# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

**As of 21:11 GMT-4**  
**Now:** 79°  
**Feels Like:** 77°  
**High:** 83°  
**Low:** 68°  
**Chance of Rain:** 5%

## Today's outlook
Tonight's low temperature will be nearly the same as last night's.

### Hourly Forecast
| Time | Conditions          | Temperature |
|------|---------------------|-------------|
| 0:00 | Cloudy              | 77°         |
| 1:00 | Mostly Cloudy Night  | 77°         |
| 2:00 | Mostly Cloudy Night  | 76°         |
| 3:00 | Mostly Cloudy Night  | 76°         |
| 4:00 | Mostly Cloudy Night  | 77°         |
| 5:00 | Mostly Cloudy Night  | 76°         |
| 6:00 | Mostly Cloudy Night  | 75°         |
| 7:00 | Cloudy              | 74°         |
| 8:00 | Partly Cloudy Day    | 76°         |
| 9:00 | 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°         |
| 21:00| Cloudy              | 77°         |

### Current Conditions
- **Wind:** 4 mph N  
- **Humidity:** 81%  
- **Air Quality Index:** 63 - Moderate  
- **Dew Point:** 71°  
- **Pressure:** 30.04 in  
- **UV Index:** 0 of 11  
- **Visibility:** 10 mi  
- **Moon Phase:** Waxing Crescent
- **Sunrise:** 6:21
- **Sunset:** 20:05

# Daily Forecast
| Date      | Conditions           | Rain Chance | 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 sensitive individuals.

## Health & Activities
- **Grass Pollen Forecast:** Moderate in your area  
- **Flu Risk:** Very low in your area