St. Clair, MI 14 Day Weather - 48079 WeatherWorld.com
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St. Clair, MI Weather Forecast


St. Clair, MI Weather Forecast Dated: 431 AM Sun Sep 06 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Sunday, September 6, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
66°F 19°C
Sunny
Pleasant near 70°F 21°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NE to the NNE at 9 mph 15 km/h.
Monday, September 7, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
67°F 20°C
Sunny
Comfortable with temperatures reaching 72°F 22°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Tuesday, September 8, 2026
Mid-Morning
63°F 17°C
Cloudy
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
72°F 22°C
Overcast
Enjoyable around 77°F 25°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds switching from the SE to the SSE at 11 mph 16 km/h.
Wednesday, September 9, 2026
Mid-Morning
70°F 21°C
Scattered Showers
Mid-Afternoon
83°F 28°C
Overcast
Early-Evening
76°F 25°C
Overcast
Warm temperatures up to 83°F 28°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds moving from the SSW to the SW at 16 mph 26 km/h. Gusts up to 30 mph 48 km/h.
Thursday, September 10, 2026
Mid-Morning
65°F 18°C
Light Showers
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
62°F 17°C
Overcast
Mild with a high of 68°F 20°C, scattered morning showers before drying out later, with lower humidity and barometric pressure rising. Winds swinging from the WSW to the NNE at 9 mph 14 km/h.
Friday, September 11, 2026
Mid-Morning
57°F 14°C
Cloudy
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
59°F 15°C
Sunny
Mildly cool near 64°F 18°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the WSW to the E at 8 mph 12 km/h.
Saturday, September 12, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
65°F 19°C
Sunny
Comfortable with temperatures reaching 72°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Sunday, September 13, 2026
Mid-Morning
62°F 16°C
Overcast
Mid-Afternoon
78°F 25°C
Overcast
Early-Evening
75°F 24°C
Cloudy
Enjoyable around 78°F 25°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds SSW at 14 mph 23 km/h. Gusts up to 20 mph 32 km/h.
Monday, September 14, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
67°F 20°C
Sunny
Early-Evening
62°F 17°C
Sunny
Refreshing around 67°F 20°C, sunny throughout the day, with lower humidity and barometric pressure rising. Winds switching from the NW to the SE at 12 mph 19 km/h.
Tuesday, September 15, 2026
Mid-Morning
55°F 13°C
Scattered Showers
Mid-Afternoon
65°F 19°C
Sunny
Early-Evening
61°F 16°C
Sunny
Mildly cool near 65°F 19°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
68°F 20°C
Overcast
Pleasant near 72°F 22°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling.
Thursday, September 17, 2026
Mid-Morning
65°F 19°C
Overcast
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
72°F 23°C
Scattered Showers
Comfortable with temperatures reaching 77°F 25°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the SSW to the WSW at 5 mph 8 km/h.
Friday, September 18, 2026
Mid-Morning
70°F 21°C
Partly Cloudy
Mid-Afternoon
82°F 28°C
Cloudy
Early-Evening
79°F 26°C
Partly Cloudy
Warm and summery around 82°F 28°C (feels like 85°F 30°C), partly cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds swinging from the S to the SSE at 8 mph 12 km/h.
Saturday, September 19, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
84°F 29°C
Sunny
Quite warm reaching 89°F 32°C, feeling like 95°F 35°C during peak afternoon, sunny throughout the day, with lower humidity and steady pressure. Winds shifting from the S to the SSE at 10 mph 16 km/h.
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