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Big Walnut High School Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Chance of T-Storm | Patchy Fog | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Partly Cloudy | Clearing | Chance of Showers | Chance of Showers | Showers Likely |
| Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C |
| POP: 50% | POP: 20% | POP: 70% | POP: 70% | POP: 30% | POP: 40% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 615 PM EDT Thu Sep 10 2026 
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Issued: 748 PM EDT Thu Sep 10 2026
Key Messages
1) Additional showers and thunderstorms are expected into tonight, with some risk for heavy rainfall.
2) Another chance for showers and thunderstorms will be possible on Saturday.
Discussion
... KEY MESSAGE 1) A mid level short wave will move east across the mid Ohio Valley tonight as a frontal boundary sags slowly south across the region. The airmass across our area has begun to slowly recover with MLCapes now back up to around 1000 J/KG. This will allow for showers and some embedded t...