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Herndon, VA

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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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Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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5 PM

85°

RealFeel® 92°

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.

1%

Partly sunny

RealFeel Shade™88°

Heat Index89°

WindESE 6 mph

Air QualityFair

Max UV Index2.7 (Moderate)

Wind Gusts8 mph

Humidity58%

Indoor Humidity58% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling29900 ft

6 PM

84°

RealFeel® 89°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

1%

Partly sunny

RealFeel Shade™86°

Heat Index88°

WindESE 6 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts7 mph

Humidity62%

Indoor Humidity62% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling29900 ft

7 PM

82°

RealFeel® 86°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

1%

Partly sunny

RealFeel Shade™86°

Heat Index86°

WindSE 6 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts7 mph

Humidity66%

Indoor Humidity66% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling29900 ft

8 PM

80°

RealFeel® 83°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

1%

Cloudy

RealFeel Shade™83°

Heat Index83°

WindSE 6 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts6 mph

Humidity69%

Indoor Humidity69% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling14700 ft

9 PM

78°

RealFeel® 81°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

1%

Mostly cloudy

WindSE 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity75%

Indoor Humidity75% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover79%

Visibility10 mi

Cloud Ceiling14700 ft

10 PM

76°

RealFeel® 79°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

1%

Intermittent clouds

WindSE 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity81%

Indoor Humidity81% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover69%

Visibility10 mi

Cloud Ceiling14700 ft

11 PM

75°

RealFeel® 78°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

1%

Intermittent clouds

WindSE 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity84%

Indoor Humidity84% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling14700 ft

Hourly Weather Forecast for Herndon

AccuWeather's hourly forecast for Herndon provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 85° with a RealFeel® of 92°, partly sunny with a 1% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 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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