# Herndon Weather

## Location
Herndon, 20170, Virginia, United States

·

As of 21:11 GMT-4

Now 79° 78° 77°\
\
Cloudy\
\
Cloudy\
\
Feels Like\
\
77°\
\
HHigh\
\
85°\
\
LLow\
\
69°\
\
Chance of Rain\
\
5%\
\
0 in

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

### Hourly Forecast
- 0:00: Cloudy, 77°
- 1:00: Mostly Cloudy Night, 77°
- 2:00: Mostly Cloudy Night, 76°
- 3:00: Mostly Cloudy Night, 76°
- 4:00: Mostly Cloudy Night, 77°
- 5:00: Mostly Cloudy Night, 76°
- 6:00: Mostly Cloudy Night, 75°
- 6:21: Sunrise
- 7:00: Cloudy, 74°
- 8:00: Partly Cloudy Day, 76°
- 9:00: 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

### Wind
Wind: 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 and Sunset
- Sunrise: 6:21
- Sunset: 20:05

## Daily Forecast
- Tonight: Scattered Showers Night 39%, Showers Early, 69° / 85°
- Sat 15: Partly Cloudy Day 7%, Partly Cloudy, 73° / 87°
- Sun 16: Thunderstorms 89%, T-Storms, 74° / 81°
- Mon 17: Partly Cloudy Day 15%, Partly Cloudy, 68° / 90°
- Tue 18: Mostly Clear Day 5%, Mostly Sunny, 65° / 85°
- Wed 19: Mostly Clear Day 7%, Mostly Sunny, 72° / 88°
- Thu 20: Scattered Thunderstorms 50%, PM T-Storms, 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.

## 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.