St. Clair Lake, MI 14 Day Weather
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St. Clair Lake, MI Weather Forecast


St. Clair Lake, MI Weather Forecast Dated: 319 AM Tue Sep 01 2026 (St. Clair Lake Time)
Expect a mild stretch with a mix of sun and clouds and frequent chances of rain over the next two weeks. generally humid conditions and no major pressure swings will dominate.
Tuesday, September 1, 2026
Mid-Morning
65°F 18°C
Heavy Rain
Mid-Afternoon
87°F 31°C
Overcast
Early-Evening
78°F 25°C
Overcast
Very warm with overcast skies, lower humidity and steady pressure. Winds shifting from S to NNW at 7 mph 11 km/h.
Wednesday, September 2, 2026
Mid-Morning
62°F 17°C
Fog
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
67°F 20°C
Sunny
Warm with a mix of sun and clouds, lower humidity and steady pressure.
Thursday, September 3, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
76°F 25°C
Sunny
Early-Evening
66°F 19°C
Sunny
Warm with mostly cloudy skies in the morning, mostly sunny in the afternoon, and partly sunny in the evening, steady humidity and steady pressure.
Friday, September 4, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
67°F 20°C
Sunny
Warm with partly sunny skies in the morning, mostly sunny in the afternoon, and partly sunny in the evening, increasing humidity and steady pressure.
Saturday, September 5, 2026
Mid-Morning
64°F 18°C
Partly Cloudy
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
68°F 20°C
Sunny
Warm with mostly sunny skies in the morning, then mostly sunny for the afternoon and evening, steady humidity and steady pressure.
Sunday, September 6, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
72°F 22°C
Overcast
Warm with mostly cloudy skies in the morning, partly sunny in the afternoon, and mostly cloudy in the evening, steady humidity and barometric pressure falling.
Monday, September 7, 2026
Mid-Morning
58°F 15°C
Light Showers
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
66°F 19°C
Overcast
Cool with overcast skies, lower humidity and barometric pressure falling. Winds shifting from S to NE at 4 mph 7 km/h.
Tuesday, September 8, 2026
Mid-Morning
56°F 14°C
Fog
Mid-Afternoon
61°F 16°C
Light Showers
Early-Evening
64°F 18°C
Scattered Showers
Cool with a mix of sun and clouds, steady humidity and steady pressure.
Wednesday, September 9, 2026
Mid-Morning
64°F 18°C
Fog
Mid-Afternoon
75°F 24°C
Cloudy
Early-Evening
69°F 21°C
Scattered Showers
Warm with mostly cloudy skies, steady humidity and barometric pressure falling. Winds shifting from SSE to WNW at 6 mph 10 km/h.
Thursday, September 10, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
64°F 18°C
Sunny
Cool with mostly sunny skies in the morning, mostly sunny in the afternoon, and mostly cloudy in the evening, steady humidity and steady pressure. Winds WNW at 14 mph 22 km/h.
Friday, September 11, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
65°F 18°C
Overcast
Early-Evening
62°F 17°C
Cloudy
Cool with overcast skies, steady humidity and steady pressure. Winds shifting from WNW to N at 7 mph 11 km/h.
Saturday, September 12, 2026
Mid-Morning
55°F 13°C
Light Fog
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
60°F 15°C
Overcast
Cool with mostly sunny skies in the morning, then partly sunny for the afternoon and evening, steady humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
60°F 15°C
Overcast
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
73°F 23°C
Overcast
Warm with mostly cloudy skies in the morning, mostly cloudy in the afternoon, and partly sunny in the evening, steady humidity and barometric pressure falling. Winds shifting from SSE to SSW at 14 mph 23 km/h.
Monday, September 14, 2026
Mid-Morning
55°F 13°C
Heavy Rain At Times
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
57°F 14°C
Partly Cloudy
Cool with a mix of sun and clouds, steady humidity and steady pressure. Winds shifting from WNW to W at 8 mph 13 km/h.
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