Hourly Weather Forecast - Grantsdale, MT

12 AM
37°F
0%
7mph
S
Clear
Humidity
63%
Feels like
32°F
Dew Point
26°F
1 AM
37°F
0%
7mph
S
Clear
Humidity
62%
Feels like
32°F
Dew Point
25°F
2 AM
37°F
0%
7mph
S
Clear
Humidity
63%
Feels like
31°F
Dew Point
25°F
3 AM
36°F
0%
7mph
S
Clear
Humidity
63%
Feels like
30°F
Dew Point
25°F
4 AM
36°F
0%
7mph
S
Clear
Humidity
64%
Feels like
30°F
Dew Point
25°F
5 AM
36°F
0%
7mph
S
Clear
Humidity
63%
Feels like
30°F
Dew Point
24°F
6 AM
36°F
0%
7mph
S
Clear
Humidity
62%
Feels like
31°F
Dew Point
24°F
7 AM
37°F
0%
7mph
S
Mostly Clear
Humidity
61%
Feels like
31°F
Dew Point
25°F
8 AM
38°F
10%
7mph
S
Mostly Clear
Humidity
60%
Feels like
33°F
Dew Point
25°F
8:11 AM
9 AM
40°F
10%
8mph
S
Mostly Sunny
Humidity
58%
Feels like
35°F
Dew Point
26°F
10 AM
43°F
10%
8mph
S
Mostly Sunny
Humidity
55%
Feels like
38°F
Dew Point
28°F
11 AM
46°F
10%
8mph
S
Mostly Sunny
Humidity
52%
Feels like
42°F
Dew Point
29°F
12 PM
48°F
10%
8mph
S
Mostly Sunny
Humidity
49%
Feels like
45°F
Dew Point
30°F
1 PM
50°F
10%
8mph
SSW
Partly Cloudy
Humidity
48%
Feels like
47°F
Dew Point
31°F
2 PM
50°F
10%
7mph
SSW
Partly Cloudy
Humidity
48%
Feels like
50°F
Dew Point
31°F
3 PM
48°F
10%
6mph
SSW
Partly Cloudy
Humidity
52%
Feels like
45°F
Dew Point
32°F
4 PM
46°F
10%
6mph
SSW
Partly Cloudy
Humidity
58%
Feels like
42°F
Dew Point
32°F
4:50 PM
5 PM
43°F
10%
5mph
SSW
Partly Cloudy
Humidity
63%
Feels like
40°F
Dew Point
31°F
6 PM
41°F
10%
5mph
SSW
Partly Cloudy
Humidity
66%
Feels like
38°F
Dew Point
31°F
7 PM
40°F
10%
5mph
S
Partly Cloudy
Humidity
67%
Feels like
37°F
Dew Point
30°F
8 PM
40°F
10%
6mph
S
Partly Cloudy
Humidity
67%
Feels like
36°F
Dew Point
30°F
9 PM
40°F
10%
6mph
S
Mostly Cloudy
Humidity
66%
Feels like
35°F
Dew Point
29°F
10 PM
39°F
10%
6mph
S
Mostly Cloudy
Humidity
66%
Feels like
35°F
Dew Point
29°F
11 PM
39°F
10%
6mph
S
Mostly Cloudy
Humidity
66%
Feels like
35°F
Dew Point
29°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide