10-day weather forecast for Herndon, 20170, Virginia, United States - The Weather Channel | weather.com
Daily Forecast
Location
Herndon, 20170, Virginia, United States
·
As of 9:22 pm GMT-4
| Day | Conditions | Temperature | Low | High | Wind |
|---|---|---|---|---|---|
| Tonight | Partly Cloudy | 68° | 68° | 83° | 4mph |
| Sat 15 | Mostly Clear | 73° | 73° | 87° | 5mph |
| Sun 16 | Thunderstorms | 73° | 73° | 78° | 11mph |
| Mon 17 | Partly Cloudy | 68° | 68° | 89° | 10mph |
| Tue 18 | Mostly Clear | 65° | 65° | 85° | 7mph |
| Wed 19 | Mostly Clear | 71° | 71° | 88° | 7mph |
| Thu 20 | Scattered Thunderstorms | 66° | 66° | 87° | 8mph |
| Fri 21 | Partly Cloudy | 66° | 66° | 82° | 7mph |
| Sat 22 | Showers | 66° | 66° | 78° | 7mph |
| Sun 23 | Showers | 66° | 66° | 79° | 7mph |
| Mon 24 | Partly Cloudy | 67° | 67° | 85° | 6mph |
| Tue 25 | Partly Cloudy | 69° | 69° | 88° | 6mph |
| Wed 26 | Partly Cloudy | 69° | 69° | 88° | 8mph |
| Thu 27 | Partly Cloudy | 66° | 66° | 86° | 8mph |
| Fri 28 | Partly Cloudy | 66° | 66° | 83° | 7mph |
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.