| NWS Forecast for: St. Clair County Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 944 AM EDT Mon Aug 31 2026 |  |
Rest Of Today: Cloudy in the late morning and early afternoon, then becoming partly cloudy. Numerous showers and a slight chance of thunderstorms late in the morning, then scattered showers and a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 70 percent. Tonight: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 70. Southwest winds up to 10 mph. Tuesday: Mostly sunny in the morning, then becoming partly cloudy. A chance of showers and thunderstorms. Highs in the upper 80s. West winds up to 10 mph. Chance of rain 40 percent. Heat index readings in the mid 90s. Tuesday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows around 70. West winds up to 10 mph. Chance of rain 40 percent. Wednesday: Partly cloudy. Showers likely and a chance of thunderstorms in the afternoon. Highs in the upper 80s. West winds up to 10 mph. Chance of rain 60 percent. Heat index readings in the lower 90s. Wednesday Night: Showers likely and a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the upper 60s. Chance of rain 70 percent. Thursday: Partly cloudy with a 30 percent chance of showers. Highs in the lower 80s. Thursday Night: Partly cloudy. Lows in the lower 60s. Friday: Partly cloudy. Highs around 80. Friday Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 60. Saturday: Mostly sunny. Highs in the upper 70s. Saturday Night: Mostly clear. Lows in the upper 50s. Sunday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s. | |
| Zone Forecast: St. Clair County | |
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