Hourly Weather Forecast - Custer, MT

12 AM
28°F
0%
5mph
SW
Partly Cloudy
Humidity
62%
Feels like
22°F
Dew Point
17°F
1 AM
28°F
0%
5mph
SW
Partly Cloudy
Humidity
63%
Feels like
22°F
Dew Point
17°F
2 AM
27°F
0%
4mph
SW
Partly Cloudy
Humidity
64%
Feels like
22°F
Dew Point
17°F
3 AM
27°F
0%
4mph
SW
Partly Cloudy
Humidity
65%
Feels like
22°F
Dew Point
17°F
4 AM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
66%
Feels like
21°F
Dew Point
17°F
5 AM
26°F
0%
4mph
SW
Mostly Cloudy
Humidity
67%
Feels like
21°F
Dew Point
17°F
6 AM
26°F
0%
3mph
SW
Mostly Cloudy
Humidity
68%
Feels like
22°F
Dew Point
17°F
7 AM
26°F
0%
3mph
SW
Cloudy
Humidity
69%
Feels like
26°F
Dew Point
17°F
7:50 AM
8 AM
26°F
10%
2mph
SW
Cloudy
Humidity
69%
Feels like
26°F
Dew Point
17°F
9 AM
28°F
10%
2mph
SW
Cloudy
Humidity
67%
Feels like
28°F
Dew Point
18°F
10 AM
31°F
10%
3mph
SSW
Mostly Cloudy
Humidity
62%
Feels like
28°F
Dew Point
19°F
11 AM
33°F
10%
3mph
SSW
Mostly Cloudy
Humidity
59%
Feels like
30°F
Dew Point
20°F
12 PM
35°F
10%
3mph
SSW
Mostly Cloudy
Humidity
56%
Feels like
33°F
Dew Point
21°F
1 PM
37°F
10%
2mph
SSW
Cloudy
Humidity
55%
Feels like
37°F
Dew Point
22°F
2 PM
37°F
10%
2mph
S
Cloudy
Humidity
54%
Feels like
37°F
Dew Point
22°F
3 PM
37°F
10%
2mph
S
Cloudy
Humidity
57%
Feels like
37°F
Dew Point
23°F
4 PM
35°F
10%
1mph
SSE
Mostly Cloudy
Humidity
61%
Feels like
35°F
Dew Point
23°F
4:27 PM
5 PM
33°F
10%
1mph
SE
Mostly Cloudy
Humidity
65%
Feels like
33°F
Dew Point
23°F
6 PM
33°F
10%
1mph
SE
Mostly Cloudy
Humidity
66%
Feels like
33°F
Dew Point
23°F
7 PM
32°F
10%
2mph
SSE
Cloudy
Humidity
67%
Feels like
32°F
Dew Point
23°F
8 PM
32°F
10%
2mph
S
Cloudy
Humidity
68%
Feels like
32°F
Dew Point
23°F
9 PM
32°F
10%
2mph
S
Cloudy
Humidity
69%
Feels like
32°F
Dew Point
23°F
10 PM
32°F
10%
2mph
S
Cloudy
Humidity
71%
Feels like
32°F
Dew Point
23°F
11 PM
31°F
10%
2mph
S
Cloudy
Humidity
72%
Feels like
31°F
Dew Point
24°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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