7-Day Zone Forecast for St. Clair County (Text-Only)
NWS Forecast for: St. Clair County
Issued by: National Weather Service Detroit/Pontiac, MI
Last Update: 621 AM EDT Sun Mar 22 2026




Today: Breezy, cloudy. Rain likely in the morning. A slight chance of thunderstorms until late afternoon. A chance of rain in the afternoon. Highs in the lower 50s. Temperatures falling into the mid 30s in the afternoon. West winds up to 10 mph, becoming north with gusts up to 25 mph early in the afternoon, then, increasing to 15 to 25 mph in the late afternoon. Chance of rain 70 percent.

Tonight: Cloudy. Lows in the upper 20s. North winds 5 to 15 mph with gusts up to 30 mph.

Monday: Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 30s. North winds 5 to 15 mph.

Monday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s. Northeast winds up to 5 mph, becoming south after midnight.

Tuesday: Mostly cloudy. Highs in the upper 40s. Southwest winds 5 to 15 mph.

Tuesday Night: Cloudy. Lows in the lower 30s.

Wednesday: Mostly cloudy. Highs in the mid 40s.

Wednesday Night: Mostly cloudy. Lows in the mid 30s.

Thursday: Mostly cloudy with a 50 percent chance of rain. Highs in the upper 50s.

Thursday Night: Mostly cloudy. Lows in the upper 20s.

Friday: Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 30s.

Friday Night: Mostly clear. Lows in the lower 20s.

Saturday: Mostly sunny. Highs in the mid 40s.







Zone Forecast: St. Clair County

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