# Herndon Weather

Location

Herndon, 20170, Virginia, United States

·

As of 9:11 pm GMT-4

Now79°78°77°  
Cloudy  
Cloudy  
Feels Like  
77°  
High  
83°  
Low  
68°  
Chance of Rain  
5%  
0 in

## Today's outlook

Tonight's low temperature will be nearly the same as last night's.

| 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°         |
| 06:21 | Sunrise            |             |
| 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°         |
| 20:05 | Sunset             |             |
| 21:00 | Cloudy             | 77°         |
| 22:00 | Partly Cloudy Night | 76°         |
| 23:00 | Partly Cloudy Night | 75°         |

Wind

4mph N

Humidity

81%

Air Quality

63 - Moderate

Dew Point

71°

Pressure

30.04in

UV Index

0 of 11

Visibility

10 mi

Moon Phase

Waxing Crescent

Sunrise

Sunset

# Daily Forecast

| Date    | Condition            | Chance of Rain | Low | High |
|---------|----------------------|----------------|-----|------|
| Tonight | Partly Cloudy Night  | 8%             | 68° | 83°  |
| Sat 15  | Mostly Clear Day     | 7%             | 73° | 87°  |
| Sun 16  | Thunderstorms        | 81%            | 73° | 78°  |
| Mon 17  | Partly Cloudy Day    | 23%            | 68° | 89°  |
| Tue 18  | Mostly Clear Day     | 5%             | 65° | 85°  |
| Wed 19  | Mostly Clear Day     | 7%             | 71° | 88°  |
| Thu 20  | Scattered Thunderstorms| 52%            | 66° | 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.

## Health & Activities

### Grass

Seasonal Allergies and Pollen Count Forecast  
Grass pollen is moderate in your area

### Flu

Cold & Flu Forecast  
Flu risk is very low in your area