Hourly Weather Forecast - Lewistown, MT

5 AM
27°F
0%
14mph
WSW
Partly Cloudy
Humidity
54%
Feels like
15°F
Dew Point
12°F
6 AM
27°F
0%
14mph
WSW
Partly Cloudy
Humidity
52%
Feels like
16°F
Dew Point
12°F
7 AM
28°F
0%
14mph
WSW
Partly Cloudy
Humidity
53%
Feels like
17°F
Dew Point
13°F
8 AM
29°F
0%
14mph
WSW
Partly Cloudy
Humidity
53%
Feels like
18°F
Dew Point
15°F
8:00 AM
9 AM
31°F
0%
15mph
WSW
Partly Cloudy
Humidity
52%
Feels like
20°F
Dew Point
15°F
10 AM
33°F
0%
16mph
WSW
Partly Cloudy
Humidity
49%
Feels like
22°F
Dew Point
16°F
11 AM
35°F
0%
17mph
WSW
Partly Cloudy
Humidity
43%
Feels like
25°F
Dew Point
15°F
12 PM
37°F
0%
18mph
W
Partly Cloudy
Humidity
37%
Feels like
27°F
Dew Point
13°F
1 PM
38°F
0%
18mph
W
Partly Cloudy
Humidity
34%
Feels like
28°F
Dew Point
12°F
2 PM
37°F
0%
18mph
W
Partly Cloudy
Humidity
35%
Feels like
28°F
Dew Point
12°F
3 PM
36°F
0%
17mph
WSW
Partly Cloudy
Humidity
39%
Feels like
26°F
Dew Point
13°F
4 PM
34°F
0%
15mph
WSW
Partly Cloudy
Humidity
43%
Feels like
24°F
Dew Point
14°F
4:30 PM
5 PM
32°F
0%
14mph
WSW
Mostly Clear
Humidity
48%
Feels like
22°F
Dew Point
15°F
6 PM
31°F
0%
14mph
SW
Mostly Clear
Humidity
51%
Feels like
20°F
Dew Point
15°F
7 PM
29°F
0%
14mph
SW
Mostly Clear
Humidity
51%
Feels like
19°F
Dew Point
14°F
8 PM
28°F
0%
13mph
SW
Clear
Humidity
54%
Feels like
17°F
Dew Point
14°F
9 PM
27°F
0%
13mph
SW
Mostly Clear
Humidity
55%
Feels like
16°F
Dew Point
13°F
10 PM
26°F
0%
13mph
SW
Partly Cloudy
Humidity
56%
Feels like
15°F
Dew Point
13°F
11 PM
26°F
0%
12mph
SW
Cloudy
Humidity
54%
Feels like
15°F
Dew Point
11°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

Weekend Weather Outlook

Weekend 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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide