# Herndon Weather

Location

Herndon, 20170, Virginia, United States

·

As of 9:11 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 | 75°         |

### Current Conditions

- **Wind:** 4 mph N  
- **Humidity:** 81%  
- **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    | 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

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.