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Weather In Herndon, VA
9 am
64°F
Sunny
0% NNE 11.5 mi/h
10 am
68°F
Mostly sunny
0% NNE 13.8 mi/h
11 am
71°F
Mostly sunny
0% NNE 15 mi/h
12 pm
73°F
Mostly sunny
0% NNE 17.3 mi/h
1 pm
76°F
Mostly sunny
0% N 18.4 mi/h
2 pm
78°F
Mostly sunny
7% N 18.4 mi/h
3 pm
79°F
Partly sunny
7% N 18.4 mi/h
4 pm
77°F
Intermittent clouds
7% N 18.4 mi/h
5 pm
76°F
Cloudy
7% N 17.3 mi/h
6 pm
74°F
Cloudy
7% N 13.8 mi/h
7 pm
72°F
Cloudy
5% N 10.4 mi/h
8 pm
70°F
Cloudy
1% N 8.1 mi/h
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Herndon, VA
October 18, 2026 5:22 pm
Mostly cloudy
Low: 60°F / High: 79°F
Max UV Index 9 Very High
Air Quality Good
Wind NNE 15 mi/h
Wind Gust 31.1 mi/h
Probability of Precipitation 25%
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