Hourly Weather Forecast - Sweet Grass, MT

12 AM
39°F
0%
18mph
SW
Mostly Cloudy
Humidity
68%
Feels like
30°F
Dew Point
29°F
1 AM
38°F
0%
18mph
SW
Mostly Cloudy
Humidity
73%
Feels like
28°F
Dew Point
30°F
2 AM
36°F
0%
18mph
SW
Mostly Cloudy
Humidity
79%
Feels like
26°F
Dew Point
30°F
3 AM
35°F
0%
18mph
SW
Partly Cloudy
Humidity
83%
Feels like
24°F
Dew Point
30°F
4 AM
36°F
0%
18mph
SW
Partly Cloudy
Humidity
77%
Feels like
26°F
Dew Point
30°F
5 AM
37°F
0%
18mph
SW
Mostly Cloudy
Humidity
73%
Feels like
27°F
Dew Point
29°F
6 AM
37°F
0%
18mph
SSW
Partly Cloudy
Humidity
72%
Feels like
28°F
Dew Point
29°F
7 AM
37°F
0%
19mph
SSW
Cloudy
Humidity
72%
Feels like
27°F
Dew Point
29°F
8 AM
37°F
0%
19mph
SSW
Cloudy
Humidity
72%
Feels like
27°F
Dew Point
29°F
8:15 AM
9 AM
38°F
0%
20mph
SSW
Cloudy
Humidity
72%
Feels like
28°F
Dew Point
30°F
10 AM
39°F
0%
20mph
SSW
Cloudy
Humidity
72%
Feels like
29°F
Dew Point
30°F
11 AM
40°F
10%
20mph
SSW
Cloudy
Humidity
71%
Feels like
30°F
Dew Point
31°F
12 PM
41°F
10%
21mph
SSW
Windy
Humidity
71%
Feels like
32°F
Dew Point
32°F
1 PM
42°F
0%
23mph
SW
Windy
Humidity
70%
Feels like
33°F
Dew Point
33°F
2 PM
43°F
10%
25mph
SW
Windy
Humidity
70%
Feels like
33°F
Dew Point
34°F
3 PM
43°F
0%
27mph
SW
Windy
Humidity
71%
Feels like
33°F
Dew Point
34°F
4 PM
43°F
0%
28mph
WSW
Windy
Humidity
72%
Feels like
33°F
Dew Point
35°F
4:31 PM
5 PM
43°F
0%
30mph
WSW
Windy
Humidity
72%
Feels like
33°F
Dew Point
35°F
6 PM
43°F
0%
32mph
WSW
Windy
Humidity
73%
Feels like
33°F
Dew Point
35°F
7 PM
43°F
0%
36mph
WSW
Windy
Humidity
74%
Feels like
32°F
Dew Point
35°F
8 PM
43°F
0%
38mph
WSW
Windy
Humidity
74%
Feels like
32°F
Dew Point
35°F
9 PM
43°F
0%
38mph
WSW
Windy
Humidity
73%
Feels like
32°F
Dew Point
35°F
10 PM
44°F
0%
37mph
WSW
Windy
Humidity
71%
Feels like
32°F
Dew Point
35°F
11 PM
43°F
0%
36mph
WSW
Windy
Humidity
69%
Feels like
32°F
Dew Point
34°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

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

Cold Air Damming - Cause And Effects

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