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Herndon, VA

81°F
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Herndon, VA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities
Wednesday, August 12

Day

8/12
89°Hi
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
Sunshine mixing with clouds and humid; a thunderstorm in spots in the afternoon

Max UV Index9.0 (Very High)

AccuLumen Brightness Index™8 (Bright)

WindWNW 7 mph

Wind Gusts10 mph

Probability of Precipitation55%

Probability of Thunderstorms33%

Precipitation0.05 in

Rain Amount0.05 in

Total Hours of Precipitation0.5

Total Hours of Rain0.5

Cloud Cover45%

Morning

Afternoon

Night

8/12
70°Lo
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Partly cloudy and humid with a thunderstorm in parts of the area

WindWNW 5 mph

Wind Gusts7 mph

Probability of Precipitation55%

Probability of Thunderstorms33%

Precipitation0.08 in

Rain Amount0.08 in

Total Hours of Precipitation1

Total Hours of Rain1

Cloud Cover45%

Evening

Overnight

Sun & Moon

13 hrs 49 mins
Rise 6:20 AM
Set 8:09 PM
New Moon
Rise 6:01 AM
Set 8:15 PM

Temperature History

8/12
High
Low
Forecast
89°
70°
Average
87°
66°
Last Year
90°
68°
Record
100°
2021
51°
1962

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World North America United States Virginia Herndon

Weather Near Herndon:

  • Alexandria, VA
  • Germantown, MD
  • Washington, DC
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