Hourly Weather Forecast - Roundup, MT

2 AM
29°F
0%
11mph
WSW
Mostly Cloudy
Humidity
79%
Feels like
19°F
Dew Point
23°F
3 AM
30°F
0%
12mph
WSW
Partly Cloudy
Humidity
78%
Feels like
20°F
Dew Point
24°F
4 AM
30°F
0%
12mph
WSW
Partly Cloudy
Humidity
78%
Feels like
21°F
Dew Point
24°F
5 AM
31°F
0%
12mph
WSW
Partly Cloudy
Humidity
77%
Feels like
21°F
Dew Point
24°F
6 AM
31°F
0%
12mph
WSW
Partly Cloudy
Humidity
77%
Feels like
21°F
Dew Point
24°F
7 AM
31°F
0%
11mph
WSW
Partly Cloudy
Humidity
77%
Feels like
21°F
Dew Point
24°F
7:43 AM
8 AM
31°F
0%
11mph
WSW
Partly Cloudy
Humidity
76%
Feels like
22°F
Dew Point
25°F
9 AM
33°F
0%
11mph
WSW
Partly Cloudy
Humidity
72%
Feels like
24°F
Dew Point
25°F
10 AM
35°F
0%
10mph
WSW
Mostly Cloudy
Humidity
67%
Feels like
28°F
Dew Point
25°F
11 AM
37°F
0%
10mph
WSW
Mostly Cloudy
Humidity
63%
Feels like
30°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
35°F
Dew Point
27°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
Partly Cloudy
Humidity
60%
Feels like
34°F
Dew Point
26°F
4 PM
37°F
0%
6mph
SW
Partly Cloudy
Humidity
64%
Feels like
32°F
Dew Point
26°F
4:27 PM
5 PM
35°F
0%
6mph
SSW
Mostly Cloudy
Humidity
69%
Feels like
29°F
Dew Point
25°F
6 PM
33°F
0%
6mph
SSW
Cloudy
Humidity
72%
Feels like
27°F
Dew Point
25°F
7 PM
33°F
10%
7mph
SW
Cloudy
Humidity
75%
Feels like
26°F
Dew Point
26°F
8 PM
33°F
10%
8mph
SW
Cloudy
Humidity
77%
Feels like
25°F
Dew Point
26°F
9 PM
33°F
20%
9mph
SW
Cloudy
Humidity
78%
Feels like
25°F
Dew Point
27°F
10 PM
33°F
10%
9mph
SW
Cloudy
Humidity
79%
Feels like
25°F
Dew Point
27°F
11 PM
33°F
10%
10mph
SW
Cloudy
Humidity
79%
Feels like
25°F
Dew Point
27°F

Snow Totals Through Tonight

Snow Impacts Great Lakes To New England

A low pressure system spurs a swath of snow from Wisconsin to New England today.

Today's Weather Outlook

Today'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

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Outdoor Sports Guide