Hourly Weather Forecast - Herndon, VA

12 AM
50°F
100%
17mph
S
Light Rain
Humidity
87%
Feels like
50°F
Dew Point
46°F
1 AM
51°F
100%
17mph
S
Light Rain
Humidity
87%
Feels like
51°F
Dew Point
47°F
2 AM
51°F
100%
16mph
S
Light Rain
Humidity
89%
Feels like
51°F
Dew Point
48°F
3 AM
52°F
100%
15mph
SSW
Light Rain
Humidity
90%
Feels like
52°F
Dew Point
49°F
4 AM
51°F
100%
17mph
SSW
Rain
Humidity
87%
Feels like
51°F
Dew Point
47°F
5 AM
50°F
90%
15mph
SW
Thunderstorms
Humidity
83%
Feels like
50°F
Dew Point
45°F
6 AM
48°F
90%
13mph
WSW
Thunderstorms
Humidity
83%
Feels like
43°F
Dew Point
43°F
7 AM
47°F
50%
14mph
W
50% Chance Rain Showers
Humidity
76%
Feels like
41°F
Dew Point
40°F
7:23 AM
8 AM
46°F
30%
15mph
W
30% Chance Rain Showers
Humidity
73%
Feels like
40°F
Dew Point
38°F
9 AM
46°F
10%
17mph
W
Partly Cloudy
Humidity
67%
Feels like
39°F
Dew Point
36°F
10 AM
45°F
10%
19mph
W
Partly Cloudy
Humidity
63%
Feels like
37°F
Dew Point
33°F
11 AM
44°F
10%
19mph
W
Partly Cloudy
Humidity
58%
Feels like
36°F
Dew Point
31°F
12 PM
44°F
10%
19mph
W
Mostly Sunny
Humidity
55%
Feels like
36°F
Dew Point
29°F
1 PM
44°F
10%
19mph
WNW
Sunny
Humidity
53%
Feels like
35°F
Dew Point
28°F
2 PM
42°F
10%
19mph
WNW
Sunny
Humidity
48%
Feels like
34°F
Dew Point
24°F
3 PM
41°F
0%
18mph
WNW
Sunny
Humidity
47%
Feels like
32°F
Dew Point
22°F
4 PM
38°F
0%
17mph
WNW
Sunny
Humidity
47%
Feels like
29°F
Dew Point
20°F
4:49 PM
5 PM
36°F
0%
16mph
WNW
Mostly Clear
Humidity
47%
Feels like
27°F
Dew Point
18°F
6 PM
34°F
0%
15mph
WNW
Mostly Clear
Humidity
48%
Feels like
24°F
Dew Point
17°F
7 PM
33°F
0%
15mph
WNW
Mostly Clear
Humidity
50%
Feels like
22°F
Dew Point
16°F
8 PM
31°F
0%
15mph
WNW
Mostly Clear
Humidity
52%
Feels like
20°F
Dew Point
15°F
9 PM
30°F
0%
15mph
WNW
Clear
Humidity
52%
Feels like
19°F
Dew Point
14°F
10 PM
29°F
0%
14mph
WNW
Clear
Humidity
52%
Feels like
18°F
Dew Point
14°F
11 PM
28°F
0%
12mph
WNW
Clear
Humidity
54%
Feels like
18°F
Dew Point
14°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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