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St. Clair MI Weather - Clear - 39°F
Clear
39°F
Updated 9:09 pm
Feels Like 46°F
Humidity 93%
Wind WNW 1 mph
Barometer  30.39 in
Dew Point 37°F
St. Clair MI Weather - Clear - 4°C
Clear
4°C
Updated 9:09 pm
Feels Like 8°C
Humidity 93%
Wind WNW 2 km/h
Barometer  102.9 kPa
Dew Point 3°C
St. Clair, MI Weather and Current Conditionsst. clair mi weather forecast

St. Clair, MI Weather Forecast

St. Clair Michigan WeatherSt. Clair, Michigan Weather Weather Forecast
14 day API weather forecast for St. Clair, Michigan. Note: The 7-day weather forecast for St. Clair, MI is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
St. Clair, MI Weather Forecast Dated: 909 PM Fri Oct 30 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.

Friday, October 30, 2026

Mid-Morning
St. Clair Weather - 2026-10-30 - Morning - Sunny
44°F 6°C
Sunny
Mid-Afternoon
St. Clair Weather - 2026-10-30 - Afternoon - Overcast
57°F 14°C
Overcast
Early-Evening
St. Clair Weather - 2026-10-30 - Evening - Overcast
50°F 10°C
Overcast
Brisk around 57°F 14°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds turning from the NW to the W at 5 mph 8 km/h.

Saturday, October 31, 2026

Mid-Morning
St. Clair Weather - 2026-10-31 - Morning - Overcast
44°F 7°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-10-31 - Afternoon - Overcast
59°F 15°C
Overcast
Early-Evening
St. Clair Weather - 2026-10-31 - Evening - Overcast
54°F 12°C
Overcast
Mildly cool near 59°F 15°C, overcast throughout the day, with steady humidity and steady pressure.

Sunday, November 1, 2026

Mid-Morning
St. Clair Weather - 2026-11-01 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-11-01 - Afternoon - Overcast
64°F 18°C
Overcast
Early-Evening
St. Clair Weather - 2026-11-01 - Evening - Overcast
55°F 13°C
Overcast
Comfortable at 64°F 18°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the S to the SSE at 7 mph 10 km/h.

Monday, November 2, 2026

Mid-Morning
St. Clair Weather - 2026-11-02 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-11-02 - Afternoon - Overcast
58°F 14°C
Overcast
Early-Evening
St. Clair Weather - 2026-11-02 - Evening - Overcast
55°F 13°C
Overcast
Cool with a high near 58°F 14°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds moving from the SSE to the S at 10 mph 17 km/h. Gusts up to 22 mph 35 km/h.

Tuesday, November 3, 2026

Mid-Morning
St. Clair Weather - 2026-11-03 - Morning - Scattered Showers
58°F 14°C
Scattered Showers
Mid-Afternoon
St. Clair Weather - 2026-11-03 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
St. Clair Weather - 2026-11-03 - Evening - Overcast
63°F 17°C
Overcast
Mild with a high of 68°F 20°C, scattered downpours possible, with lower humidity and steady pressure. Winds swinging from the S to the SSE at 15 mph 25 km/h. Gusts up to 34 mph 55 km/h.

Wednesday, November 4, 2026

Mid-Morning
St. Clair Weather - 2026-11-04 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-11-04 - Afternoon - Light Rain
66°F 19°C
Light Rain
Early-Evening
St. Clair Weather - 2026-11-04 - Evening - Drizzle
62°F 17°C
Drizzle
Mildly cool near 66°F 19°C, dry early, with showers continuing through afternoon and evening, with increasing humidity and steady pressure. Winds shifting from the S to the SSW at 10 mph 16 km/h. Gusts up to 27 mph 44 km/h.

Thursday, November 5, 2026

Mid-Morning
St. Clair Weather - 2026-11-05 - Morning - Drizzle
56°F 13°C
Drizzle
Mid-Afternoon
St. Clair Weather - 2026-11-05 - Afternoon - Drizzle
58°F 15°C
Drizzle
Early-Evening
St. Clair Weather - 2026-11-05 - Evening - Drizzle
55°F 13°C
Drizzle
Comfortable at 58°F 15°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds turning from the SSW to the NNW at 8 mph 13 km/h.

