# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

As of 9:11 pm GMT-4

## Today's outlook
Tonight's low temperature will be a little cooler than 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°         |
| 21:00 | Cloudy              | 77°         |

### Wind
- Wind: 4 mph N

### Humidity
- Humidity: 81%

### Air Quality
- 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
- Moon Phase: Waxing Crescent

### Sunrise/Sunset
- Sunrise: 06:21
- Sunset: 20:05

# Daily Forecast
| Date        | Condition       | Chance of Rain | High | Low |
|-------------|-----------------|----------------|------|-----|
| Tonight     | Partly Cloudy   | 8%             | 83°  | 68° |
| Sat 15     | Mostly Sunny    | 7%             | 87°  | 73° |
| Sun 16     | Thunderstorms    | 81%            | 78°  | 73° |
| Mon 17     | Partly Cloudy   | 23%            | 89°  | 68° |
| Tue 18     | Mostly Sunny    | 5%             | 85°  | 65° |
| Wed 19     | Mostly Sunny    | 7%             | 88°  | 71° |
| Thu 20     | PM T-Storms    | 52%            | 87°  | 66° |

## 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 Pollen**: Grass pollen is moderate in your area.
- **Flu Risk**: Flu risk is very low in your area.