Current Conditions

Vienna, Virginia

78°F25°C

Showers

Wind

SE 4 mph7 km/h

Humidity

81%

Cloud Cover

64%

As of Wednesday, September 2, 2026 at 8:25 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 76°F24°C. Light wind from the SE around 4 mph7 km/h. 12% chance of drizzle overnight.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Showers	High 88°F31°CFeels 95°F35°C	Low 76°F24°C	Precip 0.06 in1.4 mm63%	Cloud 68%	Wind SE 4 mph7 km/h	Wednesday: Mostly cloudy and hot, with a high of 88°F31°C — feels like 95°F35°C. Light wind from the ESE around 4 mph7 km/h. 63% chance of light rain in the afternoon. Heavy, humid air. Wednesday Night: Mostly cloudy, with a low around 76°F24°C. Light wind from the SE around 4 mph7 km/h. 12% chance of drizzle overnight.
Light Rain	High 93°F34°CFeels 99°F37°C	Low 74°F23°C	Precip 0.05 in1.2 mm29%	Cloud 71%	Wind SSW 4 mph7 km/h	Thursday: Mostly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C — feels like 99°F37°C. Light wind from the SW around 4 mph7 km/h. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 74°F23°C. Light wind from the S around 4 mph7 km/h. 29% chance of showers overnight.
Showers	High 94°F34°CFeels 100°F38°C	Low 75°F24°C	Precip 0.08 in2 mm52%	Cloud 53%	Wind WNW 5 mph8 km/h	Friday: Mostly cloudy and hot, with a high of 94°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the NW at 6 to 8 mph10 to 12 km/h. 52% chance of showers in the afternoon. Heat risk in the afternoon. Friday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the WNW around 4 mph7 km/h. 25% chance of drizzle throughout the night.
Drizzle	High 86°F30°C	Low 73°F23°C	Precip 0.02 in0.5 mm10%	Cloud 45%	Wind N 6 mph9 km/h	Saturday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 74°F23°C. Light wind from the N around 6 mph10 km/h. Saturday Night: Partly cloudy, with a low around 73°F23°C. Light wind from the N around 6 mph9 km/h. 10% chance of drizzle overnight.
Drizzle	High 82°F28°C	Low 67°F19°C	Precip 0 in0.1 mm10%	Cloud 35%	Wind NE 5 mph9 km/h	Sunday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Light wind from the NE around 6 mph9 km/h. 10% chance of drizzle. Sunday Night: Mostly clear, with a low around 67°F19°C. Light wind from the NE around 5 mph8 km/h.
Partly Cloudy	High 83°F29°C	Low 64°F18°C	Precip 0 in0.1 mm2%	Cloud 45%	Wind SE 4 mph6 km/h	Monday: Mostly cloudy and warm, with a high of 83°F29°C and morning low of 66°F19°C. Light wind from the ESE around 3 mph5 km/h. Monday Night: Partly cloudy, with a low around 64°F18°C. Light wind from the SE around 4 mph7 km/h.
Partly Cloudy	High 87°F31°C	Low 64°F18°C	Precip 0 in0 mm—	Cloud 54%	Wind S 5 mph8 km/h	Tuesday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 66°F19°C. Light wind from the S around 4 mph6 km/h. Tuesday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the SSE around 5 mph9 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	88°F31°C Feels 95°F35°C	76°F24°C	0.06 in1.4 mm· 63%	68%	Showers	SE 4 mph7 km/h
DayMostly cloudy and hot, with a high of 88°F31°C — feels like 95°F35°C. Light wind from the ESE around 4 mph7 km/h. 63% chance of light rain in the afternoon. Heavy, humid air. NightMostly cloudy, with a low around 76°F24°C. Light wind from the SE around 4 mph7 km/h. 12% chance of drizzle overnight.
	ThursdaySep 3	93°F34°C Feels 99°F37°C	74°F23°C	0.05 in1.2 mm· 29%	71%	Light Rain	SSW 4 mph7 km/h
DayMostly cloudy and hot, with a high of 93°F34°C and morning low of 75°F24°C — feels like 99°F37°C. Light wind from the SW around 4 mph7 km/h. Heat risk in the afternoon. NightMostly cloudy, with a low around 74°F23°C. Light wind from the S around 4 mph7 km/h. 29% chance of showers overnight.
	FridaySep 4	94°F34°C Feels 100°F38°C	75°F24°C	0.08 in2 mm· 52%	53%	Showers	WNW 5 mph8 km/h
DayMostly cloudy and hot, with a high of 94°F34°C and morning low of 77°F25°C — feels like 100°F38°C. Breezy from the NW at 6 to 8 mph10 to 12 km/h. 52% chance of showers in the afternoon. Heat risk in the afternoon. NightMostly cloudy, with a low around 75°F24°C. Light wind from the WNW around 4 mph7 km/h. 25% chance of drizzle throughout the night.
	SaturdaySep 5	86°F30°C	73°F23°C	0.02 in0.5 mm· 10%	45%	Drizzle	N 6 mph9 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 74°F23°C. Light wind from the N around 6 mph10 km/h. NightPartly cloudy, with a low around 73°F23°C. Light wind from the N around 6 mph9 km/h. 10% chance of drizzle overnight.
	SundaySep 6	82°F28°C	67°F19°C	0 in0.1 mm· 10%	35%	Drizzle	NE 5 mph9 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 68°F20°C. Light wind from the NE around 6 mph9 km/h. 10% chance of drizzle. NightMostly clear, with a low around 67°F19°C. Light wind from the NE around 5 mph8 km/h.
	MondaySep 7	83°F29°C	64°F18°C	0 in0.1 mm· 2%	45%	Partly Cloudy	SE 4 mph6 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 66°F19°C. Light wind from the ESE around 3 mph5 km/h. NightPartly cloudy, with a low around 64°F18°C. Light wind from the SE around 4 mph7 km/h.
	TuesdaySep 8	87°F31°C	64°F18°C	0 in0 mm· —	54%	Partly Cloudy	S 5 mph8 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 66°F19°C. Light wind from the S around 4 mph6 km/h. NightMostly cloudy, with a low around 64°F18°C. Light wind from the SSE around 5 mph9 km/h.
	WednesdaySep 9	92°F33°C	69°F20°C	0 in0.1 mm· 4%	47%	Partly Cloudy	SSW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 92°F33°C and morning low of 70°F21°C. Light wind from the SSW around 6 mph9 km/h. NightPartly cloudy, with a low around 69°F20°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
	ThursdaySep 10	96°F35°C	75°F24°C	0.02 in0.6 mm· 16%	44%	Drizzle	WSW 7 mph11 km/h
DayPartly cloudy and hot, with a high of 96°F35°C and morning low of 77°F25°C. Breezy from the W at 7 to 8 mph11 to 12 km/h. 16% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 75°F24°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. 12% chance of drizzle in the evening.
	FridaySep 11	88°F31°C	74°F23°C	0.08 in2 mm· 14%	46%	Drizzle	NW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 74°F23°C. Breezy from the NW at 6 to 7 mph10 to 11 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 74°F23°C. Light wind from the NW around 6 mph10 km/h. 14% chance of drizzle throughout the night.
	SaturdaySep 12	86°F30°C	69°F20°C	0.05 in1.2 mm· 13%	48%	Drizzle	S 5 mph9 km/h
DayMostly cloudy and warm, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the SW around 5 mph9 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 69°F20°C. Light wind from the SSE around 6 mph9 km/h.
	SundaySep 13	88°F31°C	69°F21°C	0.06 in1.6 mm· 9%	45%	Partly Cloudy	SSW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 70°F21°C. Light wind from the SW around 6 mph9 km/h. NightPartly cloudy, with a low around 69°F21°C. Light wind from the S around 6 mph9 km/h.
	MondaySep 14	88°F31°C	71°F22°C	0.04 in1 mm· 14%	44%	Drizzle	SW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 72°F22°C. Light wind from the WSW around 6 mph9 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 71°F22°C. Light wind from the S around 6 mph9 km/h.
	TuesdaySep 15	86°F30°C	70°F21°C	0.07 in1.9 mm· 15%	44%	Drizzle	SE 6 mph9 km/h
DayPartly cloudy and hot, with a high of 86°F30°C and morning low of 71°F21°C. Light wind from the NW around 5 mph9 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SE around 6 mph9 km/h. 15% chance of drizzle throughout the night.
	WednesdaySep 16	84°F29°C	68°F20°C	0.08 in2 mm· 20%	43%	Drizzle	SE 6 mph9 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 69°F20°C. Light wind from the E around 5 mph9 km/h. 20% chance of drizzle throughout the day. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SE around 6 mph9 km/h. 14% chance of drizzle throughout the night.

Nearby Cities

Tysons2 mi4 km Oakton2 mi4 km Merrifield3 mi4 km Wolf Trap3 mi5 km Idylwood3 mi5 km Fairfax4 mi7 km

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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 38.9012°N, 77.2653°W·Elevation: 109m·Timezone: America/New_York·Population: 16,522