Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

76°F

24°C

Humidity	65%
Wind Speed	Calm
Barometer	30.03 in (1017.1 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	4 Aug 7:55 am EDT

More Information:

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

Extended Forecast for

Fairfax Station VA

Today
High: 85 °F
Partly Sunny
Tonight
Low: 70 °F
Chance
Showers then
Showers
Likely
Wednesday
High: 85 °F
Showers
Likely
Wednesday Night
Low: 72 °F
Showers
Likely then
Slight Chance
Showers
Thursday
High: 89 °F
Mostly Sunny
Thursday Night
Low: 73 °F
Partly Cloudy
Friday
High: 90 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 71 °F
Chance
T-storms
Saturday
High: 89 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Today

Partly sunny, with a high near 85. East wind around 6 mph.

Tonight

A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then showers likely after 5am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Mostly sunny, with a high near 89. South wind 7 to 10 mph, with gusts as high as 21 mph.

Thursday Night

Partly cloudy, with a low around 73.

Friday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.

Friday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

Saturday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.