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 9:11 pm GMT-4

Now 79° 78° 77°
Cloudy
Cloudy
Feels Like
77°
H High
85°
L Low
69°
Chance of Rain
5%
0 in

Today's outlook

Tonight's low temperature will be nearly the same as 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°
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°

Wind Wind 4 mph N

Humidity 81%
Air Quality 63 - Moderate
Dew Point 71°
Pressure 30.04 in
UV Index 0 of 11
Visibility 10 mi
Waxing Crescent Moon Phase

Sunrise

Sunset

Daily Forecast

Tonight: Scattered Showers Night 39%, Showers Early, 69°, 85°
Sat 15: Partly Cloudy Day 7%, Partly Cloudy, 73°, 87°
Sun 16: Thunderstorms 89%, T-Storms, 74°, 81°
Mon 17: Partly Cloudy Day 15%, Partly Cloudy, 68°, 90°
Tue 18: Mostly Clear Day 5%, Mostly Sunny, 65°, 85°
Wed 19: Mostly Clear Day 7%, Mostly Sunny, 72°, 88°
Thu 20: Scattered Thunderstorms 50%, PM T-Storms, 65°, 87°

Air Quality Index

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

Grass: Seasonal Allergies and Pollen Count Forecast, Grass pollen is moderate in your area.
Flu: Cold & Flu Forecast, Flu risk is very low in your area.