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Herndon Junction, VA

86°F
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Herndon Junction, VA Weather
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Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Thursday, July 17

Current Weather

10:53 AM

86°F
Sunny
RealFeel® 105°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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™ 95°
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®
105°
RealFeel Shade™
95°
Max UV Index
7 High
Wind
SSW 3 mph
Wind Gusts
8 mph
Humidity
75%
Indoor Humidity
75% (Extremely Humid)
Dew Point
77° F
Pressure
↔ 29.94 in
Cloud Cover
0%
Visibility
10 mi
Cloud Ceiling
40000 ft

Day

7/17
96°Hi
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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™ 100°
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
Partly sunny, hot and humid; an afternoon thunderstorm; danger of dehydration and heatstroke if outside for extended periods of time
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

Max UV Index11 (Extreme)

AccuLumen Brightness Index™9 (Very Bright)

WindWSW 9 mph

Wind Gusts27 mph

Probability of Precipitation55%

Probability of Thunderstorms42%

Precipitation0.05 in

Rain0.05 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover20%

Morning

Afternoon

Night

7/17
75°Lo
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear and humid
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

WindWNW 6 mph

Wind Gusts17 mph

Probability of Precipitation19%

Probability of Thunderstorms5%

Precipitation0.00 in

Cloud Cover9%

Evening

Overnight

Sun & Moon

14 hrs 36 mins
Rise 5:58 AM
Set 8:34 PM
Last Quarter
Rise --
Set 1:16 PM

Temperature History

7/17
High
Low
Forecast
96°
75°
Average
88°
67°
Last Year
98°
75°
Record
100°
1988
55°
2014

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World North America United States Virginia Herndon Junction

Weather Near Herndon Junction:

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