HTTP/1.1 200 OK Server: Apache X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Content-Security-Policy: default-src 'none'; style-src 'self' code.jquery.com *.arcgis.com cdn.jsdelivr.net 'unsafe-inline'; script-src-elem 'self' cdn.gov.cfigroup.com *.digitalgov.gov *.google-analytics.com *.arcgis.com code.jquery.com www.googletagmanager.com s.go-mpulse.net 'unsafe-inline'; img-src 'self' data: *.ncep.noaa.gov *.noaa.gov *.weather.gov *.arcgisonline.com *.arcgis.com maps.google.com; connect-src 'self' *.google-analytics.com *.arcgis.com opengeo.ncep.noaa.gov *.weather.gov; font-src 'self' cdn.jsdelivr.net; script-src 'unsafe-eval' 'unsafe-inline' Referrer-Policy: strict-origin-when-cross-origin Strict-Transport-Security: max-age=31536000; includeSubdomains; preload; Access-Control-Allow-Origin: * Content-Type: text/html; charset=UTF-8 Cache-Control: max-age=900 Expires: Tue, 30 Jun 2026 07:25:06 GMT Date: Tue, 30 Jun 2026 07:10:06 GMT Content-Length: 27597 Connection: keep-alive National Weather Service
National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 39.05°N 77.49°W (Text-Only)
NWS Forecast for: Ashburn VA
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Last Update: 2:22 am EDT Jun 30, 2026		Print

  • Overnight

    Overnight: Mostly clear, with a low around 67. South wind around 5 mph.

    Low: 67 °F

    Mostly Clear



  • Tuesday

    Tuesday: Sunny, with a high near 90. South wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 90 °F

    Sunny



  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 70. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 70 °F

    Mostly Clear



  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 97 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear



  • Thursday

    Thursday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot



  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear



  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 103. Chance of precipitation is 20%.

    High: 103 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers




    • Overnight: Mostly clear, with a low around 67. South wind around 5 mph.

    Tuesday: Sunny, with a high near 90. South wind 5 to 11 mph, with gusts as high as 18 mph.

    Tuesday Night: Mostly clear, with a low around 70. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Wednesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    Wednesday Night: Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Thursday: Sunny and hot, with a high near 102.

    Thursday Night: Mostly clear, with a low around 77.

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 103. Chance of precipitation is 20%.

    Friday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

    Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 40%.

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 94. Chance of precipitation is 50%.

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 40%.


    Ashburn VA
     39.05°N 77.49°W (Elev. 299 ft)

    Visit your local NWS office at: https://www.weather.gov/lwx