| NWS Forecast for: Saint Clair MI Issued by: National Weather Service Detroit/Pontiac, MI Last Update: 10:14 pm EDT Jul 12, 2026 | |
| Tonight: Mostly clear, with a low around 61. Calm wind. Monday: Sunny, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon. Monday Night: Clear, with a low around 69. South wind around 6 mph. Tuesday: Sunny and hot, with a high near 96. Heat index values as high as 101. West southwest wind 5 to 9 mph. Tuesday Night: Mostly clear, with a low around 72. West wind 6 to 8 mph. Wednesday: Sunny, with a high near 92. Wednesday Night: Partly cloudy, with a low around 66. Thursday: Mostly sunny, with a high near 89. Thursday Night: Partly cloudy, with a low around 65. Friday: Mostly sunny, with a high near 86. Friday Night: A chance of showers. Partly cloudy, with a low around 65. Saturday: A chance of showers. Partly sunny, with a high near 85. Saturday Night: A chance of showers. Partly cloudy, with a low around 64. Sunday: A chance of showers. Mostly sunny, with a high near 84. | |
| Saint Clair MI 42.82°N 82.48°W (Elev. 577 ft) | |
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