Weather WorldHarrison Lake State Reservation, OH Weather Forecast
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Harrison Lake State Reservation Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  | |  | | | |  |  | | |
| Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 227 AM EDT Sat Aug 29 2026 
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Issued: 322 AM EDT Sat Aug 29 2026
Key Messages
- Mainly dry and trending warmer this weekend. Slight chances of showers far northern Indiana and southern Lower Michigan tonight and Sunday.
- Heat and humidity increases into next week with afternoon heat indices expected to reach well into the 90s for many. Heat indices may approach 100 degrees for portions of the area Tuesday and Wednesday afternoons.
- A primarily dry pattern should continue into at least the first half of next week, with chances of showers and thunderstorms during th...