# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

·

As of 9:02 pm GMT-4

## Today's outlook
Tonight's low temperature will be nearly the same as 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°         |
| 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°         |

### Current Conditions
- Temperature: 77°
- Condition: Cloudy
- Wind: 4 mph NNE
- Humidity: 81%
- Air Quality: 63 - Moderate
- Dew Point: 71°
- Pressure: 30.04 in
- Visibility: 10 mi
- Moon Phase: Waxing Crescent
- Sunrise: 06:21
- Sunset: 20:05

## Daily Forecast
| Date    | Condition          | Chance of Rain | Low  | High |
|---------|--------------------|-----------------|------|------|
| Tonight | Scattered Showers  | 39%             | 69°  | 85°  |
| Sat 15  | Partly Cloudy Day  | 7%              | 73°  | 87°  |
| Sun 16  | Thunderstorms      | 89%             | 74°  | 81°  |
| Mon 17  | Partly Cloudy Day  | 15%             | 68°  | 90°  |
| Tue 18  | Mostly Clear Day    | 5%              | 65°  | 85°  |
| Wed 19  | Mostly Clear Day    | 7%              | 72°  | 88°  |
| Thu 20  | Scattered Thunderstorms | 50%           | 65°  | 87°  |

## Air Quality Index
- Index: 63 (Moderate)
- Description: 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 is moderate in your area.
- Flu risk is very low in your area.