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

Feedback E-mail the Weather

Quick Weather Clicks

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

Current Conditions

Settings
St. Clair MI Weather - Clear - 59°F
Clear
59°F
Updated 4:31 am
Feels Like 57°F
Humidity 87%
Wind NW 5 mph
Barometer  30.06 in
Dew Point 55°F
St. Clair MI Weather - Clear - 15°C
Clear
15°C
Updated 4:31 am
Feels Like 14°C
Humidity 87%
Wind NW 8 km/h
Barometer  101.7 kPa
Dew Point 13°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 forecast for St. Clair, Michigan. Note. The 7-day weather forecast for St. Clair, MI is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
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
St. Clair Weather - 2026-09-06 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
St. Clair Weather - 2026-09-06 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
St. Clair Weather - 2026-09-06 - Evening - Sunny
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
St. Clair Weather - 2026-09-07 - Morning - Partly Cloudy
61°F 16°C
Partly Cloudy
Mid-Afternoon
St. Clair Weather - 2026-09-07 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
St. Clair Weather - 2026-09-07 - Evening - Sunny
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
St. Clair Weather - 2026-09-08 - Morning - Cloudy
63°F 17°C
Cloudy
Mid-Afternoon
St. Clair Weather - 2026-09-08 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
St. Clair Weather - 2026-09-08 - Evening - Overcast
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
St. Clair Weather - 2026-09-09 - Morning - Scattered Showers
70°F 21°C
Scattered Showers
Mid-Afternoon
St. Clair Weather - 2026-09-09 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
St. Clair Weather - 2026-09-09 - Evening - Overcast
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
St. Clair Weather - 2026-09-10 - Morning - Light Showers
65°F 18°C
Light Showers
Mid-Afternoon
St. Clair Weather - 2026-09-10 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
St. Clair Weather - 2026-09-10 - Evening - Overcast
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
St. Clair Weather - 2026-09-11 - Morning - Cloudy
57°F 14°C
Cloudy
Mid-Afternoon
St. Clair Weather - 2026-09-11 - Afternoon - Sunny
64°F 18°C
Sunny
Early-Evening
St. Clair Weather - 2026-09-11 - Evening - Sunny
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
St. Clair Weather - 2026-09-12 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
St. Clair Weather - 2026-09-12 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
St. Clair Weather - 2026-09-12 - Evening - Sunny
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
St. Clair Weather - 2026-09-13 - Morning - Overcast
62°F 16°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-09-13 - Afternoon - Overcast
78°F 25°C
Overcast
Early-Evening
St. Clair Weather - 2026-09-13 - Evening - Cloudy
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
St. Clair Weather - 2026-09-14 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
St. Clair Weather - 2026-09-14 - Afternoon - Sunny
67°F 20°C
Sunny
Early-Evening
St. Clair Weather - 2026-09-14 - Evening - Sunny
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
St. Clair Weather - 2026-09-15 - Morning - Scattered Showers
55°F 13°C
Scattered Showers
Mid-Afternoon
St. Clair Weather - 2026-09-15 - Afternoon - Sunny
65°F 19°C
Sunny
Early-Evening
St. Clair Weather - 2026-09-15 - Evening - Sunny
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
St. Clair Weather - 2026-09-16 - Morning - Sunny
58°F 15°C
Sunny
Mid-Afternoon
St. Clair Weather - 2026-09-16 - Afternoon - Overcast
72°F 22°C
Overcast
Early-Evening
St. Clair Weather - 2026-09-16 - Evening - Overcast
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
St. Clair Weather - 2026-09-17 - Morning - Overcast
65°F 19°C
Overcast
Mid-Afternoon
St. Clair Weather - 2026-09-17 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
St. Clair Weather - 2026-09-17 - Evening - Scattered Showers
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
St. Clair Weather - 2026-09-18 - Morning - Partly Cloudy
70°F 21°C
Partly Cloudy
Mid-Afternoon
St. Clair Weather - 2026-09-18 - Afternoon - Cloudy
82°F 28°C
Cloudy
Early-Evening
St. Clair Weather - 2026-09-18 - Evening - Partly Cloudy
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
St. Clair Weather - 2026-09-19 - Morning - Sunny
75°F 24°C
Sunny
Mid-Afternoon
St. Clair Weather - 2026-09-19 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
St. Clair Weather - 2026-09-19 - Evening - Sunny
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.

