Great Lakes, Ohio Valley & Midwest Long Range Weather Forecast for September 18th to October 17th
Includes Illinois, Indiana, Kentucky, Michigan, Ohio, Wisconsin
September 2025
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16Fair, then scattered showers.
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20Mostly fair skies.
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24Locally heavy showers, thunderstorms from Great Lakes area, points east.
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28Fair, quite cool.
October 2025
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1Gusty showers.
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4Fair, pleasant weather, then increasingly cloudy skies.
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8Heavy showers, thunderstorms.
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12Partly sunny, pleasant for the holiday.
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16Showers Great Lakes, points east.
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