Grass Range, MT Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Grass Range, MT.

Current conditions are temporarily unavailable for GRASS RANGE, MONTANA. No nearby METAR station found.

5-Day Forecast — Grass Range, MT

Thursday

High 41 °F
Chance of Snow
Thursday
Night
Low 26 °F
Chance of Snow
Friday

High 37 °F
Forecast Missing
Friday
Night
Low 23 °F
Forecast Missing
Saturday

High 41 °F
Forecast Missing
Saturday
Night
Low 23 °F
Forecast Missing
Sunday

High 41 °F
Forecast Missing
Sunday
Night
Low 26 °F
Forecast Missing
Monday

High 48 °F
Forecast Missing

Detailed Forecast — Grass Range, MT

Thursday
Chance of Snow. High near 41°F. Wind 22 to 30 mph, with gusts as high as 38 mph.
Thursday Night
Chance of Snow. Low around 26°F. Wind 14 to 20 mph, with gusts as high as 28 mph.
Friday
Forecast Missing. High near 37°F. Wind 23 to 29 mph, with gusts as high as 37 mph.
Friday Night
Forecast Missing. Low around 23°F. Wind 14 to 24 mph, with gusts as high as 33 mph.
Saturday
Forecast Missing. High near 41°F. Wind 12 to 16 mph, with gusts as high as 22 mph.
Saturday Night
Forecast Missing. Low around 23°F. Wind 3 to 5 mph, with gusts as high as 8 mph.
Sunday
Forecast Missing. High near 41°F. Wind around 10 mph, with gusts as high as 16 mph.
Sunday Night
Forecast Missing. Low around 26°F. Wind 3 to 5 mph, with gusts as high as 8 mph.
Monday
Forecast Missing. High near 48°F. Wind 6 to 7 mph, with gusts as high as 12 mph.
Monday Night
Forecast Missing. Low around 30°F. Wind around 6 mph, with gusts as high as 12 mph.
Tuesday
Forecast Missing. High near 57°F. Wind 10 to 12 mph, with gusts as high as 17 mph.
Tuesday Night
Forecast Missing. Low around 35°F. Wind around 6 mph, with gusts as high as 10 mph.
Wednesday
Forecast Missing. High near 55°F. Wind 12 to 13 mph, with gusts as high as 18 mph.
MT Radar
Current Radar • MT
Day 1 Outlook • April 23, 2026

Observation History — Grass Range, MT

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)

Regional Weather Observation

(KLWT)


F

ECHO (K1EM)

Cloudy
32.0 F

DELTA (K1DM)

Light Rain
32.0 F

N BAR RANCH (KMVH)

Mostly Cloudy and Windy
37.4 F

CHARLIE (K1CM)

Light Snow and Fog/Mist
28.4 F

BRAVO (K1BM)

Light Snow
30.7 F
🔔    Sign-up to receive daily weather forecasts by email or text - subscribe