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Waterloo State Forest, OH Weather Forecast
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Waterloo State Forest Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY |
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| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Thunderstorms | Chance of Showers | Partly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Sunny |
| Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C |
| POP: 50% | POP: 40% | POP: 40% | POP: 70% | POP: 80% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 233 AM EDT Mon Sep 21 2026 
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Issued: 340 AM EDT Mon Sep 21 2026
Key Messages
1.)Flash flooding continues through mid-morning across southeast Ohio and northern West Virginia.
2.) Flash flood potential and isolated severe thunderstorms with damaging wind gusts late this afternoon through tonight.
3.) Turning noticeably cooler with localized flooding risks continuing Tuesday and Wednesday before drier air arrives late week.
Discussion
... KEY MESSAGE 1...
H850 southerly winds around 20 to 25KT continue to direct mass and high moisture into an effective frontal zone ...