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Potomac Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  | | |  |  |  |  | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Partly Cloudy | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C |
| POP: 40% | POP: 50% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 847 AM EDT Thu Sep 03 2026 
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Issued: 846 AM EDT Thu Sep 3 2026
Key Messages
- 1) Slight Risk of severe thunderstorms today and Friday.
- 2) Hot and humid conditions will persist through Friday.
- 3) Drier conditions expected for the Labor Day weekend ahead.
Discussion
... KEY MESSAGE 1...Slight Risk of severe thunderstorms today and Friday.
Multiple thunderstorm clusters will move from Pennsylvania east southeast into northern.northeast Maryland today through tonight along a frontal zone well defined on surface observations and recent NUCAPS data. Given hot and unsta...