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Casco, MI 7-Day Night Weather Forecast
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Casco, MI Weather Forecast
Casco, MI Weather Forecast Date: 304 PM EDT Fri Sep 04 2026
The area/counties/county of: St. Clair, including the city of Port Huron.or toggle through each period.
Tonight... Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers. Lows in the lower 60s. Northeast winds up to 5 mph. Chance of rain 50%.
Saturday... Partly cloudy in the morning then clearing. Highs in the mid 70s. Northeast winds 5 to 15 mph.
Saturday Night... Partly cloudy. Lows in the upper 50s. Northeast winds up to 10 mph.
Sunday... Mostly sunny. Highs in the mid 70s. Northeast winds up to 10 mph.
Sunday Night... Mostly clear. Lows in the mid 50s. Northeast winds up to 5 mph.
Labor Day... Mostly sunny. Highs in the upper 70s.
Monday Night... Partly cloudy. Lows in the upper 50s.
Tuesday... Partly cloudy in the morning, then becoming mostly cloudy. Highs around 80.
Tuesday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of rain 30%.
Wednesday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 30%. Heat index readings heat index values up to 90.
Wednesday Night... Partly cloudy. Lows in the mid 60s.
Thursday... Partly cloudy. Highs in the mid 70s.
Thursday Night... Partly cloudy. Lows in the mid 50s.
POP = Probability of Precipitation
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