Hourly Weather Forecast - Grass Range, MT

12 AM
39°F
20%
12mph
W
Cloudy
Humidity
64%
Feels like
31°F
Dew Point
28°F
1 AM
38°F
30%
12mph
W
30% Chance of Flurries
Humidity
64%
Feels like
30°F
Dew Point
27°F
2 AM
36°F
30%
12mph
W
30% Chance of Flurries
Humidity
64%
Feels like
28°F
Dew Point
25°F
3 AM
35°F
20%
12mph
W
Cloudy
Humidity
65%
Feels like
27°F
Dew Point
24°F
4 AM
33°F
10%
11mph
W
Cloudy
Humidity
66%
Feels like
25°F
Dew Point
23°F
5 AM
32°F
10%
10mph
W
Cloudy
Humidity
67%
Feels like
24°F
Dew Point
22°F
6 AM
31°F
10%
9mph
W
Mostly Cloudy
Humidity
69%
Feels like
22°F
Dew Point
22°F
7 AM
29°F
10%
9mph
W
Partly Cloudy
Humidity
71%
Feels like
21°F
Dew Point
21°F
8 AM
29°F
10%
8mph
W
Partly Cloudy
Humidity
71%
Feels like
21°F
Dew Point
21°F
8:00 AM
9 AM
30°F
10%
8mph
W
Partly Cloudy
Humidity
70%
Feels like
22°F
Dew Point
21°F
10 AM
32°F
10%
8mph
W
Mostly Cloudy
Humidity
68%
Feels like
25°F
Dew Point
22°F
11 AM
33°F
10%
7mph
WSW
Cloudy
Humidity
66%
Feels like
27°F
Dew Point
23°F
12 PM
35°F
10%
6mph
SW
Cloudy
Humidity
64%
Feels like
29°F
Dew Point
24°F
1 PM
36°F
10%
7mph
S
Mostly Cloudy
Humidity
62%
Feels like
30°F
Dew Point
24°F
2 PM
36°F
10%
9mph
SSE
Mostly Cloudy
Humidity
61%
Feels like
29°F
Dew Point
24°F
3 PM
35°F
10%
9mph
SSE
Mostly Cloudy
Humidity
62%
Feels like
28°F
Dew Point
23°F
4 PM
33°F
10%
8mph
SSE
Mostly Cloudy
Humidity
65%
Feels like
26°F
Dew Point
22°F
4:31 PM
5 PM
31°F
10%
8mph
SSE
Mostly Cloudy
Humidity
67%
Feels like
24°F
Dew Point
22°F
6 PM
31°F
10%
8mph
S
Partly Cloudy
Humidity
69%
Feels like
23°F
Dew Point
21°F
7 PM
30°F
10%
8mph
S
Partly Cloudy
Humidity
70%
Feels like
22°F
Dew Point
21°F
8 PM
29°F
10%
8mph
S
Partly Cloudy
Humidity
71%
Feels like
22°F
Dew Point
21°F
9 PM
29°F
20%
8mph
S
Partly Cloudy
Humidity
72%
Feels like
21°F
Dew Point
21°F
10 PM
29°F
20%
8mph
S
Mostly Cloudy
Humidity
72%
Feels like
21°F
Dew Point
21°F
11 PM
29°F
20%
8mph
S
Cloudy
Humidity
72%
Feels like
21°F
Dew Point
21°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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