Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
623
FNUS55 KGGW 182020
FWFGGW
Fire Weather Planning Forecast for Northeast Montana
National Weather Service Glasgow MT
220 PM MDT Mon Aug 18 2025
.DISCUSSION...
Upper ridging will lead to very hot and dry weather conditions
across the region through the middle of the week. Winds are
expected to be light enough in the presence of fairly green fuels
that critical fire conditions should be avoided. That said, these
conditions may certainly elevate fire weather concerns at times.
Cooler temperatures are expected by the end of the week as upper
ridging breaks down.
MTZ134-191030-
Northern Valley and Northern Phillips Counties-
220 PM MDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Chance of thunder...0 percent.
Min temperature.....59-64.
Max humidity........69-74 percent.
20-foot winds.......West winds up to 5 mph becoming northeast 5 to
10 mph in the late evening and early morning,
then becoming east late in the night.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY...
Sky/weather.........Sunny (10-20 percent).
Chance of thunder...0 percent.
Max temperature.....96-101.
Min humidity........19-24 percent.
20-foot winds.......Southeast winds 5 to 10 mph becoming south late
in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Chance of thunder...0 percent.
Min temperature.....63-68.
Max humidity........64-69 percent.
20-foot winds.......South winds 5 to 10 mph becoming east in the
late evening and overnight.
CWR (> 0.10 inch)...Less than 10 percent.
.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40 percent) then becoming
sunny (10-20 percent).
Chance of thunder...0 percent.
Max temperature.....94-99.
Min humidity........24-29 percent.
20-foot winds.......East winds 5 to 10 mph becoming northwest 5 to
15 mph in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. A slight chance of showers and
thunderstorms. Lows around 60. Highs in the lower 80s. North
winds 5 to 15 mph.
.FRIDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. North winds 5 to 10 mph.
.SATURDAY...Mostly clear. Lows around 50. Highs in the upper 70s.
East winds 5 to 15 mph.
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs in the lower
80s.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s.
$$
MTZ135-191030-
The Little Rockies-
220 PM MDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Chance of thunder...0 percent.
Min temperature.....63-68.
Max humidity........52-57 percent.
20-foot winds.......
Lower elevation......Downslope/downvalley 2-5 mph.
Ridge............East winds 5 to 10 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY...
Sky/weather.........Sunny (5-15 percent).
Chance of thunder...0 percent.
Max temperature.....98-103 valleys and 87-92 ridges.
Min humidity........19-24 percent.
20-foot winds.......
Lower elevation......Upslope/upvalley 2-5 mph.
Ridge............South winds 5 to 10 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY NIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Chance of thunder...0 percent.
Min temperature.....67-72 valleys and 61-66 ridges.
Max humidity........47-52 percent.
20-foot winds.......
Lower elevation......Northeast winds 5 to 10 mph until early
morning becoming downslope/downvalley 2-5
mph.
Ridge............Southwest winds up to 5 mph becoming east 5 to
10 mph in the late evening and overnight.
CWR (> 0.10 inch)...Less than 10 percent.
.WEDNESDAY...
Sky/weather.........Sunny (15-25 percent).
Chance of thunder...0 percent.
Max temperature.....93-98 valleys and 84-89 ridges.
Min humidity........25-30 percent.
20-foot winds.......
Lower elevation......Upslope/upvalley 2-5 mph.
Ridge............Northwest winds 5 to 10 mph.
CWR (> 0.10 inch)...Zero.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. A chance of showers and a slight
chance of thunderstorms. Lows in the lower 60s. Highs in the
upper 70s. North winds 5 to 10 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
70s. Northeast winds 5 to 10 mph.
.SATURDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. East winds 5 to 15 mph.
.SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the
lower 80s.
$$
MTZ136-191030-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
220 PM MDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Chance of thunder...0 percent.
Min temperature.....63-68.
Max humidity........65-70 percent.
20-foot winds.......
Lower elevation......Downslope/downvalley 2-5 mph.
Ridge............East winds 5 to 10 mph becoming southeast up
to 5 mph late in the night.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY...
Sky/weather.........Sunny (10-20 percent).
Chance of thunder...0 percent.
Max temperature.....98-103.
Min humidity........16-21 percent.
20-foot winds.......
Lower elevation......Upslope/upvalley 2-5 mph becoming
upslope/upvalley 4-8 mph late in the
afternoon.
Ridge............South winds 5 to 10 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY NIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Chance of thunder...0 percent.
Min temperature.....67-72.
Max humidity........54-59 percent.
20-foot winds.......
Lower elevation......Southeast winds 5 to 10 mph.
Ridge............Southeast winds 5 to 10 mph until early
morning.
CWR (> 0.10 inch)...Zero.
.WEDNESDAY...
Sky/weather.........Sunny (10-20 percent).
Chance of thunder...0 percent.
Max temperature.....96-101.
Min humidity........22-27 percent.
20-foot winds.......
Lower elevation......Northwest winds 5 to 15 mph.
Ridge............South winds 5 to 10 mph becoming northwest 5
to 15 mph in the afternoon.
CWR (> 0.10 inch)...Zero.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. A chance of showers and a slight
chance of thunderstorms. Lows in the mid 60s. Highs in the lower
80s. North winds 5 to 15 mph.
.FRIDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. North winds 5 to 10 mph.
.SATURDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
East winds 5 to 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid
80s.
$$
MTZ137-191030-
Southern Petroleum and Southern Garfield Counties-
220 PM MDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Chance of thunder...0 percent.
Min temperature.....61-66.
Max humidity........64-69 percent.
20-foot winds.......
Lower elevation......Downslope/downvalley 2-5 mph.
Ridge............Southeast winds 5 to 10 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY...
Sky/weather.........Sunny (5-15 percent).
Chance of thunder...0 percent.
Max temperature.....98-103.
Min humidity........12-17 percent.
20-foot winds.......
Lower elevation......Upslope/upvalley 2-5 mph.
Ridge............South winds 5 to 10 mph.
CWR (> 0.10 inch)...Zero.
.TUESDAY NIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Chance of thunder...0 percent.
Min temperature.....65-70.
Max humidity........50-55 percent.
20-foot winds.......
Lower elevation......Southeast winds 5 to 15 mph.
Ridge............Southeast winds 5 to 15 mph becoming south
early in the morning.
CWR (> 0.10 inch)...Zero.
.WEDNESDAY...
Sky/weather.........Sunny (10-20 percent).
Chance of thunder...0 percent.
Max temperature.....95-100.
Min humidity........20-25 percent.
20-foot winds.......
Lower elevation......Upslope/upvalley 5-10 mph becoming
upslope/upvalley 4-8 mph in the afternoon.
Ridge............West winds 5 to 15 mph becoming northwest 10
to 15 mph late in the afternoon.
CWR (> 0.10 inch)...Zero.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. A chance of showers. Lows in the mid
60s. Highs in the lower 80s. North winds 5 to 15 mph.
.FRIDAY...Mostly clear. A slight chance of showers. Lows in the
upper 50s. Highs in the upper 70s. Northeast winds 5 to 10 mph.
.SATURDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. East winds 5 to 10 mph.
.SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid
80s.
$$
MTZ120-191030-
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
220 PM MDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Chance of thunder...0 percent.
Min temperature.....60-65.
Max humidity........81-86 percent.
20-foot winds.......East winds 5 to 10 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY...
Sky/weather.........Sunny (15-25 percent).
Chance of thunder...0 percent.
Max temperature.....93-98.
Min humidity........27-32 percent.
20-foot winds.......Southeast winds 10 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY NIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Chance of thunder...0 percent.
Min temperature.....65-70.
Max humidity........68-73 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.WEDNESDAY...
Sky/weather.........Sunny (15-25 percent).
Chance of thunder...0 percent.
Max temperature.....96-101.
Min humidity........26-31 percent.
20-foot winds.......Southeast winds 5 to 15 mph becoming southwest
10 to 15 mph late in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. A slight chance of showers and
thunderstorms. Lows in the lower 60s. Highs around 80. North
winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. North winds 10 to 20 mph.
.SATURDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Northeast winds 5 to 15 mph.
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs in the lower
80s.
$$
MTZ122-191030-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
220 PM MDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Chance of thunder...0 percent.
Min temperature.....62-67.
Max humidity........79-84 percent.
20-foot winds.......East winds up to 5 mph becoming southeast 5 to
10 mph after midnight.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY...
Sky/weather.........Sunny (15-25 percent).
Chance of thunder...0 percent.
Max temperature.....96-101.
Min humidity........22-27 percent.
20-foot winds.......Southeast winds 10 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.TUESDAY NIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Chance of thunder...0 percent.
Min temperature.....68-73.
Max humidity........59-64 percent.
20-foot winds.......Southeast winds 10 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.WEDNESDAY...
Sky/weather.........Sunny (10-20 percent).
Chance of thunder...0 percent.
Max temperature.....100-105.
Min humidity........19-24 percent.
20-foot winds.......South winds 5 to 15 mph becoming southwest 10
to 15 mph late in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. A slight chance of showers. Lows in
the mid 60s. Highs in the mid 80s. North winds 5 to 15 mph.
.FRIDAY...Mostly clear. A slight chance of showers. Lows in the
mid 50s. Highs in the upper 70s. North winds 5 to 10 mph.
.SATURDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. Northeast winds 5 to 10 mph.
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
.MONDAY...Partly cloudy. Lows in the mid 50s. Highs in the lower
80s.
$$
weather.gov/glasgow