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McComb Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | |  |  |  |  | | |  |  | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Partly Cloudy | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Showers | Chance of Showers | Chance of T-Storm |
| Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C |
| POP: 80% | POP: 70% | POP: 70% | POP: 50% | POP: 70% | POP: 90% | POP: 90% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 233 AM EDT Wed Sep 16 2026 
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Issued: 236 AM EDT Wed Sep 16 2026
Key Messages
1) Periods of showers and thunderstorms continue through Thursday as a front wavers across the Ohio Valley.
2) Unsettled weather pattern continues into the weekend. Heavy rainfall and localized flooding are possible on Saturday.
Discussion
... KEY MESSAGE 1... A cold front will continue to sweep southeast across the region today. Showers and thunderstorms over Lake Erie will eventually move onshore early this morning and sink south across Northern Ohio and Northwest Pennsylvania through...