| NWS Forecast for: St. Clair County Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 255 AM EDT Wed Jul 1 2026 |  |
Today: Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. West winds 5 to 15 mph with gusts up to 25 mph. Chance of rain 30 percent. Highest heat index readings 108 to 110 in the afternoon. Tonight: Clear. Lows in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Thursday: Mostly sunny. Highs in the upper 90s. West winds 5 to 15 mph with gusts up to 25 mph. Highest heat index readings heat index values up to 108 in the afternoon. Thursday Night: Mostly clear. Lows in the lower 70s. West winds up to 10 mph. Gusts up to 25 mph in the evening. Friday: Partly cloudy. Showers likely and a chance of thunderstorms in the afternoon. Highs in the lower 90s. West winds up to 10 mph with gusts up to 20 mph. Chance of rain 60 percent. Heat index readings 97 to 102. Friday Night: Partly cloudy. A chance of showers and thunderstorms in the evening, then showers likely and a chance of thunderstorms after midnight. Lows in the upper 60s. Chance of rain 60 percent. Independence Day: Partly cloudy with a chance of showers in the morning, then mostly cloudy with showers and a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 80 percent. Heat index readings in the mid 90s. Saturday Night: Mostly cloudy. Showers likely and a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 60 percent. Sunday: Mostly cloudy with a chance of showers in the morning, then partly cloudy with showers likely and a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 60 percent. Sunday Night: Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 40 percent. Monday: Partly cloudy in the morning then clearing. Highs in the mid 80s. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Tuesday: Partly cloudy. Highs in the mid 80s. | |
| Zone Forecast: St. Clair County | |
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