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Herndon Junction, VA

87°F
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Herndon Junction

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Herndon Junction, VA Weather
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Winter Center
Today

Hourly

 Daily Radar MinuteCast Monthly Air Quality Health & Activities

12 PM

91°
RealFeel® 101°
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
rain drop 7%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™95°

WindWSW 16 mph

Air QualityFair

Max UV Index10 (Very High)

Wind Gusts28 mph

Humidity59%

Indoor Humidity59% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling34000 ft

1 PM

92°
RealFeel® 102°
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
rain drop 11%
Chevron down
Mostly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™96°

WindWSW 17 mph

Air QualityFair

Max UV Index11 (Extreme)

Wind Gusts31 mph

Humidity55%

Indoor Humidity55% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover23%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

94°
RealFeel® 103°
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
rain drop 19%
Chevron down
Mostly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™97°

WindWSW 16 mph

Air QualityFair

Max UV Index10 (Very High)

Wind Gusts29 mph

Humidity52%

Indoor Humidity52% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover22%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

95°
RealFeel® 102°
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
rain drop 19%
Chevron down
Mostly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™97°

WindWSW 16 mph

Air QualityFair

Max UV Index7 (High)

Wind Gusts30 mph

Humidity50%

Indoor Humidity50% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

96°
RealFeel® 102°
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
rain drop 24%
Chevron down
Mostly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™98°

WindWSW 16 mph

Air QualityFair

Max UV Index5 (Moderate)

Wind Gusts30 mph

Humidity48%

Indoor Humidity48% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

94°
RealFeel® 99°
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
rain drop 43%
Chevron down
Mostly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™97°

WindWSW 16 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts29 mph

Humidity49%

Indoor Humidity49% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

92°
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
rain drop 47%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™95°

WindWSW 14 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts27 mph

Humidity53%

Indoor Humidity53% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover38%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

89°
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.
LEARN MORE
rain drop 51%
Chevron down
Mostly cloudy w/ t-storms
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™92°

WindW 13 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts24 mph

Humidity63%

Indoor Humidity63% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover70%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

8 PM

87°
RealFeel® 94°
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
rain drop 43%
Chevron down
Mostly sunny

RealFeel Shade™94°

WindWSW 10 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts22 mph

Humidity70%

Indoor Humidity70% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

85°
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.
LEARN MORE
rain drop 51%
Chevron down
Partly cloudy w/ t-storms

WindWSW 8 mph

Air QualityFair

Wind Gusts20 mph

Humidity75%

Indoor Humidity75% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Rain0.04 in

Visibility6 mi

Cloud Ceiling30000 ft

10 PM

82°
RealFeel® 88°
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.
LEARN MORE
rain drop 47%
Chevron down
Mostly clear

WindWSW 6 mph

Air QualityFair

Wind Gusts17 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

80°
RealFeel® 85°
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.
LEARN MORE
rain drop 32%
Chevron down
Mostly clear

WindW 6 mph

Air QualityFair

Wind Gusts16 mph

Humidity80%

Indoor Humidity80% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

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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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