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Black River, MI Weather Forecast
Black River, MI Weather Forecast Date: 1013 PM EDT Sat Sep 05 2026
The area/counties/county of: Alcona, including the city of Harrisville.or toggle through each period.
Overnight... Clear. Lows around 50. Light winds.
Sunday... Mostly sunny. Highs in the mid 70s. Northeast winds up to 10 mph.
Sunday Night... Partly cloudy. Lows around 50. Light winds.
Labor Day... Partly sunny. Highs in the upper 70s. Southeast winds up to 10 mph.
Monday Night... Partly cloudy. Lows in the mid 50s. Light winds.
Tuesday... Mostly cloudy. Highs in the upper 70s.
Tuesday Night... Rain showers likely and chance of thunderstorms. Lows in the mid 60s. Chance of precipitation 70%.
Wednesday... Partly sunny with chance of rain showers. Breezy. Highs in the mid 80s. Chance of showers 30%.
Wednesday Night... Partly cloudy. Lows in the upper 50s.
Thursday... Partly sunny. Cooler. Highs in the lower 70s.
Thursday Night... Mostly clear. Lows in the upper 40s.
Friday... Mostly sunny. Highs in the lower 70s.
Friday Night... Partly cloudy. Lows in the lower 50s.
POP = Probability of Precipitation
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