Hourly Weather Forecast - Roundup, MT

12 AM
22°F
10%
8mph
SW
Cloudy
Humidity
84%
Feels like
13°F
Dew Point
18°F
1 AM
24°F
0%
9mph
SW
Mostly Cloudy
Humidity
80%
Feels like
14°F
Dew Point
19°F
2 AM
26°F
0%
11mph
WSW
Mostly Cloudy
Humidity
78%
Feels like
16°F
Dew Point
20°F
3 AM
28°F
0%
12mph
WSW
Partly Cloudy
Humidity
77%
Feels like
17°F
Dew Point
21°F
4 AM
28°F
10%
12mph
WSW
Partly Cloudy
Humidity
78%
Feels like
18°F
Dew Point
22°F
5 AM
29°F
0%
12mph
WSW
Partly Cloudy
Humidity
78%
Feels like
19°F
Dew Point
23°F
6 AM
29°F
0%
12mph
WSW
Partly Cloudy
Humidity
78%
Feels like
20°F
Dew Point
23°F
7 AM
29°F
0%
11mph
WSW
Partly Cloudy
Humidity
78%
Feels like
20°F
Dew Point
23°F
7:43 AM
8 AM
30°F
0%
11mph
WSW
Partly Cloudy
Humidity
76%
Feels like
21°F
Dew Point
24°F
9 AM
33°F
0%
11mph
WSW
Partly Cloudy
Humidity
72%
Feels like
24°F
Dew Point
24°F
10 AM
35°F
0%
10mph
WSW
Partly Cloudy
Humidity
66%
Feels like
28°F
Dew Point
25°F
11 AM
38°F
0%
10mph
WSW
Mostly Cloudy
Humidity
62%
Feels like
31°F
Dew Point
26°F
12 PM
39°F
0%
9mph
WSW
Mostly Cloudy
Humidity
60%
Feels like
33°F
Dew Point
26°F
1 PM
40°F
0%
8mph
WSW
Mostly Cloudy
Humidity
58%
Feels like
34°F
Dew Point
26°F
2 PM
40°F
0%
8mph
WSW
Mostly Cloudy
Humidity
57%
Feels like
35°F
Dew Point
26°F
3 PM
39°F
0%
6mph
WSW
Mostly Cloudy
Humidity
60%
Feels like
34°F
Dew Point
26°F
4 PM
37°F
0%
6mph
SW
Cloudy
Humidity
63%
Feels like
32°F
Dew Point
25°F
4:27 PM
5 PM
35°F
0%
6mph
SW
Cloudy
Humidity
67%
Feels like
29°F
Dew Point
25°F
6 PM
34°F
0%
7mph
SW
Cloudy
Humidity
69%
Feels like
28°F
Dew Point
25°F
7 PM
33°F
10%
7mph
SW
Cloudy
Humidity
72%
Feels like
27°F
Dew Point
25°F
8 PM
33°F
10%
8mph
SW
Cloudy
Humidity
75%
Feels like
26°F
Dew Point
26°F
9 PM
33°F
20%
9mph
SW
Cloudy
Humidity
77%
Feels like
25°F
Dew Point
26°F
10 PM
33°F
10%
9mph
SW
Cloudy
Humidity
78%
Feels like
25°F
Dew Point
27°F
11 PM
33°F
10%
10mph
SW
Cloudy
Humidity
78%
Feels like
25°F
Dew Point
27°F

Snowfall Forecast Through Tonight

Accumulating Snow To Impact Parts of Northern U.S.

A plowable snow will occur for parts of the Pacific Northwest and Midwest this weekend.

Sunday's Weather Outlook

Sunday'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

Image courtesy of PeakPX.

Top 10 Winter Energy Saving Tips

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide