680
FNUS55 KGGW 210643
FWFGGW

Fire Weather Planning Forecast for Northeast Montana
National Weather Service Glasgow MT
1243 AM MDT Mon Sep 21 2026

.DISCUSSION...

Warmer and drier conditions return this week as upper riding
builds through the work week. Highs reach at or near 80 by mid
week with min RH values between 20 and 30% and good overnight
recovery.


MTZ134-212215-
Northern Valley and Northern Phillips Counties-
1243 AM MDT Mon Sep 21 2026

.TODAY...
Sky/weather.........Partly cloudy (45-55 percent). Patchy dense fog
                    in the morning.
Chance of thunder...0 percent.
Max temperature.....65-70.
Min humidity........55-60 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Chance of thunder...0 percent.
Min temperature.....45-50.
Max humidity........95-100 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TUESDAY...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Max temperature.....72-77.
Min humidity........44-49 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.


.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s. Southeast winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows around 50. Highs in the lower 80s.
South winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
Southeast winds 10 to 20 mph.
.SATURDAY...Partly cloudy. A slight chance of showers. Lows in
the upper 40s. Highs in the upper 60s.
.SUNDAY...Partly cloudy. Lows in the lower 40s. Highs in the
lower 60s.

$$

MTZ135-212215-
The Little Rockies-
1243 AM MDT Mon Sep 21 2026

.TODAY...
Sky/weather.........Partly cloudy (45-55 percent). Patchy fog.
Chance of thunder...0 percent.
Max temperature.....71-76 valleys and 61-66 ridges.
Min humidity........47-52 percent valleys and 58-63 percent ridges.
20-foot winds.......
    Lower elevation......Southeast winds 5 to 15 mph.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Min temperature.....50-55 valleys and 44-49 ridges.
Max humidity........85-90 percent.
20-foot winds.......
    Lower elevation......Southeast winds 10 to 20 mph becoming east
                         5 to 10 mph early in the morning.
    Ridge............Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...Zero.

.TUESDAY...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Max temperature.....78-83 valleys and 68-73 ridges.
Min humidity........36-41 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 2-5 mph.
    Ridge............Southeast winds 5 to 10 mph.
CWR (> 0.10 inch)...Zero.


.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows in the mid 50s. Highs in the
upper 70s. Southwest winds 5 to 10 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. Southeast winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
Southeast winds 5 to 15 mph.
.SATURDAY...Partly cloudy. A slight chance of showers. Lows
around 50. Highs in the mid 60s.
.SUNDAY...Partly cloudy. A slight chance of showers. Lows in the
lower 40s. Highs in the lower 60s.

$$

MTZ136-212215-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
1243 AM MDT Mon Sep 21 2026

.TODAY...
Sky/weather.........Mostly cloudy (45-55 percent). Patchy dense fog
                    in the morning.
Chance of thunder...0 percent.
Max temperature.....67-72.
Min humidity........56-61 percent.
20-foot winds.......
    Lower elevation......Southeast winds 5 to 15 mph.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TONIGHT...
Sky/weather.........Partly cloudy (20-30 percent).
Chance of thunder...0 percent.
Min temperature.....46-51.
Max humidity........92-97 percent.
20-foot winds.......
    Lower elevation......Southeast winds 5 to 15 mph.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TUESDAY...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Max temperature.....74-79.
Min humidity........43-48 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 5-10 mph.
    Ridge............Southeast winds 5 to 10 mph.
CWR (> 0.10 inch)...Zero.


.Forecast days 3 through 7......
.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
lower 80s. South winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the upper 50s. Highs in the lower
80s. Southeast winds 5 to 15 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 60s.
.SUNDAY...Partly cloudy. A slight chance of showers. Lows in the
mid 40s. Highs in the mid 60s.

$$

MTZ137-212215-
Southern Petroleum and Southern Garfield Counties-
1243 AM MDT Mon Sep 21 2026

.TODAY...
Sky/weather.........Mostly cloudy (45-55 percent). Patchy dense fog
                    in the morning.
Chance of thunder...0 percent.
Max temperature.....66-71.
Min humidity........58-63 percent.
20-foot winds.......
    Lower elevation......Southeast winds 5 to 15 mph.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent).
Chance of thunder...0 percent.
Min temperature.....44-49.
Max humidity........95-100 percent.
20-foot winds.......
    Lower elevation......Southeast winds 5 to 15 mph.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TUESDAY...
Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    sunny (15-25 percent).
Chance of thunder...0 percent.
Max temperature.....73-78.
Min humidity........44-49 percent.
20-foot winds.......
    Lower elevation......Southeast winds 5 to 15 mph.
    Ridge............Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.


.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the upper
70s. South winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. South winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. South winds 10 to 20 mph.
.SATURDAY...Partly cloudy. Lows around 50. Highs in the upper
60s.
.SUNDAY...Partly cloudy. A slight chance of showers. Lows in the
mid 40s. Highs in the mid 60s.

$$

MTZ120-212215-
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
1243 AM MDT Mon Sep 21 2026

.TODAY...
Sky/weather.........Mostly cloudy (45-55 percent).
Chance of thunder...0 percent.
Max temperature.....64-69.
Min humidity........61-66 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Chance of thunder...0 percent.
Min temperature.....44-49.
Max humidity........95-100 percent.
20-foot winds.......Southeast winds 10 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TUESDAY...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Max temperature.....69-74.
Min humidity........55-60 percent.
20-foot winds.......Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...Zero.


.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
mid 70s. Southeast winds 10 to 20 mph.
.THURSDAY...Mostly clear. Lows around 50. Highs in the lower 80s.
South winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. Southeast winds 15 to 25 mph.
.SATURDAY...Partly cloudy. A slight chance of showers. Lows in
the lower 50s. Highs in the upper 60s.
.SUNDAY...Partly cloudy. Lows in the lower 40s. Highs in the
lower 60s.

$$

MTZ122-212215-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
1243 AM MDT Mon Sep 21 2026

.TODAY...
Sky/weather.........Mostly cloudy (45-55 percent).
Chance of thunder...0 percent.
Max temperature.....65-70.
Min humidity........63-68 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Min temperature.....43-48.
Max humidity........95-100 percent.
20-foot winds.......Southeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Zero.

.TUESDAY...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Max temperature.....71-76.
Min humidity........53-58 percent.
20-foot winds.......Southeast winds 10 to 20 mph.
CWR (> 0.10 inch)...Zero.


.Forecast days 3 through 7......
.WEDNESDAY...Partly cloudy. A chance of showers. Lows in the
upper 40s. Highs in the mid 70s. Southeast winds 10 to 20 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the
lower 80s. South winds 5 to 10 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. Southeast winds 10 to 20 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 70s.
.SUNDAY...Partly cloudy. A slight chance of showers. Lows in the
mid 40s. Highs in the upper 60s.

$$

weather.gov/glasgow