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

77°

HHigh

83°

LLow

68°

Chance of Rain

7%

0 in](/content/en-FM/us/virginia/herndon/postcode/20170/hourbyhour/index.html)

Today's outlook

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

Time Condition Temperature
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°
06:21 Sunrise -
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°
20:05 Sunset -
21:00 Cloudy 77°

Wind

Wind: 4 mph N
humidity: 81%
Air Quality: 63 - Moderate
Dew Point: 71°
pressure: 30.05 in
Uv Index: 0 of 11
Visibility: 10 mi
Moon Phase: Waxing Crescent

Daily Forecast

Date Description Chance of Precipitation Low High
Tonight Partly Cloudy Night 8% 68° -
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.

Health & Activities