Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Rain Fog/Mist

74°F

23°C

Humidity 97%
Wind Speed E 6 mph
Barometer 30.09 in (1018.6 mb)
Dewpoint 73°F (23°C)
Visibility 6.00 mi
Last update 5 Aug 6:52 am EDT
Extended Forecast for

Catharpin VA

  • Today

    Today: Showers and thunderstorms likely, mainly before 2pm.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 87. Calm wind becoming south 5 to 7 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 71. South wind around 6 mph.  Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 90. Heat index values as high as 102. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am.  Partly cloudy, with a low around 71. West wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm.  Mostly sunny, with a high near 90. Calm wind becoming southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 60%.

    High: 90 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am.  Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Chance of precipitation is 50%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 2pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 87. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 71. South wind around 6 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. Heat index values as high as 102. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Friday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Catharpin VA
 38.86°N 77.58°W (Elev. 295 ft)
4:53 am EDT Aug 5, 2026
7am EDT Aug 5, 2026-6pm EDT Aug 11, 2026
 
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