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
Now79°78°77°
Cloudy
Cloudy
Feels Like
77°
High
83°
Low
68°
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° |
| 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° |
| 22:00 | Partly Cloudy Night | 76° |
| 23:00 | Partly Cloudy Night | 75° |
Wind
4mph N
Humidity
81%
Air Quality
63 - Moderate
Dew Point
71°
Pressure
30.04in
UV Index
0 of 11
Visibility
10 mi
Moon Phase
Waxing Crescent
Sunrise
Sunset
Daily Forecast
| Date | Condition | Chance of Rain | 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.
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