Hourly Weather Forecast - Great Falls, MT

12 AM
30°F
10%
6mph
ESE
Partly Cloudy
Humidity
86%
Feels like
24°F
Dew Point
26°F
1 AM
30°F
10%
5mph
SE
Cloudy
Humidity
84%
Feels like
24°F
Dew Point
25°F
2 AM
30°F
10%
5mph
S
Cloudy
Humidity
83%
Feels like
24°F
Dew Point
25°F
3 AM
29°F
10%
5mph
SSW
Cloudy
Humidity
82%
Feels like
24°F
Dew Point
25°F
4 AM
30°F
10%
6mph
WSW
Cloudy
Humidity
84%
Feels like
24°F
Dew Point
26°F
5 AM
30°F
10%
6mph
WNW
Cloudy
Humidity
81%
Feels like
24°F
Dew Point
25°F
6 AM
31°F
10%
6mph
WNW
Cloudy
Humidity
80%
Feels like
25°F
Dew Point
25°F
7 AM
31°F
10%
6mph
NW
Cloudy
Humidity
79%
Feels like
25°F
Dew Point
25°F
8 AM
31°F
10%
7mph
NNW
Cloudy
Humidity
84%
Feels like
25°F
Dew Point
27°F
8:11 AM
9 AM
32°F
0%
7mph
NNW
Cloudy
Humidity
82%
Feels like
25°F
Dew Point
27°F
10 AM
33°F
10%
8mph
NNW
Cloudy
Humidity
73%
Feels like
26°F
Dew Point
25°F
11 AM
33°F
10%
9mph
N
Cloudy
Humidity
66%
Feels like
26°F
Dew Point
24°F
12 PM
33°F
10%
10mph
N
Cloudy
Humidity
64%
Feels like
26°F
Dew Point
23°F
1 PM
33°F
20%
11mph
N
Mostly Cloudy
Humidity
62%
Feels like
25°F
Dew Point
21°F
2 PM
32°F
10%
11mph
N
Partly Cloudy
Humidity
61%
Feels like
23°F
Dew Point
20°F
3 PM
30°F
10%
11mph
N
Partly Cloudy
Humidity
64%
Feels like
20°F
Dew Point
19°F
4 PM
28°F
10%
11mph
N
Mostly Cloudy
Humidity
68%
Feels like
18°F
Dew Point
19°F
4:38 PM
5 PM
26°F
20%
11mph
N
Cloudy
Humidity
76%
Feels like
16°F
Dew Point
19°F
6 PM
25°F
30%
10mph
NNW
30% Chance of Flurries
Humidity
77%
Feels like
15°F
Dew Point
19°F
7 PM
24°F
30%
10mph
NNW
30% Chance of Flurries
Humidity
80%
Feels like
15°F
Dew Point
19°F
8 PM
24°F
40%
9mph
NNW
40% Chance of Flurries
Humidity
79%
Feels like
14°F
Dew Point
18°F
9 PM
23°F
40%
9mph
NNW
40% Chance of Flurries
Humidity
78%
Feels like
13°F
Dew Point
17°F
10 PM
22°F
30%
9mph
NW
30% Chance of Flurries
Humidity
75%
Feels like
12°F
Dew Point
16°F
11 PM
22°F
30%
10mph
NW
30% Chance of Flurries
Humidity
75%
Feels like
12°F
Dew Point
16°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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