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Hannibal Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  | |  |  | | |  |  |  | |
| Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Clear | Mostly Sunny | Chance of T-Storm | Showers | Showers Likely | Chance of Showers | Chance of Showers |
| Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C |
| POP: 40% | POP: 50% | POP: 50% | POP: 70% | POP: 70% | POP: 70% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 502 AM EDT Wed Sep 16 2026 
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Instant definitions for any meteorological term.
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Issued: 104 AM EDT Wed Sep 16 2026
Key Messages
1) Shower and thunderstorm chances linger today and tomorrow with a low risk of localized flooding and a non- zero chance of severe weather.
2) Unsettled weather returns late Saturday into next week.
Discussion
... KEY MESSAGE 1... In line with the prior forecast update, this one maintains the earlier arrival time of a cold front, sweeping down across the area this afternoon and evening, before stalling tonight. Provided that southwesterly surface flow through much of the day will keep ...