Hourly Weather Forecast - Sidney, MT

12 AM
13°F
10%
11mph
SE
Cloudy
Humidity
73%
Feels like
-1°F
Dew Point
6°F
1 AM
15°F
10%
12mph
SE
Cloudy
Humidity
74%
Feels like
1°F
Dew Point
8°F
2 AM
17°F
20%
13mph
SSE
Cloudy
Humidity
73%
Feels like
3°F
Dew Point
10°F
3 AM
19°F
20%
13mph
SSE
Cloudy
Humidity
72%
Feels like
5°F
Dew Point
11°F
4 AM
20°F
20%
14mph
SSE
Cloudy
Humidity
72%
Feels like
7°F
Dew Point
13°F
5 AM
22°F
20%
14mph
S
Cloudy
Humidity
73%
Feels like
9°F
Dew Point
14°F
6 AM
23°F
20%
14mph
S
Mostly Cloudy
Humidity
76%
Feels like
10°F
Dew Point
17°F
7 AM
24°F
10%
15mph
S
Mostly Cloudy
Humidity
77%
Feels like
12°F
Dew Point
18°F
7:41 AM
8 AM
27°F
10%
16mph
SSW
Mostly Cloudy
Humidity
76%
Feels like
15°F
Dew Point
20°F
9 AM
30°F
10%
17mph
SSW
Partly Cloudy
Humidity
73%
Feels like
18°F
Dew Point
22°F
10 AM
32°F
10%
19mph
SW
Partly Cloudy
Humidity
69%
Feels like
20°F
Dew Point
23°F
11 AM
33°F
20%
20mph
SW
Partly Cloudy
Humidity
69%
Feels like
21°F
Dew Point
24°F
12 PM
33°F
30%
20mph
WSW
30% Chance Frozen Mix
Humidity
70%
Feels like
21°F
Dew Point
24°F
1 PM
32°F
30%
19mph
WSW
30% Chance Frozen Mix
Humidity
74%
Feels like
20°F
Dew Point
25°F
2 PM
31°F
30%
19mph
W
30% Chance Frozen Mix
Humidity
78%
Feels like
19°F
Dew Point
25°F
3 PM
29°F
20%
18mph
W
Cloudy
Humidity
78%
Feels like
17°F
Dew Point
24°F
4 PM
30°F
10%
17mph
WNW
Cloudy
Humidity
72%
Feels like
18°F
Dew Point
22°F
4:06 PM
5 PM
29°F
30%
16mph
WNW
30% Chance Snow Showers
Humidity
68%
Feels like
18°F
Dew Point
20°F
6 PM
29°F
30%
15mph
WNW
30% Chance Snow Showers
Humidity
65%
Feels like
18°F
Dew Point
19°F
7 PM
27°F
30%
14mph
WNW
30% Chance Snow Showers
Humidity
69%
Feels like
16°F
Dew Point
18°F
8 PM
26°F
30%
13mph
NW
30% Chance Snow Showers
Humidity
73%
Feels like
14°F
Dew Point
18°F
9 PM
23°F
30%
12mph
NW
30% Chance Snow Showers
Humidity
76%
Feels like
12°F
Dew Point
17°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

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

Cold Air Damming - Cause And Effects

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