Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

73°F

23°C

Humidity	81%
Wind Speed	S 5 mph
Barometer	30.02 in (1016.8 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	27 Aug 12:56 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles SW Clifton VA

Overnight
Low: 70 °F
Slight Chance
T-storms
Thursday
High: 89 °F
Mostly Sunny
then Severe
Thunderstorms
Thursday Night
Low: 68 °F
Severe
Thunderstorms
and Patchy
Fog
Friday
High: 87 °F
Mostly Sunny
Friday Night
Low: 67 °F
Mostly Cloudy
Saturday
High: 86 °F
Mostly Sunny
Saturday Night
Low: 67 °F
Mostly Clear
Sunday
High: 89 °F
Sunny
Sunday Night
Low: 70 °F
Mostly Clear

Detailed Forecast

Overnight

A slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 70. South wind around 6 mph. Chance of precipitation is 20%.

Thursday

A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Mostly sunny, with a high near 89. South wind 5 to 8 mph. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Some of the storms could be severe. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

Friday

Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon.

Friday Night

Mostly cloudy, with a low around 67. Calm wind.

Saturday

Mostly sunny, with a high near 86.

Saturday Night

Mostly clear, with a low around 67.

Sunday

Sunny, with a high near 89.

Sunday Night

Mostly clear, with a low around 70.