Hourly Weather Forecast - Longmont, CO

12 AM
46°F
0%
5mph
SW
Clear
Humidity
46%
Feels like
43°F
Dew Point
26°F
1 AM
45°F
0%
4mph
SW
Mostly Clear
Humidity
49%
Feels like
43°F
Dew Point
27°F
2 AM
44°F
0%
4mph
WSW
Mostly Clear
Humidity
52%
Feels like
42°F
Dew Point
28°F
3 AM
44°F
0%
4mph
WSW
Mostly Clear
Humidity
54%
Feels like
42°F
Dew Point
28°F
4 AM
43°F
0%
4mph
WSW
Mostly Clear
Humidity
56%
Feels like
41°F
Dew Point
29°F
5 AM
43°F
0%
4mph
WSW
Mostly Clear
Humidity
58%
Feels like
41°F
Dew Point
29°F
6 AM
44°F
0%
4mph
WSW
Mostly Clear
Humidity
58%
Feels like
42°F
Dew Point
30°F
7 AM
46°F
0%
4mph
WSW
Clear
Humidity
55%
Feels like
45°F
Dew Point
31°F
7:21 AM
8 AM
51°F
0%
3mph
WSW
Sunny
Humidity
48%
Feels like
51°F
Dew Point
32°F
9 AM
57°F
0%
3mph
WSW
Sunny
Humidity
39%
Feels like
57°F
Dew Point
32°F
10 AM
63°F
0%
4mph
WSW
Sunny
Humidity
31%
Feels like
63°F
Dew Point
31°F
11 AM
67°F
0%
4mph
WSW
Sunny
Humidity
26%
Feels like
67°F
Dew Point
31°F
12 PM
69°F
0%
5mph
WSW
Sunny
Humidity
23%
Feels like
69°F
Dew Point
30°F
1 PM
69°F
0%
6mph
WSW
Sunny
Humidity
23%
Feels like
69°F
Dew Point
30°F
2 PM
69°F
0%
7mph
WSW
Sunny
Humidity
24%
Feels like
69°F
Dew Point
30°F
3 PM
66°F
0%
6mph
WSW
Sunny
Humidity
25%
Feels like
66°F
Dew Point
29°F
4 PM
62°F
0%
5mph
WSW
Sunny
Humidity
28%
Feels like
62°F
Dew Point
29°F
4:40 PM
5 PM
58°F
0%
5mph
WSW
Clear
Humidity
33%
Feels like
58°F
Dew Point
29°F
6 PM
54°F
0%
5mph
W
Clear
Humidity
38%
Feels like
54°F
Dew Point
29°F
7 PM
52°F
0%
5mph
WSW
Clear
Humidity
43%
Feels like
52°F
Dew Point
30°F
8 PM
50°F
0%
5mph
WSW
Clear
Humidity
45%
Feels like
50°F
Dew Point
30°F
9 PM
49°F
0%
5mph
WSW
Clear
Humidity
45%
Feels like
47°F
Dew Point
29°F
10 PM
49°F
0%
6mph
WSW
Clear
Humidity
43%
Feels like
46°F
Dew Point
28°F
11 PM
49°F
0%
6mph
WSW
Clear
Humidity
43%
Feels like
46°F
Dew Point
28°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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