Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
555
FNUS55 KGGW 181842
FWFGGW
Fire Weather Planning Forecast for Northeast Montana
National Weather Service Glasgow MT
1242 PM MDT Fri Sep 18 2026
.DISCUSSION...
A low pressure system will bring periods of rain showers and
isolated thunder across the region tonight into this weekend.
Wetting rains are most likely south of Highway 2 and the heaviest
totals in excess of an inch are possible south of Highway 200. The
cool and wet weather will ensure low fire weather concerns this
weekend. An upper ridge will lead to warmer and drier weather for
early next week.
MTZ134-191015-
Northern Valley and Northern Phillips Counties-
1242 PM MDT Fri Sep 18 2026
.TONIGHT...
Sky/weather.........Mostly cloudy (50-60 percent).
Chance of thunder...0 percent.
Min temperature.....49-54.
Max humidity........90-95 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.
.SATURDAY...
Sky/weather.........Mostly cloudy (60-70 percent). A slight chance
of showers.
Chance of thunder...0 percent.
Max temperature.....66-71.
Min humidity........49-54 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...10 percent.
.SATURDAY NIGHT...
Sky/weather.........Mostly cloudy (80-90 percent). A slight chance
of showers in the evening, then a chance of
showers after midnight.
Chance of thunder...0 percent.
Min temperature.....48-53.
Max humidity........95-100 percent.
20-foot winds.......East winds 5 to 15 mph.
CWR (> 0.10 inch)...10 percent.
.SUNDAY...
Sky/weather.........Mostly cloudy (70-80 percent). A slight chance
of showers.
Chance of thunder...0 percent.
Max temperature.....62-67.
Min humidity........65-70 percent.
20-foot winds.......East winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.Forecast days 3 through 7......
.MONDAY...Mostly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. Southeast winds 5 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. Southeast winds 5 to 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
.FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
$$
MTZ135-191015-
The Little Rockies-
1242 PM MDT Fri Sep 18 2026
.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent).
Chance of thunder...0 percent.
Min temperature.....54-59 valleys and 48-53 ridges.
Max humidity........78-83 percent.
20-foot winds.......
Lower elevation......Northeast winds 5 to 15 mph.
Ridge............Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.SATURDAY...
Sky/weather.........Cloudy (85-95 percent). A slight chance of
showers in the morning, then a chance of
showers in the afternoon.
Chance of thunder...0 percent.
Max temperature.....67-72 valleys and 57-62 ridges.
Min humidity........49-54 percent valleys and 58-63 percent ridges.
20-foot winds.......
Lower elevation......Upslope/upvalley 5-10 mph.
Ridge............Northeast winds 5 to 10 mph.
CWR (> 0.10 inch)...10 percent.
.SATURDAY NIGHT...
Sky/weather.........A chance of showers.
Chance of thunder...0 percent.
Min temperature.....52-57 valleys and 46-51 ridges.
Max humidity........91-96 percent.
20-foot winds.......
Lower elevation......East winds 5 to 10 mph.
Ridge............East winds 5 to 10 mph.
CWR (> 0.10 inch)...30 percent.
.SUNDAY...
Sky/weather.........Mostly cloudy (75-85 percent). A chance of
showers in the morning, then a slight chance of
showers in the afternoon.
Chance of thunder...0 percent.
Max temperature.....66-71 valleys and 56-61 ridges.
Min humidity........60-65 percent valleys and 71-76 percent ridges.
20-foot winds.......
Lower elevation......Upslope/upvalley 2-5 mph.
Ridge............East winds 5 to 10 mph.
CWR (> 0.10 inch)...10 percent.
.Forecast days 3 through 7......
.MONDAY...Mostly cloudy. Lows in the lower 50s. Highs in the
lower 70s. Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. South winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
70s. South winds 5 to 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s.
$$
MTZ136-191015-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
1242 PM MDT Fri Sep 18 2026
.TONIGHT...
Sky/weather.........Mostly cloudy (50-60 percent). A slight chance
of showers and thunderstorms after midnight.
Chance of thunder...20 percent.
Min temperature.....53-58.
Max humidity........87-92 percent.
20-foot winds.......
Lower elevation......Northeast winds 5 to 15 mph.
Ridge............Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...10 percent.
.SATURDAY...
Sky/weather.........A chance of showers and a slight chance of
thunderstorms.
Chance of thunder...20 percent.
Max temperature.....64-69.
Min humidity........65-70 percent.
20-foot winds.......
Lower elevation......Northeast winds 10 to 15 mph.
Ridge............Northeast winds 10 to 15 mph.
CWR (> 0.10 inch)...40 percent.
.SATURDAY NIGHT...
Sky/weather.........A chance of showers in the evening, then
showers likely after midnight.
Chance of thunder...0 percent.
Min temperature.....51-56.
Max humidity........94-99 percent.
20-foot winds.......
Lower elevation......Northeast winds 5 to 15 mph.
Ridge............Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...50 percent.
.SUNDAY...
Sky/weather.........Showers likely in the morning, then a chance of
showers in the afternoon.
Chance of thunder...0 percent.
Max temperature.....62-67.
Min humidity........72-77 percent.
20-foot winds.......
Lower elevation......East winds 5 to 15 mph.
Ridge............East winds 5 to 15 mph.
CWR (> 0.10 inch)...30 percent.
.Forecast days 3 through 7......
.MONDAY...Mostly cloudy. Lows in the lower 50s. Highs in the
lower 70s. Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. South winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the
upper 70s. South winds 5 to 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs around 80.
$$
MTZ137-191015-
Southern Petroleum and Southern Garfield Counties-
1242 PM MDT Fri Sep 18 2026
.TONIGHT...
Sky/weather.........A chance of showers and a slight chance of
thunderstorms after midnight.
Chance of thunder...20 percent.
Min temperature.....52-57.
Max humidity........93-98 percent.
20-foot winds.......
Lower elevation......North winds 5 to 15 mph.
Ridge............Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...40 percent.
.SATURDAY...
Sky/weather.........Showers likely and a slight chance of
thunderstorms in the morning, then showers and
a slight chance of thunderstorms in the
afternoon.
Chance of thunder...20 percent.
Max temperature.....61-66.
Min humidity........81-86 percent.
20-foot winds.......
Lower elevation......Northeast winds 10 to 15 mph.
Ridge............Northeast winds 10 to 15 mph.
CWR (> 0.10 inch)...80 percent.
.SATURDAY NIGHT...
Sky/weather.........Showers likely and a slight chance of
thunderstorms in the evening, then showers
after midnight.
Chance of thunder...20 percent.
Min temperature.....50-55.
Max humidity........95-100 percent.
20-foot winds.......
Lower elevation......Northeast winds 5 to 15 mph.
Ridge............Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...70 percent.
.SUNDAY...
Sky/weather.........Showers in the morning, then showers likely in
the afternoon.
Chance of thunder...0 percent.
Max temperature.....60-65.
Min humidity........79-84 percent.
20-foot winds.......
Lower elevation......East winds 5 to 15 mph.
Ridge............East winds 5 to 15 mph.
CWR (> 0.10 inch)...40 percent.
.Forecast days 3 through 7......
.MONDAY...Mostly cloudy. Lows around 50. Highs in the lower 70s.
Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows around 50. Highs in the upper 70s.
South winds 5 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. South winds 5 to 10 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs around 80.
$$
MTZ120-191015-
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
1242 PM MDT Fri Sep 18 2026
.TONIGHT...
Sky/weather.........Partly cloudy (45-55 percent) then becoming
mostly cloudy (70-80 percent). A slight chance
of showers in the evening.
Chance of thunder...0 percent.
Min temperature.....51-56.
Max humidity........95-100 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.
.SATURDAY...
Sky/weather.........Mostly cloudy (70-80 percent). A slight chance
of showers.
Chance of thunder...0 percent.
Max temperature.....64-69.
Min humidity........62-67 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...10 percent.
.SATURDAY NIGHT...
Sky/weather.........Mostly cloudy (80-90 percent). A slight chance
of showers in the evening, then a chance of
showers after midnight.
Chance of thunder...0 percent.
Min temperature.....48-53.
Max humidity........95-100 percent.
20-foot winds.......East winds 10 to 15 mph.
CWR (> 0.10 inch)...20 percent.
.SUNDAY...
Sky/weather.........Mostly cloudy (75-85 percent). A chance of
showers in the morning, then a slight chance of
showers in the afternoon.
Chance of thunder...0 percent.
Max temperature.....60-65.
Min humidity........73-78 percent.
20-foot winds.......East winds 10 to 15 mph.
CWR (> 0.10 inch)...10 percent.
.Forecast days 3 through 7......
.MONDAY...Mostly cloudy. Lows in the upper 40s. Highs in the
upper 60s. Southeast winds 10 to 20 mph.
.TUESDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
Southeast winds 10 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Southeast winds 5 to 15 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s.
$$
MTZ122-191015-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
1242 PM MDT Fri Sep 18 2026
.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent) then becoming
mostly cloudy (70-80 percent). A slight chance
of showers and thunderstorms in the evening,
then a chance of showers and a slight chance of
thunderstorms after midnight.
Chance of thunder...20 percent.
Min temperature.....53-58.
Max humidity........95-100 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...20 percent.
.SATURDAY...
Sky/weather.........A chance of showers and a slight chance of
thunderstorms.
Chance of thunder...20 percent.
Max temperature.....62-67.
Min humidity........82-87 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...60 percent.
.SATURDAY NIGHT...
Sky/weather.........Showers likely.
Chance of thunder...0 percent.
Min temperature.....49-54.
Max humidity........95-100 percent.
20-foot winds.......East winds 10 to 15 mph.
CWR (> 0.10 inch)...60 percent.
.SUNDAY...
Sky/weather.........Showers likely.
Chance of thunder...0 percent.
Max temperature.....59-64.
Min humidity........84-89 percent.
20-foot winds.......East winds 5 to 15 mph.
CWR (> 0.10 inch)...50 percent.
.Forecast days 3 through 7......
.MONDAY...Mostly cloudy. Lows in the upper 40s. Highs in the
upper 60s. Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows around 50. Highs in the upper 70s.
Southeast winds 5 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. Southeast winds 10 to 20 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs around 80.
$$
weather.gov/glasgow