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 9:02 pm GMT-4
Now79°78°77°\Cloudy\Cloudy\Feels Like\77°\HHigh\85°\LLow\69°\Chance of Rain\8%\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° |
| 22:00 | Partly Cloudy Night | 76° |
| 23:00 | Partly Cloudy Night | 74° |
| 00:00 | Partly Cloudy Night | 74° |
| 01:00 | Partly Cloudy Night | 73° |
| 02:00 | Partly Cloudy Night | 72° |
| 03:00 | Partly Cloudy Night | 72° |
| 04:00 | Partly Cloudy Night | 71° |
| 05:00 | Partly Cloudy Night | 70° |
| 06:00 | Partly Cloudy Night | 70° |
| 07:00 | Partly Cloudy Day | 70° |
Wind
Wind: 4 mph NNE
Humidity
Humidity: 81%
Air Quality
Air Quality: 63 - Moderate
Dew Point
Dew Point: 71°
Pressure
Pressure: 30.04 in
UV Index
UV Index: 0 of 11
Visibility
10 mi
Moon Phase
Waxing Crescent
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
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.