20109 Weather (Manassas, VA)

Weather forecast for: Manassas VA

Last Update: 7:53 am EDT Aug 4, 2026

Today: Partly sunny, with a high near 87. Northeast wind 3 to 6 mph.

Tonight: A chance of showers and thunderstorms, then showers after 4am. Patchy fog after 4am. Low around 69. East wind around 5 mph becoming calm in the evening. 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, then showers likely and possibly a thunderstorm after 4pm. 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 tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. South wind 3 to 5 mph. Chance of precipitation is 30%.

Thursday: Mostly sunny, with a high near 91. South wind 7 to 11 mph, with gusts as high as 21 mph.

Thursday Night: Partly cloudy, with a low around 72.

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

Friday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.

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

Saturday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

Sunday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 20%.

Sunday Night: Partly cloudy, with a low around 71.

Monday: Mostly sunny, with a high near 93.