Friday, November 6, 2026

Mid-Morning
St. Clair Weather - 2026-11-06 - Morning - Scattered Showers
50°F 10°C
Scattered Showers
Mid-Afternoon
St. Clair Weather - 2026-11-06 - Afternoon - Drizzle
53°F 12°C
Drizzle
Early-Evening
St. Clair Weather - 2026-11-06 - Evening - Drizzle
49°F 10°C
Drizzle
Crisp with a high near 53°F 12°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the N to the ESE at 9 mph 14 km/h. Gusts up to 28 mph 45 km/h.

Saturday, November 7, 2026

Mid-Morning
St. Clair Weather - 2026-11-07 - Morning - Overcast
50°F 10°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-11-07 - Afternoon - Overcast
55°F 13°C
Overcast
Early-Evening
St. Clair Weather - 2026-11-07 - Evening - Overcast
51°F 11°C
Overcast
Brisk around 55°F 13°C, overcast throughout the day, with lower humidity and steady pressure. Winds blowing from the NNW at 9 mph 15 km/h. Gusts up to 24 mph 39 km/h.

Sunday, November 8, 2026

Mid-Morning
St. Clair Weather - 2026-11-08 - Morning - Partly Cloudy
48°F 9°C
Partly Cloudy
Mid-Afternoon
St. Clair Weather - 2026-11-08 - Afternoon - Partly Cloudy
52°F 11°C
Partly Cloudy
Early-Evening
St. Clair Weather - 2026-11-08 - Evening - Partly Cloudy
47°F 8°C
Partly Cloudy
Cool and brisk at 52°F 11°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds N at 9 mph 14 km/h. Gusts up to 20 mph 31 km/h.

Monday, November 9, 2026

Mid-Morning
St. Clair Weather - 2026-11-09 - Morning - Partly Cloudy
47°F 9°C
Partly Cloudy
Mid-Afternoon
St. Clair Weather - 2026-11-09 - Afternoon - Partly Cloudy
54°F 12°C
Partly Cloudy
Early-Evening
St. Clair Weather - 2026-11-09 - Evening - Cloudy
48°F 9°C
Cloudy
Chilly near 54°F 12°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.

Tuesday, November 10, 2026

Mid-Morning
St. Clair Weather - 2026-11-10 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-11-10 - Afternoon - Overcast
54°F 12°C
Overcast
Early-Evening
St. Clair Weather - 2026-11-10 - Evening - Cloudy
49°F 10°C
Cloudy
Crisp with a high near 54°F 12°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.

Wednesday, November 11, 2026

Mid-Morning
St. Clair Weather - 2026-11-11 - Morning - Drizzle
48°F 9°C
Drizzle
Mid-Afternoon
St. Clair Weather - 2026-11-11 - Afternoon - Overcast
53°F 12°C
Overcast
Early-Evening
St. Clair Weather - 2026-11-11 - Evening - Overcast
51°F 11°C
Overcast
Brisk around 53°F 12°C, early showers breaking for a drier afternoon, with steady humidity and steady pressure.

Thursday, November 12, 2026

Mid-Morning
St. Clair Weather - 2026-11-12 - Morning - Partly Cloudy
49°F 10°C
Partly Cloudy
Mid-Afternoon
St. Clair Weather - 2026-11-12 - Afternoon - Scattered Showers
55°F 13°C
Scattered Showers
Early-Evening
St. Clair Weather - 2026-11-12 - Evening - Scattered Showers
50°F 10°C
Scattered Showers
Cool and brisk at 55°F 13°C, scattered downpours possible, with steady humidity and steady pressure.

