# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

As of 9:11 pm GMT-4

**Now** 79° 78° 77°  
**Cloudy**  
**Feels Like** 77°  
**High** 83°  
**Low** 68°  
**Chance of Rain** 5%  
**0 in**

## Today's outlook
Tonight's low temperature will be a little cooler than last night's.

### Hourly Forecast
| 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°         |

### Current Conditions
- **Wind:** 4 mph N
- **Humidity:** 81%
- **Air Quality:** 63 - Moderate
- **Dew Point:** 71°
- **Pressure:** 30.04 in
- **UV Index:** 0 of 11
- **Visibility:** 10 mi
- **Moon Phase:** Waxing Crescent
- **Sunrise:** 06:21
- **Sunset:** 20:05

# Daily Forecast
| Date       | Condition           | Precipitation 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
- **Index:** 63
- **Status:** 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.