Hourly Weather Forecast - Herndon, VA

12 AM
28°F
0%
11mph
WNW
Clear
Humidity
55%
Feels like
18°F
Dew Point
13°F
1 AM
27°F
0%
9mph
WNW
Clear
Humidity
56%
Feels like
18°F
Dew Point
13°F
2 AM
26°F
0%
8mph
NW
Clear
Humidity
57%
Feels like
17°F
Dew Point
13°F
3 AM
26°F
0%
8mph
NW
Clear
Humidity
59%
Feels like
17°F
Dew Point
13°F
4 AM
25°F
0%
6mph
NW
Clear
Humidity
61%
Feels like
17°F
Dew Point
13°F
5 AM
25°F
0%
5mph
NW
Mostly Clear
Humidity
62%
Feels like
18°F
Dew Point
13°F
6 AM
24°F
0%
3mph
WNW
Partly Cloudy
Humidity
63%
Feels like
24°F
Dew Point
14°F
7 AM
25°F
0%
2mph
WSW
Partly Cloudy
Humidity
63%
Feels like
25°F
Dew Point
14°F
7:24 AM
8 AM
26°F
0%
3mph
SSW
Partly Cloudy
Humidity
61%
Feels like
26°F
Dew Point
15°F
9 AM
29°F
0%
4mph
S
Mostly Sunny
Humidity
57%
Feels like
24°F
Dew Point
15°F
10 AM
31°F
0%
6mph
S
Mostly Sunny
Humidity
53%
Feels like
25°F
Dew Point
16°F
11 AM
33°F
0%
7mph
S
Mostly Sunny
Humidity
51%
Feels like
27°F
Dew Point
17°F
12 PM
35°F
0%
9mph
S
Partly Cloudy
Humidity
50%
Feels like
28°F
Dew Point
18°F
1 PM
37°F
0%
11mph
S
Partly Cloudy
Humidity
49%
Feels like
30°F
Dew Point
20°F
2 PM
38°F
0%
11mph
S
Partly Cloudy
Humidity
48%
Feels like
31°F
Dew Point
20°F
3 PM
38°F
0%
11mph
S
Mostly Sunny
Humidity
49%
Feels like
31°F
Dew Point
21°F
4 PM
37°F
0%
11mph
S
Mostly Sunny
Humidity
53%
Feels like
30°F
Dew Point
22°F
4:50 PM
5 PM
36°F
0%
10mph
S
Mostly Clear
Humidity
57%
Feels like
28°F
Dew Point
22°F
6 PM
34°F
0%
10mph
S
Partly Cloudy
Humidity
61%
Feels like
27°F
Dew Point
22°F
7 PM
34°F
0%
11mph
S
Partly Cloudy
Humidity
64%
Feels like
25°F
Dew Point
23°F
8 PM
33°F
0%
11mph
S
Mostly Cloudy
Humidity
65%
Feels like
25°F
Dew Point
23°F
9 PM
34°F
0%
12mph
S
Mostly Cloudy
Humidity
64%
Feels like
25°F
Dew Point
23°F
10 PM
34°F
0%
12mph
S
Cloudy
Humidity
64%
Feels like
26°F
Dew Point
23°F
11 PM
35°F
10%
12mph
SSW
Cloudy
Humidity
63%
Feels like
26°F
Dew Point
24°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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