National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Manassas, Manassas Regional Airport/Harry P. Davis Field (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

85°F

29°C

Humidity 59%
Wind Speed SE 8 mph
Barometer 30.15 in (1021.3 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 11 Aug 5:56 pm EDT
Extended Forecast for

Manassas VA

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 70. Southeast wind 5 to 7 mph becoming calm in the evening.

    Low: 70 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 3pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 91 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. Southeast wind around 6 mph becoming calm in the evening.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 92 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 70. Southeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms after 3pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 73. Southeast wind around 6 mph becoming calm in the evening.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 72.
Monday
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:
Manassas VA
 38.76°N 77.51°W (Elev. 233 ft)
Last Update:
4:30 pm EDT Aug 11, 2025
Forecast Valid:
6pm EDT Aug 11, 2025-6pm EDT Aug 18, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation