of snow showers in the evening, then snow and rain after
midnight. Snow accumulation up to 3 inches. Lows 27 to 33.
Southwest winds 10 to 15 mph with gusts up to 20 mph in the
evening, becoming light.
.TUESDAY...Snow. Slight chance of thunderstorms in the morning,
then a chance of thunderstorms in the afternoon. Snow
accumulation of 3 to 5 inches. Highs 34 to 44. West winds 10 to
15 mph with gusts up to 30 mph.
.TUESDAY NIGHT...Snow and slight chance of thunderstorms. Colder.
Snow accumulation of 3 to 6 inches possible. Lows 16 to 24. North
winds 10 to 15 mph with gusts up to 30 mph.
.WEDNESDAY...Snow likely and slight chance of thunderstorms.
Highs 28 to 38. North winds 10 to 15 mph with gusts up to 35 mph.
Chance of snow 70 percent.
.WEDNESDAY NIGHT...Mostly clear. Lows 15 to 21.
.THURSDAY...Partly cloudy with a slight chance of thunderstorms
and snow showers. Highs 43 to 53. Chance of snow 20 percent.
.THURSDAY NIGHT...Mostly cloudy with a chance of rain showers,
slight chance of thunderstorms and snow showers. Lows 27 to 33.
Chance of precipitation 40 percent.
.FRIDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 49 to 59.
.FRIDAY NIGHT...Partly cloudy. Lows 29 to 35.
.SATURDAY...Partly cloudy with a chance of thunderstorms and
slight chance of snow showers. Highs 48 to 58. Chance of snow
50 percent.
.SATURDAY NIGHT...Partly cloudy with a chance of rain showers,
slight chance of thunderstorms and snow showers. Lows 27 to 33.
Chance of precipitation 30 percent.
.SUNDAY...Partly cloudy with a chance of thunderstorms and slight
chance of snow showers. Highs 48 to 58. Chance of snow
40 percent.

$$

COZ034-050300-
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, Williams Fork Mountains, and Winter Park
605 AM MDT Mon May 4 2026

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...

.TODAY...Chance of rain and snow showers in the morning, then
snow showers likely and chance of thunderstorms in the afternoon.
Snow accumulation up to 1 inch. Highs 42 to 52. West winds 10 to
15 mph with gusts up to 30 mph. Chance of precipitation
60 percent.
.TONIGHT...Snow showers, rain showers likely and slight chance of
thunderstorms in the evening, then snow likely after midnight.
Snow accumulation up to 2 inches. Lows 23 to 33. West winds 10 to
15 mph with gusts up to 25 mph in the evening, becoming light.
Chance of precipitation 60 percent.
.TUESDAY...Snow likely in the morning, then snow and chance of
thunderstorms in the afternoon. Snow accumulation of 2 to
5 inches. Highs 33 to 43. West winds 10 to 15 mph in the
afternoon.
.TUESDAY NIGHT...Snow and slight chance of thunderstorms. Snow
accumulation of 3 to 6 inches possible. Lows 15 to 25. West winds
10 to 15 mph with gusts up to 30 mph.
.WEDNESDAY...Snow showers and slight chance of thunderstorms.
Snow accumulation of 3 to 6 inches possible. Highs 23 to 33.
North winds 10 to 15 mph with gusts up to 30 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of snow
showers. Lows 11 to 21.
.THURSDAY...Mostly sunny. Highs 40 to 50.
.THURSDAY NIGHT...Partly cloudy with a slight chance of
thunderstorms and snow showers. Lows 23 to 33. Chance of snow
20 percent.
.FRIDAY...Partly cloudy with a chance of thunderstorms and snow
showers. Highs 44 to 54. Chance of snow 30 percent.
.FRIDAY NIGHT...Partly cloudy. Lows 25 to 35.
.SATURDAY...Mostly cloudy with a chance of thunderstorms and snow
showers. Highs 45 to 55. Chance of snow 50 percent.
.SATURDAY NIGHT...Partly cloudy with a chance of snow showers,
rain showers and slight chance of thunderstorms. Lows 23 to 33.
Chance of precipitation 30 percent.
.SUNDAY...Mostly cloudy with a chance of snow showers and
thunderstorms. Highs 42 to 52. Chance of snow 50 percent.

$$