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Casco, MI Weather Forecast
Casco, MI Weather Forecast Date: 355 PM EST Thu Nov 05 2026
The area/counties/county of: St. Clair, including the city of Port Huron.or toggle through each period.
Tonight... A slight chance of rain in the evening, then rain likely. Lows in the upper 30s. West winds 5 to 10 mph. Chance of rain 70%.
Friday... Cloudy. A chance of rain in the morning, then rain likely in the afternoon. Highs in the upper 40s. West winds 5 to 15 mph with gusts up to 25 mph. Chance of rain 70%.
Friday Night... A chance of rain in the evening, then rain likely after midnight. Lows in the mid 30s. Northwest winds 5 to 15 mph with gusts up to 30 mph. Chance of rain 70%.
Saturday... Mostly cloudy. A chance of rain in the morning. Highs in the lower 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50%.
Saturday Night... Partly cloudy. Lows around 30. West winds up to 10 mph.
Sunday... Partly cloudy in the morning then clearing. Highs in the upper 50s.
Sunday Night... Mostly clear. Lows in the lower 30s.
Monday... Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 50s.
Monday Night... Partly cloudy. Lows in the lower 40s.
Tuesday... Partly cloudy in the morning then clearing. Highs in the lower 60s.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 30s.
Veterans Day... Partly cloudy. Highs in the mid 50s.
Wednesday Night... Partly cloudy. Lows in the lower 30s.
POP = Probability of Precipitation
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