# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

As of 9:11 pm GMT-4

### Current Weather
- **Now:** 79°  
- **Feels Like:** 77°  
- **High:** 85°  
- **Low:** 69°  
- **Chance of Rain:** 5%

## 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°        |

### Wind
- **Wind Speed:** 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:** 06:21
- **Sunset:** 20:05

## Daily Forecast
| Date       | Condition         | Precipitation | 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
- **Air Quality 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.

### Health & Activities
- **Grass Pollen:** Moderate
- **Flu Risk:** Very Low