Weather forecast and conditions for Herndon, 20170, Virginia, United States - The Weather Channel | weather.com

Herndon Weather

Location
Herndon, 20170, Virginia, United States
·
As of 9:22 pm GMT-4

Now79°78°77°\
\
Mostly Cloudy Night\
\
Mostly Cloudy\
\
Feels Like\
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77°\
\
HHigh\
\
83°\
\
LLow\
\
68°\
\
Chance of Rain\
\
7%\
\
0 in

Today's outlook

Tonight's low temperature will be a little cooler than last night's.

Hourly Forecast

Time Condition Temp
00:00 Cloudy 77°
01:00 Mostly Cloudy Night 77°
02:00 Mostly Cloudy Night 76°
03:00 Mostly Cloudy Night 76°
04:00 Mostly Cloudy Night 77°
05:00 Mostly Cloudy Night 76°
06:00 Mostly Cloudy Night 75°
07:00 Cloudy 74°
08:00 Partly Cloudy Day 76°
09:00 Mostly Cloudy Day 77°
10:00 Mostly Cloudy Day 77°
11:00 Cloudy 79°
12:00 Cloudy 78°
13:00 Cloudy 77°
14:00 Mostly Cloudy Day 76°
15:00 Mostly Cloudy Day 78°
16:00 Partly Cloudy Day 82°
17:00 Mostly Cloudy Day 82°
18:00 Mostly Cloudy Day 82°
19:00 Mostly Cloudy Day 80°
20:00 Cloudy 78°
21:00 Cloudy 77°

Wind

Daily Forecast

Date Condition Rain Chance Low High
Tonight Partly Cloudy Night 8% 68° 83°
Sat 15 Mostly Clear Day 7% 73° 87°
Sun 16 Thunderstorms 81% 73° 78°
Mon 17 Partly Cloudy Day 23% 68° 89°
Tue 18 Mostly Clear Day 5% 65° 85°
Wed 19 Mostly Clear Day 7% 71° 88°
Thu 20 Scattered Thunderstorms 52% 66° 87°

Air Quality Index

63
Moderate
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
See details

Health & Activities