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Weather by the Numbers

Fri, 30th
St. Clair MI Weather - Friday, Oct 30, 2026 - Overcast
Hi: 57°F 14°C
Lo: 43°F 6°C
Sunrise 08:02 AM
Sunset 06:25 PM
Wind NNW 9 mph15 km/h
Dew Point 34°F1°C
uv Index 2
Barometric Pressure 30.33 in1027 mb
POP 11% *
Humidity 49%
Sat, 31st
St. Clair MI Weather - Saturday, Oct 31, 2026 - Overcast
Hi: 59°F 15°C
Lo: 43°F 6°C
Sunrise 08:03 AM
Sunset 06:23 PM
Wind S 8 mph13 km/h
Dew Point 37°F3°C
uv Index 2
Barometric Pressure 30.47 in1032 mb
POP 12% *
Humidity 52%
Sun, 1st
St. Clair MI Weather - Sunday, Nov 1, 2026 - Overcast
Hi: 64°F 18°C
Lo: 50°F 10°C
Sunrise 08:05 AM
Sunset 06:22 PM
Wind SSE 5 mph8 km/h
Dew Point 41°F5°C
uv Index 1
Barometric Pressure 30.36 in1028 mb
POP 14% *
Humidity 58%
Mon, 2nd
St. Clair MI Weather - Monday, Nov 2, 2026 - Overcast
Hi: 60°F 15°C
Lo: 53°F 11°C
Sunrise 07:06 AM
Sunset 05:21 PM
Wind S 11 mph18 km/h
Dew Point 49°F10°C
uv Index 0
Barometric Pressure 30.21 in1023 mb
POP 22% *
Humidity 77%
Tue, 3rd
St. Clair MI Weather - Tuesday, Nov 3, 2026 - Overcast
Hi: 68°F 20°C
Lo: 55°F 13°C
Sunrise 07:07 AM
Sunset 05:20 PM
Wind S 15 mph23 km/h
Dew Point 55°F13°C
uv Index 1
Barometric Pressure 30.06 in1018 mb
POP 20% *
Humidity 76%
Wed, 4th
St. Clair MI Weather - Wednesday, Nov 4, 2026 - Light Drizzle
Hi: 66°F 19°C
Lo: 60°F 15°C
Sunrise 07:09 AM
Sunset 05:19 PM
Wind S 16 mph25 km/h
Dew Point 55°F13°C
uv Index 4
Barometric Pressure 29.83 in1010 mb
POP 60% *
Humidity 69%
Thu, 5th
St. Clair MI Weather - Thursday, Nov 5, 2026 - Patchy Light Drizzle
Hi: 59°F 15°C
Lo: 51°F 11°C
Sunrise 07:10 AM
Sunset 05:17 PM
Wind SW 7 mph12 km/h
Dew Point 53°F12°C
uv Index 3
Barometric Pressure 29.77 in1008 mb
POP 62% *
Humidity 81%
Fri, 6th
St. Clair MI Weather - Friday, Nov 6, 2026 - Light Drizzle
Hi: 53°F 12°C
Lo: 48°F 9°C
Sunrise 07:11 AM
Sunset 05:16 PM
Wind N 10 mph16 km/h
Dew Point 46°F8°C
uv Index 3
Barometric Pressure 29.85 in1011 mb
POP 51% *
Humidity 79%
Sat, 7th
St. Clair MI Weather - Saturday, Nov 7, 2026 - Overcast
Hi: 55°F 13°C
Lo: 47°F 8°C
Sunrise 07:12 AM
Sunset 05:15 PM
Wind NNW 9 mph15 km/h
Dew Point 41°F5°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 14% *
Humidity 62%
Sun, 8th
St. Clair MI Weather - Sunday, Nov 8, 2026 - Partly Cloudy
Hi: 54°F 12°C
Lo: 44°F 7°C
Sunrise 07:14 AM
Sunset 05:14 PM
Wind N 9 mph15 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 9% *
Humidity 64%
Mon, 9th
St. Clair MI Weather - Monday, Nov 9, 2026 - Partly Cloudy
Hi: 56°F 13°C
Lo: 43°F 6°C
Sunrise 07:15 AM
Sunset 05:13 PM
Wind N 3 mph5 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 10% *
Humidity 69%
Tue, 10th
St. Clair MI Weather - Tuesday, Nov 10, 2026 - Overcast
Hi: 56°F 13°C
Lo: 44°F 7°C
Sunrise 07:16 AM
Sunset 05:12 PM
Wind ESE 2 mph4 km/h
Dew Point 40°F4°C
uv Index 3
Barometric Pressure 30.18 in1022 mb
POP 13% *
Humidity 60%
Wed, 11th
St. Clair MI Weather - Wednesday, Nov 11, 2026 - Light Drizzle
Hi: 54°F 12°C
Lo: 46°F 8°C
Sunrise 07:18 AM
Sunset 05:11 PM
Wind N 3 mph5 km/h
Dew Point 47°F8°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 36% *
Humidity 82%
Thu, 12th
St. Clair MI Weather - Thursday, Nov 12, 2026 - Patchy Rain Nearby
Hi: 56°F 14°C
Lo: 46°F 8°C
Sunrise 07:19 AM
Sunset 05:10 PM
Wind W 5 mph8 km/h
Dew Point 45°F7°C
uv Index 3
Barometric Pressure 29.91 in1013 mb
POP 15% *
Humidity 70%
* POP = Probability of Precipitation. Data for 12:00 PM.