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
Current Conditions
- Now: 79°
- Cloudy
- Feels Like: 77°
- High: 85°
- Low: 69°
- Chance of Rain: 5%
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 | - |
Wind
- Speed: 4 mph N
Humidity
- Humidity: 81%
Air Quality
- Index: 63 - Moderate
Dew Point
- Dew Point: 71°
Pressure
- Pressure: 30.04 in
UV Index
- UV Index: 0 of 11
Visibility
- Visibility: 10 mi
Moon Phase
Phase: Waxing Crescent
Sunrise: 06:21
Sunset: 20:05
Daily Forecast
- Tonight: Scattered Showers Night 39%, Showers Early, 69°, 85°
- Sat 15: Partly Cloudy Day, 7%, 73°, 87°
- Sun 16: Thunderstorms, 89%, 74°, 81°
- Mon 17: Partly Cloudy Day, 15%, 68°, 90°
- Tue 18: Mostly Clear Day, 5%, 65°, 85°
- Wed 19: Mostly Clear Day, 7%, 72°, 88°
- Thu 20: Scattered Thunderstorms, 50%, 65°, 87°
Air Quality Index
- Index: 63
- Health Concern: 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 Allergies: Grass pollen is moderate in your area
- Flu Risk: Very low in your area