034
FNUS55 KGGW 180654
FWFGGW

Fire Weather Planning Forecast for Northeast Montana
National Weather Service Glasgow MT
1254 AM MDT Fri Sep 18 2026

.DISCUSSION...
Near normal temps start today as a ridge exits the region. By
tonight, a disturbance will bring wetting rains into Montana
with showers and thunderstorms. Rainfall totals south of the
Missouri River in some locations could be over an inch by Sunday.
Warmer and drier conditions are expected to return early next week
and hold steady to the end of the work week.


MTZ134-182215-
Northern Valley and Northern Phillips Counties-
1254 AM MDT Fri Sep 18 2026

.TODAY...
Sky/weather.........Partly cloudy (35-45 percent).
Chance of thunder...0 percent.
Max temperature.....73-78.
Min humidity........48-53 percent.
20-foot winds.......North winds 10 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent).
Chance of thunder...0 percent.
Min temperature.....49-54.
Max humidity........93-98 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.SATURDAY...
Sky/weather.........Cloudy (85-95 percent). A chance of showers.
Chance of thunder...0 percent.
Max temperature.....64-69.
Min humidity........55-60 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...30 percent.


.Forecast days 3 through 7......
.SUNDAY...Cloudy. A chance of showers. Lows around 50. Highs in
the mid 60s. East winds 5 to 15 mph.
.MONDAY...Mostly cloudy. Lows in the upper 40s. Highs around 70.
Southeast winds 5 to 15 mph.
.TUESDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
Southeast winds 5 to 15 mph.
.WEDNESDAY...Mostly clear. Lows around 50. Highs in the mid 70s.
.THURSDAY...Mostly clear. Lows around 50. Highs in the upper 70s.

$$

MTZ135-182215-
The Little Rockies-
1254 AM MDT Fri Sep 18 2026

.TODAY...
Sky/weather.........Partly cloudy (30-40 percent).
Chance of thunder...0 percent.
Max temperature.....77-82 valleys and 67-72 ridges.
Min humidity........36-41 percent valleys and 47-52 percent ridges.
20-foot winds.......
    Lower elevation......Upslope/upvalley 2-5 mph becoming
                         upslope/upvalley 4-8 mph late in the
                         afternoon.
    Ridge............North winds 5 to 10 mph.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent). A slight chance
                    of showers after midnight.
Chance of thunder...0 percent.
Min temperature.....54-59 valleys and 47-52 ridges.
Max humidity........81-86 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.........Cloudy (90-100 percent). A chance of showers.
Chance of thunder...0 percent.
Max temperature.....65-70 valleys and 56-61 ridges.
Min humidity........60-65 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 2-5 mph.
    Ridge............Northeast winds 5 to 10 mph.
CWR (> 0.10 inch)...40 percent.


.Forecast days 3 through 7......
.SUNDAY...Showers likely and a slight chance of thunderstorms.
Lows in the lower 50s. Highs in the mid 60s. East winds 5 to
10 mph.
.MONDAY...Partly cloudy. Lows around 50. Highs around 70.
Southeast winds 5 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. South winds 5 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
mid 70s.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s.

$$

MTZ136-182215-
The Lower Missouri River Breaks including the Charles M Russell
National Wildlife Refuge-
1254 AM MDT Fri Sep 18 2026

.TODAY...
Sky/weather.........Partly cloudy (30-40 percent).
Chance of thunder...0 percent.
Max temperature.....75-80.
Min humidity........44-49 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 2-5 mph becoming
                         upslope/upvalley 4-8 mph late in the
                         afternoon.
    Ridge............West winds up to 5 mph becoming north 5 to 10
                     mph in the late morning and afternoon.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent). A slight chance
                    of showers in the evening, then a chance of
                    showers after midnight.
Chance of thunder...0 percent.
Min temperature.....53-58.
Max humidity........89-94 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 in the morning, then showers
                    likely and a slight chance of thunderstorms in
                    the afternoon.
Chance of thunder...20 percent.
Max temperature.....62-67.
Min humidity........69-74 percent.
20-foot winds.......
    Lower elevation......Northeast winds 5 to 15 mph.
    Ridge............Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...60 percent.


