# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

As of 9:02 pm GMT-4

## Current Conditions
- **Temperature**: 79° (Feels Like 77°)
- **High**: 85°
- **Low**: 69°
- **Chance of Rain**: 8%

## 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°        |

## Wind
- **Speed**: 4 mph NNE

## Humidity
- **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

## Daily Forecast
| Date      | Condition             | Rain Chance | Low  | High |
|-----------|-----------------------|-------------|------|------|
| Tonight   | Scattered Showers Night| 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  
- **Level**: 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.