Current Conditions

Herndon, Virginia

76°F24°C
Drizzle

Wind

W 5 mph7 km/h

Humidity

76%

Cloud Cover

53%

As of Thursday, August 13, 2026 at 3:27 AM EDT

Today's Outlook

Day

Partly cloudy and hot, with a high of 94°F34°C and morning low of 76°F25°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h.

Night

Mostly cloudy, with a low around 74°F24°C. Light wind from the NW around 4 mph7 km/h. 12% chance of drizzle overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 94°F34°CLow 74°F24°CPrecip 0.01 in0.2 mm12%Cloud 57%Wind NW 5 mph9 km/hThursday: Partly cloudy and hot, with a high of 94°F34°C and morning low of 76°F25°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. Thursday Night: Mostly cloudy, with a low around 74°F24°C. Light wind from the NW around 4 mph7 km/h. 12% chance of drizzle overnight.
Light RainHigh 86°F30°CFeels 89°F31°CLow 75°F24°CPrecip 0.06 in1.5 mm29%Cloud 85%Wind NNW 3 mph5 km/hFriday: Overcast and hot, with a high of 86°F30°C and morning low of 77°F25°C. Light wind from the NNW around 3 mph5 km/h. 29% chance of light rain throughout the day. Humid. Friday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the NNW around 4 mph6 km/h.
DrizzleHigh 89°F32°CLow 73°F23°CPrecip 0.03 in0.8 mm10%Cloud 71%Wind E 4 mph7 km/hSaturday: Mostly cloudy and hot, with a high of 89°F32°C and morning low of 75°F24°C. Light wind from the ENE around 4 mph6 km/h. 10% chance of drizzle throughout the day. Saturday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the ESE around 5 mph7 km/h.
Light RainHigh 85°F30°CFeels 93°F34°CLow 75°F24°CPrecip 0.4 in10.2 mm63%Cloud 87%Wind S 6 mph10 km/hSunday: Overcast and warm, with a high of 85°F30°C and morning low of 76°F24°C — feels like 93°F34°C. Breezy from the S at 7 mph11 km/h. 63% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Overcast, with a low around 75°F24°C. Light wind from the S around 6 mph9 km/h. 51% chance of light rain throughout the night.
ShowersHigh 90°F32°CFeels 96°F35°CLow 76°F24°CPrecip 0.14 in3.6 mm43%Cloud 62%Wind WNW 6 mph10 km/hMonday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 77°F25°C. Breezy from the NW at 7 to 8 mph11 to 12 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Mostly cloudy, with a low around 76°F24°C. Light wind from the WNW around 6 mph9 km/h. 29% chance of showers throughout the night.
ClearHigh 88°F31°CLow 72°F22°CPrecip 0.01 in0.2 mm6%Cloud 35%Wind NNW 5 mph8 km/hTuesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C. Light wind from the NNW around 5 mph8 km/h. Tuesday Night: Partly cloudy, with a low around 72°F22°C. Light wind from the NNW around 5 mph8 km/h.
DrizzleHigh 91°F33°CLow 70°F21°CPrecip 0.02 in0.5 mm13%Cloud 42%Wind SSW 5 mph7 km/hWednesday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C. Light wind from the SW around 4 mph7 km/h. 13% chance of drizzle in the afternoon. Wednesday Night: Partly cloudy, with a low around 70°F21°C. Light wind from the S around 5 mph8 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayAug 1394°F34°C74°F24°C0.01 in0.2 mm· 12%57%DrizzleNW 5 mph9 km/h
FridayAug 1486°F30°C
Feels 89°F31°C
75°F24°C0.06 in1.5 mm· 29%85%Light RainNNW 3 mph5 km/h
SaturdayAug 1589°F32°C73°F23°C0.03 in0.8 mm· 10%71%DrizzleE 4 mph7 km/h
SundayAug 1685°F30°C
Feels 93°F34°C
75°F24°C0.4 in10.2 mm· 63%87%Light RainS 6 mph10 km/h
MondayAug 1790°F32°C
Feels 96°F35°C
76°F24°C0.14 in3.6 mm· 43%62%ShowersWNW 6 mph10 km/h
TuesdayAug 1888°F31°C72°F22°C0.01 in0.2 mm· 6%35%ClearNNW 5 mph8 km/h
WednesdayAug 1991°F33°C70°F21°C0.02 in0.5 mm· 13%42%DrizzleSSW 5 mph7 km/h
ThursdayAug 2093°F34°C
Feels 96°F36°C
75°F24°C0.06 in1.4 mm· 20%54%ShowersWSW 6 mph9 km/h
FridayAug 2188°F31°C73°F23°C0.12 in3.1 mm· 22%53%ShowersNNW 5 mph9 km/h
SaturdayAug 2285°F30°C69°F21°C0.1 in2.5 mm· 22%49%ShowersNW 5 mph8 km/h
SundayAug 2386°F30°C68°F20°C0.09 in2.4 mm· 14%45%DrizzleNW 5 mph8 km/h
MondayAug 2487°F31°C68°F20°C0.09 in2.4 mm· 14%44%DrizzleW 5 mph8 km/h
TuesdayAug 2587°F31°C69°F20°C0.06 in1.6 mm· 15%43%DrizzleWNW 5 mph8 km/h
WednesdayAug 2687°F31°C69°F21°C0.07 in1.7 mm· 14%45%DrizzleWNW 5 mph8 km/h
ThursdayAug 2786°F30°C69°F21°C0.07 in1.8 mm· 16%47%DrizzleNW 5 mph8 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 38.9695°N, 77.3861°W·Elevation: 110m·Timezone: America/New_York·Population: 24,568