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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Mostly Cloudy

28°C

82°F

Humidity 79%
Wind Speed S 11 km/h
Barometer 1018.8 mb (30.07 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index32°C (89°F)
Last update 13 Jul 9:56 am EDT
Extended Forecast for

Manassas VA

  • Today

    Today: A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 32. Southeast wind 5 to 10 km/h. Chance of precipitation is 30%.

    High: 32 °C

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 5am. Mostly cloudy, with a low around 23. South wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 23 °C

    T-storms
    Likely then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 32. Calm wind becoming south 5 to 8 km/h in the afternoon. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 32 °C

    Chance
    T-storms then
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms before 5am, then a slight chance of showers. Low around 22. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 5 and 7.5 mm possible.

    Low: 22 °C

    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 31. Calm wind becoming south 5 to 8 km/h in the afternoon. Chance of precipitation is 70%.

    High: 31 °C

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.

    Low: 23 °C

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 70%.

    High: 32 °C

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.

    Low: 23 °C

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 34. Chance of precipitation is 60%.

    High: 34 °C

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 32. Southeast wind 5 to 10 km/h. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 5am. Mostly cloudy, with a low around 23. South wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 32. Calm wind becoming south 5 to 8 km/h in the afternoon. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible.
Monday Night
Showers and thunderstorms before 5am, then a slight chance of showers. Low around 22. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 5 and 7.5 mm possible.
Tuesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 31. Calm wind becoming south 5 to 8 km/h in the afternoon. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 34. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 23. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 33. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 32. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Manassas VA
 38.76°N 77.48°W (Elev. 289 m)
Last Update:
10:30 am EDT Jul 13, 2025
Forecast Valid:
10am EDT Jul 13, 2025-6pm EDT Jul 19, 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