Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
785
FNUS55 KGGW 180644
FWFGGW
Fire Weather Planning Forecast for Northeast Montana
National Weather Service Glasgow MT
1244 AM MDT Tue Aug 18 2026
.DISCUSSION...
Isolated to widely scattered showers are again expected for
Tuesday afternoon and evening. An upper ridge pattern looks to
unfold for the second half of the week which will keep
thunderstorm chances more limited, though result in a warm up in
temperatures. Warmer temperatures with low afternoon humidity may
elevate fire weather concerns during this period should enough
wind occur.
MTZ134-182215-
Northern Valley and Northern Phillips Counties-
1244 AM MDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy (30-40 percent).
Chance of thunder...0 percent.
Max temperature.....79-84.
Min humidity........30-35 percent.
20-foot winds.......East winds up to 5 mph becoming west late in
the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent). A slight chance
of showers and thunderstorms in the evening.
Chance of thunder...20 percent.
Min temperature.....53-58.
Max humidity........82-87 percent.
20-foot winds.......South winds up to 5 mph increasing to 5 to 10
mph in the late evening and overnight.
CWR (> 0.10 inch)...10 percent.
.WEDNESDAY...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Max temperature.....84-89.
Min humidity........24-29 percent.
20-foot winds.......Southwest winds up to 5 mph becoming west 5 to
15 mph in the late morning and afternoon.
CWR (> 0.10 inch)...Zero.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. Lows in the upper 50s. Highs in the
mid 80s. Northeast winds 5 to 10 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Northeast winds 5 to 15 mph.
.SATURDAY...Partly cloudy. Lows in the upper 50s. Highs in the
mid 80s. Southeast winds 15 to 25 mph.
.SUNDAY...Partly cloudy. A chance of showers and a slight chance
of thunderstorms. Lows around 60. Highs in the mid 80s.
.MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s.
$$
MTZ135-182215-
The Little Rockies-
1244 AM MDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy (40-50 percent). A slight chance
of showers and thunderstorms in the afternoon.
Chance of thunder...20 percent.
Max temperature.....82-87 valleys and 72-77 ridges.
Min humidity........28-33 percent valleys and 37-42 percent ridges.
20-foot winds.......
Lower elevation......Upslope/upvalley 1-3 mph becoming
upslope/upvalley 4-8 mph late in the
afternoon.
Ridge............Northwest winds up to 5 mph becoming southeast
late in the morning, then becoming south early
in the afternoon becoming west late in the
afternoon.
CWR (> 0.10 inch)...10 percent.
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent). A slight chance
of showers and thunderstorms in the evening.
Chance of thunder...20 percent.
Min temperature.....57-62.
Max humidity........58-63 percent.
20-foot winds.......
Lower elevation......Downslope/downvalley 2-5 mph.
Ridge............Southwest winds 5 to 10 mph becoming west
early in the morning.
CWR (> 0.10 inch)...10 percent.
.WEDNESDAY...
Sky/weather.........Partly cloudy (25-35 percent).
Chance of thunder...0 percent.
Max temperature.....86-91 valleys and 76-81 ridges.
Min humidity........24-29 percent.
20-foot winds.......
Lower elevation......West winds 5 to 15 mph.
Ridge............West winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.
.Forecast days 3 through 7......
.THURSDAY...Mostly clear. Lows in the lower 60s. Highs in the mid
80s. North winds 5 to 10 mph.
.FRIDAY...Mostly clear. Lows around 60. Highs in the lower 80s.
East winds 5 to 15 mph.
.SATURDAY...Partly cloudy. Lows in the lower 60s. Highs in the
mid 80s. Southeast winds 10 to 15 mph.
.SUNDAY...Partly cloudy. A chance of showers and a slight chance
of thunderstorms. Lows in the lower 60s. Highs in the lower 80s.
.MONDAY...Mostly clear. Lows around 60. Highs in the lower 80s.
$$
MTZ136-182215-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
1244 AM MDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy (30-40 percent). A slight chance
of showers and thunderstorms in the afternoon.
Chance of thunder...20 percent.
Max temperature.....80-85.
Min humidity........32-37 percent.
20-foot winds.......
Lower elevation......Upslope/upvalley 1-3 mph becoming
upslope/upvalley 4-8 mph late in the
afternoon.
Ridge............Southwest winds up to 5 mph becoming east in
the late morning and early afternoon, then
becoming northwest late in the afternoon.
CWR (> 0.10 inch)...10 percent.
.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent). A slight chance
of showers and thunderstorms in the evening.
Chance of thunder...20 percent.
Min temperature.....56-61.
Max humidity........72-77 percent.
20-foot winds.......
Lower elevation......Southwest winds 5 to 10 mph.
Ridge............Southwest winds 5 to 10 mph.
CWR (> 0.10 inch)...10 percent.
.WEDNESDAY...
Sky/weather.........Partly cloudy (30-40 percent).
Chance of thunder...0 percent.
Max temperature.....84-89.
Min humidity........24-29 percent.
20-foot winds.......
Lower elevation......West winds 5 to 15 mph.
Ridge............West winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.
.Forecast days 3 through 7......
