Hourly Weather Forecast - Longmont, CO

12 AM
49°F
0%
6mph
WSW
Clear
Humidity
44%
Feels like
46°F
Dew Point
28°F
1 AM
49°F
0%
5mph
WSW
Clear
Humidity
44%
Feels like
47°F
Dew Point
28°F
2 AM
49°F
0%
5mph
WSW
Clear
Humidity
44%
Feels like
48°F
Dew Point
28°F
3 AM
50°F
0%
5mph
WSW
Clear
Humidity
43%
Feels like
48°F
Dew Point
28°F
4 AM
49°F
0%
5mph
WSW
Clear
Humidity
42%
Feels like
48°F
Dew Point
27°F
5 AM
49°F
0%
5mph
WSW
Clear
Humidity
41%
Feels like
47°F
Dew Point
27°F
6 AM
50°F
0%
5mph
WSW
Clear
Humidity
39%
Feels like
50°F
Dew Point
26°F
7 AM
52°F
0%
5mph
WSW
Clear
Humidity
37%
Feels like
52°F
Dew Point
27°F
7:21 AM
8 AM
55°F
0%
5mph
WSW
Sunny
Humidity
35%
Feels like
55°F
Dew Point
27°F
9 AM
57°F
0%
6mph
WSW
Sunny
Humidity
30%
Feels like
57°F
Dew Point
26°F
10 AM
59°F
0%
7mph
WSW
Sunny
Humidity
27%
Feels like
59°F
Dew Point
25°F
11 AM
60°F
0%
8mph
WSW
Sunny
Humidity
25%
Feels like
60°F
Dew Point
24°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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