Hourly Weather Forecast - Grantsdale, MT

12 AM
38°F
10%
5mph
S
Mostly Cloudy
Humidity
70%
Feels like
34°F
Dew Point
30°F
1 AM
38°F
10%
6mph
S
Cloudy
Humidity
70%
Feels like
34°F
Dew Point
29°F
2 AM
38°F
10%
6mph
S
Cloudy
Humidity
71%
Feels like
34°F
Dew Point
29°F
3 AM
38°F
10%
6mph
S
Cloudy
Humidity
71%
Feels like
33°F
Dew Point
29°F
4 AM
37°F
10%
6mph
S
Mostly Cloudy
Humidity
74%
Feels like
32°F
Dew Point
29°F
5 AM
37°F
10%
6mph
S
Mostly Cloudy
Humidity
74%
Feels like
32°F
Dew Point
29°F
6 AM
38°F
10%
8mph
S
Mostly Cloudy
Humidity
74%
Feels like
32°F
Dew Point
30°F
7 AM
39°F
10%
8mph
S
Mostly Cloudy
Humidity
73%
Feels like
33°F
Dew Point
31°F
8 AM
40°F
10%
8mph
S
Mostly Cloudy
Humidity
72%
Feels like
34°F
Dew Point
31°F
8:12 AM
9 AM
41°F
10%
8mph
S
Mostly Cloudy
Humidity
70%
Feels like
36°F
Dew Point
32°F
10 AM
42°F
10%
9mph
S
Partly Cloudy
Humidity
69%
Feels like
37°F
Dew Point
33°F
11 AM
44°F
10%
9mph
S
Partly Cloudy
Humidity
69%
Feels like
38°F
Dew Point
34°F
12 PM
44°F
10%
9mph
S
Partly Cloudy
Humidity
68%
Feels like
39°F
Dew Point
35°F
1 PM
45°F
20%
10mph
S
Partly Cloudy
Humidity
68%
Feels like
40°F
Dew Point
35°F
2 PM
45°F
30%
9mph
S
30% Chance Rain Showers
Humidity
69%
Feels like
40°F
Dew Point
35°F
3 PM
45°F
30%
9mph
S
30% Chance Rain Showers
Humidity
71%
Feels like
40°F
Dew Point
36°F
4 PM
44°F
40%
9mph
S
40% Chance of Light Rain
Humidity
73%
Feels like
39°F
Dew Point
36°F
4:50 PM
5 PM
44°F
30%
8mph
S
30% Chance of Light Rain
Humidity
74%
Feels like
39°F
Dew Point
36°F
6 PM
44°F
30%
8mph
S
30% Chance of Light Rain
Humidity
74%
Feels like
39°F
Dew Point
36°F
7 PM
44°F
20%
8mph
S
Cloudy
Humidity
74%
Feels like
39°F
Dew Point
36°F
8 PM
44°F
30%
8mph
S
30% Chance of Light Rain
Humidity
74%
Feels like
40°F
Dew Point
36°F
9 PM
44°F
30%
7mph
S
30% Chance of Light Rain
Humidity
74%
Feels like
40°F
Dew Point
37°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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Traffic Cameras

Weather Cameras

Outdoor Sports Guide