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 >

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Heavy Rain Fog/Mist

75°F

24°C

Humidity 96%
Wind Speed NE 3 mph
Barometer 30.08 in (1019.1 mb)
Dewpoint 74°F (23°C)
Visibility 4.00 mi
Last update 5 Aug 2:56 am EDT
Extended Forecast for

4 Miles ENE Casanova VA

Flood Watch August 5, 04:00am until August 5, 11:00am
Click here for hazard details and duration
Flood Watch
  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am.  Patchy fog. Low around 69. Calm wind.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 2pm.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 88. Heat index values as high as 100. Calm wind becoming south 5 to 7 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 70. South wind 3 to 5 mph.  Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. Heat index values as high as 103. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 71. Southwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

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

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 69. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 91. Chance of precipitation is 40%.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Patchy fog. Low around 69. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, mainly before 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 88. Heat index values as high as 100. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A slight chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 70. South wind 3 to 5 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 103. Southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
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 69. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 70.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Casanova VA
 38.63°N 77.58°W (Elev. 200 ft)
2:22 am EDT Aug 5, 2026
3am EDT Aug 5, 2026-6pm EDT Aug 11, 2026
 
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Additional Resources

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