.THURSDAY...Mostly clear. Lows around 60. Highs in the upper 80s.
North winds 5 to 10 mph.
.FRIDAY...Mostly clear. Lows around 60. Highs in the mid 80s.
Northeast winds 5 to 10 mph.
.SATURDAY...Partly cloudy. Lows in the lower 60s. Highs in the
upper 80s. East winds 10 to 20 mph.
.SUNDAY...Partly cloudy. A chance of showers and a slight chance
of thunderstorms. Lows in the mid 60s. Highs in the mid 80s.
.MONDAY...Partly cloudy. Lows in the lower 60s. Highs in the mid
80s.
$$
MTZ137-182215-
Southern Petroleum and Southern Garfield Counties-
1244 AM MDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy (35-45 percent). A slight chance
of showers and thunderstorms in the afternoon.
Chance of thunder...20 percent.
Max temperature.....81-86.
Min humidity........29-34 percent.
20-foot winds.......
Lower elevation......Upslope/upvalley 1-3 mph becoming
upslope/upvalley 4-8 mph late in the
afternoon.
Ridge............West winds up to 5 mph becoming northeast late
in the morning, then becoming east early in
the afternoon becoming west late in the
afternoon.
CWR (> 0.10 inch)...10 percent.
.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent) then becoming
partly cloudy (40-50 percent). A slight chance
of showers and thunderstorms in the evening.
Chance of thunder...20 percent.
Min temperature.....55-60.
Max humidity........70-75 percent.
20-foot winds.......
Lower elevation......South winds 5 to 10 mph.
Ridge............Southwest winds 5 to 10 mph.
CWR (> 0.10 inch)...10 percent.
.WEDNESDAY...
Sky/weather.........Partly cloudy (25-35 percent) then becoming
sunny (20-30 percent).
Chance of thunder...0 percent.
Max temperature.....84-89.
Min humidity........21-26 percent.
20-foot winds.......
Lower elevation......West winds 10 to 15 mph.
Ridge............Northwest winds 10 to 15 mph.
CWR (> 0.10 inch)...Zero.
.Forecast days 3 through 7......
.THURSDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 80s. West winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
80s. Northeast winds 10 to 15 mph.
.SATURDAY...Partly cloudy. Lows in the lower 60s. Highs around
90. Southeast winds 10 to 20 mph.
.SUNDAY...Partly cloudy. A chance of showers and a slight chance
of thunderstorms. Lows in the lower 60s. Highs in the upper 80s.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the
upper 80s.
$$
MTZ120-182215-
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
1244 AM MDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy (30-40 percent) then becoming
sunny (10-20 percent).
Chance of thunder...0 percent.
Max temperature.....77-82.
Min humidity........35-40 percent.
20-foot winds.......North winds up to 5 mph becoming southwest late
in the morning, then becoming west in the
afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent). A slight chance
of showers after midnight.
Chance of thunder...0 percent.
Min temperature.....53-58.
Max humidity........80-85 percent.
20-foot winds.......North winds up to 5 mph becoming southeast 5 to
10 mph in the late evening and overnight.
CWR (> 0.10 inch)...10 percent.
.WEDNESDAY...
Sky/weather.........Partly cloudy (45-55 percent).
Chance of thunder...0 percent.
Max temperature.....83-88.
Min humidity........28-33 percent.
20-foot winds.......Southwest winds 5 to 10 mph becoming west 5 to
15 mph in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.Forecast days 3 through 7......
.THURSDAY...Partly cloudy. Lows in the upper 50s. Highs in the
mid 80s. North winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. Northeast winds 5 to 15 mph.
.SATURDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 80s. East winds 10 to 20 mph.
.SUNDAY...Partly cloudy. A slight chance of showers. Lows around
60. Highs in the mid 80s.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid
80s.
$$
MTZ122-182215-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
1244 AM MDT Tue Aug 18 2026
.TODAY...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Max temperature.....78-83.
Min humidity........32-37 percent.
20-foot winds.......Southeast winds up to 5 mph becoming north late
in the morning, then becoming northwest in the
afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent). A slight chance
of showers and thunderstorms in the evening,
then a slight chance of showers after midnight.
Chance of thunder...10 percent.
Min temperature.....54-59.
Max humidity........81-86 percent.
20-foot winds.......North winds up to 5 mph becoming southeast late
in the evening, then becoming south 5 to 10 mph
after midnight.
CWR (> 0.10 inch)...10 percent.
.WEDNESDAY...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Max temperature.....84-89.
Min humidity........26-31 percent.
20-foot winds.......Southwest winds 5 to 10 mph becoming west 5 to
15 mph in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.
.Forecast days 3 through 7......
.THURSDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 80s. Northwest winds 5 to 10 mph.
.FRIDAY...Mostly clear. Lows in the upper 50s. Highs in the mid
80s. Northeast winds 5 to 10 mph.
.SATURDAY...Partly cloudy. Lows in the upper 50s. Highs in the
mid 80s. East winds 10 to 20 mph.
.SUNDAY...Partly cloudy. A chance of showers and a slight chance
of thunderstorms. Lows in the lower 60s. Highs in the upper 80s.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the
upper 80s.
$$
weather.gov/glasgow