Herndon, VA Weather Forecast

Today's Weather

Tue, Aug 11

Humid with sun breaking through clouds at times; a stray thunderstorm this afternoon; watch for flooding; downpours can have localized damaging wind gusts Hi: 88°

Tonight: Partly cloudy and humid; an evening thunderstorm followed by a passing shower late; storms can bring flooding downpours and localized damaging wind gusts Lo: 71°

Current Weather

6:19 PM

88°F

RealFeel® 91°

Mostly sunny More Details

Herndon Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

8/11

88° 71°

Humid; a stray p.m. t-storm

Night: An evening thunderstorm

55%

Wed

8/12

89° 70°

Humid; a stray p.m. t-storm

Humid with a t-storm in spots

55%

Thu

8/13

89° 73°

Humid with a thunderstorm

Humid with a stray t-storm

55%

Fri

8/14

83° 65°

A few morning showers; humid

Mainly clear

61%

Sat

8/15

83° 64°

Mostly sunny and less humid

Increasing clouds

Sun

8/16

87° 72°

A p.m. t-storm in spots

Mainly clear and humid

55%

Mon

8/17

90° 64°

A few showers in the morning

Clear

55%

Tue

8/18

86° 66°

Mostly sunny and less humid

Mainly clear

Wed

8/19

87° 64°

Mostly sunny

Mostly clear

Thu

8/20

90° 65°

Sunshine and a few clouds

Clear to partly cloudy

Sun & Moon

13 hrs 51 mins

Rise 6:19 AM

Set 8:10 PM

Waning Crescent

Rise 4:43 AM

Set 7:43 PM

Air Quality

Air Quality Poor

The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.