# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

As of 9:02 PM EDT

### Now
79°

**Cloudy**  
Feels Like: 77°  
High: 85°  
Low: 69°  
Chance of Rain: 8%  
0 in

## 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 | Partly Cloudy Day   | 70°         |
| 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°         |
| 00:00 | Partly Cloudy Night | 74°         |
| 01:00 | Partly Cloudy Night | 73°         |
| 02:00 | Partly Cloudy Night | 72°         |
| 03:00 | Partly Cloudy Night | 72°         |
| 04:00 | Partly Cloudy Night | 71°         |
| 05:00 | Partly Cloudy Night | 70°         |
| 06:00 | Partly Cloudy Night | 70°         |

### Wind
Wind: 4mph NNE

### Humidity
Humidity: 81%

### Air Quality
Air Quality Index: 61 - Moderate

### Dew Point
Dew Point: 71°

### Pressure
Pressure: 30.04 in

### UV Index
UV Index: 0 of 11

### Visibility
10 mi

### Moon Phase
Waxing Crescent

### Sunrise

### Sunset

# Daily Forecast
| Date       | Condition           | Rain Chance | 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
61 - 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.