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Manassas Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Clearing | Sunny | Mostly Clear | Chance of T-Storm | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 69°FLo: 21°C |
| POP: 50% | POP: 50% | POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 707 AM EDT Sat Sep 12 2026 
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Issued: 715 AM EDT Sat Sep 12 2026
Key Messages
- 1) The risk for showers and thunderstorms will continue through the weekend.
Discussion
... KEY MESSAGE 1: The risk for showers and thunderstorms will continue through the weekend.
Today: Satellite water vapor showed a mid-level trough extending across the Mississippi River valley, tracking east. East of the trough, a plume of deep moisture covered a large area from the Gulf across the Southeast U.S., PW values between 2-2.2" across SE GA/SC. RUC40 guidance indicates a few vort maxes wi...