.Forecast days 3 through 7......
.SUNDAY...Showers likely. Lows in the lower 50s. Highs in the mid
60s. East winds 5 to 15 mph.
.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 5 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.

$$

MTZ137-182215-
Southern Petroleum and Southern Garfield Counties-
1254 AM MDT Fri Sep 18 2026

.TODAY...
Sky/weather.........Partly cloudy (30-40 percent).
Chance of thunder...0 percent.
Max temperature.....75-80.
Min humidity........43-48 percent.
20-foot winds.......
    Lower elevation......Upslope/upvalley 5-10 mph becoming
                         upslope/upvalley 4-8 mph late in the
                         afternoon.
    Ridge............West winds 5 to 10 mph becoming north 10 to 15
                     mph late in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........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.....52-57.
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)...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.....60-65.
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.


.Forecast days 3 through 7......
.SUNDAY...Showers. Lows in the lower 50s. Highs in the lower 60s.
Northeast winds 5 to 15 mph.
.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. South winds 5 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.

$$

MTZ120-182215-
Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties-
1254 AM MDT Fri Sep 18 2026

.TODAY...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Max temperature.....74-79.
Min humidity........56-61 percent.
20-foot winds.......Southeast winds 5 to 15 mph becoming southwest
                    early in the afternoon, then becoming north 5
                    to 10 mph late in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (55-65 percent). A slight chance
                    of showers and thunderstorms in the evening,
                    then a slight chance of showers after midnight.
Chance of thunder...20 percent.
Min temperature.....50-55.
Max humidity........95-100 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...10 percent.

.SATURDAY...
Sky/weather.........Cloudy (85-95 percent). A chance of showers.
Chance of thunder...0 percent.
Max temperature.....62-67.
Min humidity........67-72 percent.
20-foot winds.......Northeast winds 5 to 15 mph.
CWR (> 0.10 inch)...30 percent.


.Forecast days 3 through 7......
.SUNDAY...Showers likely. Lows around 50. Highs in the lower 60s.
East winds 10 to 15 mph.
.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 lower 70s.
Southeast winds 10 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
mid 70s.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s.

$$

MTZ122-182215-
Dawson/McCone/Prairie/Richland/Wibaux Counties-
1254 AM MDT Fri Sep 18 2026

.TODAY...
Sky/weather.........Partly cloudy (40-50 percent).
Chance of thunder...0 percent.
Max temperature.....77-82.
Min humidity........51-56 percent.
20-foot winds.......South winds 5 to 15 mph becoming northeast 5 to
                    10 mph late in the afternoon.
CWR (> 0.10 inch)...Less than 10 percent.

.TONIGHT...
Sky/weather.........Mostly cloudy (50-60 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.....52-57.
Max humidity........95-100 percent.
20-foot winds.......Northeast winds 5 to 10 mph.
CWR (> 0.10 inch)...20 percent.

.SATURDAY...
Sky/weather.........A chance of showers and a slight chance of
                    thunderstorms in the morning, then showers
                    likely and a slight chance of thunderstorms in
                    the afternoon.
Chance of thunder...20 percent.
Max temperature.....62-67.
Min humidity........82-87 percent.
20-foot winds.......East winds 5 to 15 mph.
CWR (> 0.10 inch)...60 percent.


.Forecast days 3 through 7......
.SUNDAY...Showers. Lows in the lower 50s. Highs in the lower 60s.
East winds 10 to 15 mph.
.MONDAY...Mostly cloudy. A slight chance of showers. Lows in the
upper 40s. Highs around 70. Southeast winds 5 to 15 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.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.

$$

weather.gov/glasgow