Hourly Weather Forecast - Grass Range, MT

3 AM
55°F
10%
30mph
W
Windy
Humidity
41%
Feels like
55°F
Dew Point
32°F
4 AM
53°F
10%
29mph
W
Windy
Humidity
44%
Feels like
53°F
Dew Point
32°F
5 AM
51°F
10%
29mph
W
Windy
Humidity
46%
Feels like
51°F
Dew Point
31°F
6 AM
49°F
0%
27mph
WNW
Windy
Humidity
48%
Feels like
42°F
Dew Point
30°F
7 AM
47°F
0%
25mph
WNW
Windy
Humidity
49%
Feels like
39°F
Dew Point
29°F
7:55 AM
8 AM
46°F
0%
23mph
WNW
Windy
Humidity
49%
Feels like
38°F
Dew Point
28°F
9 AM
46°F
0%
21mph
WNW
Windy
Humidity
49%
Feels like
37°F
Dew Point
28°F
10 AM
46°F
0%
20mph
WNW
Mostly Sunny
Humidity
48%
Feels like
38°F
Dew Point
27°F
11 AM
46°F
0%
19mph
WNW
Mostly Sunny
Humidity
47%
Feels like
39°F
Dew Point
27°F
12 PM
46°F
0%
19mph
WNW
Mostly Sunny
Humidity
46%
Feels like
39°F
Dew Point
27°F
1 PM
46°F
0%
18mph
WNW
Mostly Sunny
Humidity
45%
Feels like
39°F
Dew Point
26°F
2 PM
46°F
0%
17mph
WNW
Partly Cloudy
Humidity
45%
Feels like
39°F
Dew Point
26°F
3 PM
44°F
10%
13mph
WNW
Partly Cloudy
Humidity
49%
Feels like
37°F
Dew Point
26°F
4 PM
42°F
0%
10mph
W
Partly Cloudy
Humidity
53%
Feels like
37°F
Dew Point
26°F
4:27 PM
5 PM
41°F
10%
10mph
WSW
Mostly Cloudy
Humidity
56%
Feels like
35°F
Dew Point
27°F
6 PM
41°F
10%
11mph
WSW
Partly Cloudy
Humidity
57%
Feels like
34°F
Dew Point
27°F
7 PM
41°F
10%
12mph
WSW
Mostly Clear
Humidity
57%
Feels like
34°F
Dew Point
27°F
8 PM
42°F
10%
13mph
WSW
Partly Cloudy
Humidity
56%
Feels like
35°F
Dew Point
27°F
9 PM
42°F
0%
13mph
WSW
Mostly Clear
Humidity
56%
Feels like
35°F
Dew Point
27°F
10 PM
42°F
0%
14mph
WSW
Clear
Humidity
55%
Feels like
35°F
Dew Point
27°F
11 PM
42°F
0%
14mph
WSW
Clear
Humidity
54%
Feels like
35°F
Dew Point
27°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Tuesday's Weather Outlook

Tuesday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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