Hourly Weather Forecast - Grantsdale, MT

12 AM
44°F
90%
12mph
S
Rain
Humidity
75%
Feels like
37°F
Dew Point
36°F
1 AM
44°F
90%
12mph
S
Rain
Humidity
75%
Feels like
38°F
Dew Point
37°F
2 AM
45°F
90%
12mph
S
Rain
Humidity
74%
Feels like
39°F
Dew Point
37°F
3 AM
45°F
90%
12mph
SSW
Rain
Humidity
74%
Feels like
40°F
Dew Point
37°F
4 AM
46°F
90%
12mph
SSW
Rain
Humidity
74%
Feels like
40°F
Dew Point
38°F
5 AM
46°F
100%
13mph
SSW
Rain
Humidity
75%
Feels like
40°F
Dew Point
38°F
6 AM
46°F
100%
12mph
SSW
Rain
Humidity
76%
Feels like
40°F
Dew Point
38°F
7 AM
46°F
100%
12mph
SSW
Rain
Humidity
75%
Feels like
40°F
Dew Point
38°F
8 AM
46°F
100%
11mph
SSW
Rain
Humidity
75%
Feels like
41°F
Dew Point
39°F
8:15 AM
9 AM
46°F
90%
11mph
SSW
Rain
Humidity
74%
Feels like
41°F
Dew Point
38°F
10 AM
46°F
90%
11mph
SSW
Rain
Humidity
75%
Feels like
40°F
Dew Point
38°F
11 AM
45°F
90%
11mph
SSW
Rain
Humidity
76%
Feels like
40°F
Dew Point
38°F
12 PM
44°F
80%
11mph
SSW
80% Chance of Rain
Humidity
77%
Feels like
39°F
Dew Point
38°F
1 PM
44°F
80%
10mph
SSW
80% Chance of Rain
Humidity
77%
Feels like
38°F
Dew Point
37°F
2 PM
43°F
80%
9mph
SW
80% Chance of Rain
Humidity
77%
Feels like
38°F
Dew Point
36°F
3 PM
42°F
80%
9mph
SW
80% Chance of Rain
Humidity
77%
Feels like
37°F
Dew Point
35°F
4 PM
42°F
80%
9mph
SW
80% Chance of Light Rain
Humidity
75%
Feels like
37°F
Dew Point
35°F
4:52 PM
5 PM
42°F
70%
9mph
WSW
70% Chance of Light Rain
Humidity
74%
Feels like
36°F
Dew Point
34°F
6 PM
41°F
70%
8mph
WSW
70% Chance of Light Rain
Humidity
72%
Feels like
36°F
Dew Point
33°F
7 PM
41°F
70%
8mph
WSW
70% Chance of Light Rain
Humidity
71%
Feels like
36°F
Dew Point
32°F
8 PM
41°F
60%
7mph
WSW
60% Chance of Light Rain
Humidity
70%
Feels like
36°F
Dew Point
32°F
9 PM
40°F
50%
7mph
WSW
50% Chance of Light Rain
Humidity
69%
Feels like
36°F
Dew Point
31°F
10 PM
40°F
50%
7mph
SW
50% Chance of Light Rain
Humidity
69%
Feels like
35°F
Dew Point
31°F
11 PM
40°F
50%
8mph
SW
50% Chance of Light Rain
Humidity
69%
Feels like
35°F
Dew Point
31°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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