Hourly Weather Forecast - Grass Range, MT

12 AM
32°F
0%
6mph
S
Cloudy
Humidity
72%
Feels like
27°F
Dew Point
24°F
1 AM
33°F
0%
6mph
S
Cloudy
Humidity
73%
Feels like
27°F
Dew Point
25°F
2 AM
33°F
0%
6mph
S
Cloudy
Humidity
73%
Feels like
27°F
Dew Point
25°F
3 AM
33°F
0%
7mph
S
Cloudy
Humidity
74%
Feels like
27°F
Dew Point
26°F
4 AM
34°F
0%
6mph
S
Cloudy
Humidity
74%
Feels like
28°F
Dew Point
26°F
5 AM
34°F
0%
6mph
S
Cloudy
Humidity
74%
Feels like
29°F
Dew Point
27°F
6 AM
34°F
0%
6mph
SSW
Cloudy
Humidity
75%
Feels like
29°F
Dew Point
27°F
7 AM
34°F
0%
6mph
SSW
Cloudy
Humidity
77%
Feels like
29°F
Dew Point
28°F
7:59 AM
8 AM
35°F
0%
6mph
SSW
Mostly Cloudy
Humidity
77%
Feels like
29°F
Dew Point
28°F
9 AM
36°F
0%
5mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
32°F
Dew Point
29°F
10 AM
38°F
0%
4mph
SSW
Partly Cloudy
Humidity
70%
Feels like
36°F
Dew Point
30°F
11 AM
40°F
0%
3mph
SSW
Partly Cloudy
Humidity
67%
Feels like
39°F
Dew Point
30°F
12 PM
42°F
0%
2mph
SSW
Partly Cloudy
Humidity
65%
Feels like
42°F
Dew Point
31°F
1 PM
43°F
0%
2mph
S
Partly Cloudy
Humidity
63%
Feels like
43°F
Dew Point
32°F
2 PM
44°F
0%
2mph
SSE
Mostly Cloudy
Humidity
63%
Feels like
44°F
Dew Point
32°F
3 PM
42°F
0%
2mph
SSE
Mostly Cloudy
Humidity
66%
Feels like
42°F
Dew Point
32°F
4 PM
40°F
0%
2mph
S
Cloudy
Humidity
69%
Feels like
40°F
Dew Point
31°F
4:30 PM
5 PM
38°F
10%
2mph
SSW
Cloudy
Humidity
73%
Feels like
38°F
Dew Point
30°F
6 PM
38°F
10%
2mph
SW
Cloudy
Humidity
74%
Feels like
38°F
Dew Point
30°F
7 PM
37°F
10%
2mph
SW
Cloudy
Humidity
76%
Feels like
37°F
Dew Point
31°F
8 PM
37°F
10%
3mph
SW
Cloudy
Humidity
77%
Feels like
37°F
Dew Point
31°F
9 PM
37°F
10%
3mph
SW
Mostly Cloudy
Humidity
78%
Feels like
37°F
Dew Point
30°F
10 PM
37°F
10%
3mph
SSW
Partly Cloudy
Humidity
77%
Feels like
34°F
Dew Point
30°F
11 PM
36°F
10%
4mph
SSW
Partly Cloudy
Humidity
77%
Feels like
33°F
Dew Point
30°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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