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Grand Lake, OH 7-Day Night Weather Forecast
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Grand Lake, OH Weather Forecast
Grand Lake, OH Weather Forecast Date: 532 PM EDT Tue Aug 04 2026
The area/counties/county of: Auglaize, including the cities of: Wapakoneta, St. Marys, New Bremen, and Minster.or toggle through each period.
Tonight... Clear. Lows in the lower 60s. Light and variable winds.
Wednesday... Mostly sunny. Highs in the mid 80s. Light and variable winds, becoming west around 5 mph in the afternoon.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. Southwest winds around 5 mph.
Thursday... Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds around 5 mph. Chance of rain 50%.
Thursday Night... Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows in the mid 60s. Southwest winds around 5 mph. Chance of rain 70%.
Friday... Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 70%.
Friday Night... Partly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 70%.
Saturday... Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30%.
Saturday Night... Partly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 30%.
Sunday... Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 30%.
Sunday Night... Partly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 50%.
Monday... Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50%.
Monday Night... Showers likely with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the upper 60s. Chance of rain 60%.
POP = Probability of Precipitation
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