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Merri-Mac Park, OH Weather Forecast
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Merri-Mac Park Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  | | |  | | | |  | | |
| Chance of T-Storm | Partly Cloudy | Clearing | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy |
| Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C |
| POP: 70% | POP: 60% | POP: 60% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 405 AM EDT Mon Aug 17 2026 
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Merri-Mac Park Forecast Discussion
Issued: 252 AM EDT Mon Aug 17 2026
Key Messages
1) A few more rounds of showers and thunderstorms will occur ahead of a cold front that will move through the region this afternoon.
2) Another cold front will move through Wednesday night bringing below normal temperatures for the end of the week.
Discussion
... KEY MESSAGE 1) MCS moving out of southern Illinois into southern Indiana will continue east through the early morning hours into the forecast area, although it should weaken as it moves into an are...