Hourly Weather Forecast - Longmont, CO

12 AM
39°F
0%
4mph
SW
Mostly Clear
Humidity
62%
Feels like
37°F
Dew Point
27°F
1 AM
40°F
0%
4mph
SW
Clear
Humidity
62%
Feels like
37°F
Dew Point
28°F
2 AM
40°F
0%
3mph
SW
Clear
Humidity
62%
Feels like
38°F
Dew Point
28°F
3 AM
41°F
0%
3mph
SW
Clear
Humidity
60%
Feels like
39°F
Dew Point
28°F
4 AM
41°F
0%
3mph
SW
Mostly Clear
Humidity
60%
Feels like
41°F
Dew Point
28°F
5 AM
41°F
0%
3mph
SW
Mostly Clear
Humidity
58%
Feels like
39°F
Dew Point
27°F
6 AM
42°F
0%
3mph
SW
Mostly Clear
Humidity
55%
Feels like
42°F
Dew Point
27°F
7 AM
44°F
0%
3mph
SW
Mostly Clear
Humidity
52%
Feels like
44°F
Dew Point
27°F
7:19 AM
8 AM
47°F
0%
3mph
WSW
Mostly Sunny
Humidity
46%
Feels like
46°F
Dew Point
28°F
9 AM
53°F
0%
3mph
WSW
Mostly Sunny
Humidity
37%
Feels like
53°F
Dew Point
28°F
10 AM
59°F
0%
4mph
WSW
Mostly Sunny
Humidity
29%
Feels like
59°F
Dew Point
26°F
11 AM
63°F
0%
4mph
WSW
Mostly Sunny
Humidity
23%
Feels like
63°F
Dew Point
25°F
12 PM
67°F
0%
5mph
WSW
Mostly Sunny
Humidity
20%
Feels like
67°F
Dew Point
24°F
1 PM
69°F
0%
7mph
W
Mostly Sunny
Humidity
18%
Feels like
69°F
Dew Point
23°F
2 PM
69°F
0%
7mph
W
Mostly Sunny
Humidity
17%
Feels like
69°F
Dew Point
22°F
3 PM
67°F
0%
6mph
W
Mostly Sunny
Humidity
17%
Feels like
67°F
Dew Point
21°F
4 PM
63°F
0%
5mph
WSW
Mostly Sunny
Humidity
20%
Feels like
63°F
Dew Point
21°F
4:38 PM
5 PM
58°F
0%
5mph
WSW
Mostly Clear
Humidity
24%
Feels like
58°F
Dew Point
21°F
6 PM
53°F
0%
4mph
SW
Mostly Clear
Humidity
27%
Feels like
53°F
Dew Point
20°F
7 PM
51°F
0%
4mph
SSW
Mostly Clear
Humidity
30%
Feels like
51°F
Dew Point
21°F
8 PM
48°F
0%
4mph
SSW
Mostly Clear
Humidity
32%
Feels like
47°F
Dew Point
20°F
9 PM
46°F
0%
4mph
SW
Partly Cloudy
Humidity
32%
Feels like
45°F
Dew Point
18°F
10 PM
44°F
0%
4mph
SW
Partly Cloudy
Humidity
34%
Feels like
42°F
Dew Point
17°F
11 PM
41°F
0%
3mph
SW
Partly Cloudy
Humidity
38%
Feels like
40°F
Dew Point
18°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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