Trending Headlines

St. Clair, MI Weather Radar Map

Use the map search tool if you want to place a location marker on the radar map...

St. Clair, MI 7 Day Weather

National Two Day Weather Forecast


E-mail the St. Clair Weather Forecast

Voice your opinion or tell us about page issues...

Weather by the Numbers

Sun, 6th
St. Clair MI Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 74°F 24°C
Lo: 58°F 15°C
Sunrise 07:00 AM
Sunset 07:56 PM
Wind NE 11 mph18 km/h
Dew Point 60°F15°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 4% *
Humidity 60%
Mon, 7th
St. Clair MI Weather - Monday, Sep 7, 2026 - Sunny
Hi: 72°F 22°C
Lo: 58°F 14°C
Sunrise 07:01 AM
Sunset 07:54 PM
Wind ENE 6 mph10 km/h
Dew Point 52°F11°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 3% *
Humidity 54%
Tue, 8th
St. Clair MI Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 77°F 25°C
Lo: 58°F 14°C
Sunrise 07:02 AM
Sunset 07:53 PM
Wind S 8 mph13 km/h
Dew Point 55°F13°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 12% *
Humidity 52%
Wed, 9th
St. Clair MI Weather - Wednesday, Sep 9, 2026 - Patchy Rain Nearby
Hi: 86°F 30°C
Lo: 67°F 20°C
Sunrise 07:03 AM
Sunset 07:51 PM
Wind SSW 16 mph26 km/h
Dew Point 66°F19°C
uv Index 3
Barometric Pressure 29.91 in1013 mb
POP 30% *
Humidity 84%
Thu, 10th
St. Clair MI Weather - Thursday, Sep 10, 2026 - Patchy Rain Nearby
Hi: 75°F 24°C
Lo: 59°F 15°C
Sunrise 07:05 AM
Sunset 07:49 PM
Wind SSW 11 mph17 km/h
Dew Point 63°F17°C
uv Index 5
Barometric Pressure 29.74 in1007 mb
POP 34% *
Humidity 83%
Fri, 11th
St. Clair MI Weather - Friday, Sep 11, 2026 - Sunny
Hi: 64°F 18°C
Lo: 55°F 13°C
Sunrise 07:06 AM
Sunset 07:47 PM
Wind NE 9 mph15 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 7% *
Humidity 59%
Sat, 12th
St. Clair MI Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 73°F 23°C
Lo: 51°F 11°C
Sunrise 07:07 AM
Sunset 07:45 PM
Wind S 5 mph8 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 2% *
Humidity 50%
Sun, 13th
St. Clair MI Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 78°F 26°C
Lo: 54°F 12°C
Sunrise 07:08 AM
Sunset 07:44 PM
Wind SSW 13 mph20 km/h
Dew Point 51°F11°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 11% *
Humidity 48%
Mon, 14th
St. Clair MI Weather - Monday, Sep 14, 2026 - Sunny
Hi: 68°F 20°C
Lo: 56°F 13°C
Sunrise 07:09 AM
Sunset 07:42 PM
Wind NW 15 mph24 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 2% *
Humidity 52%
Tue, 15th
St. Clair MI Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 66°F 19°C
Lo: 51°F 10°C
Sunrise 07:10 AM
Sunset 07:40 PM
Wind WSW 6 mph10 km/h
Dew Point 49°F9°C
uv Index 5
Barometric Pressure 30.33 in1027 mb
POP 9% *
Humidity 61%
Wed, 16th
St. Clair MI Weather - Wednesday, Sep 16, 2026 - Cloudy
Hi: 72°F 22°C
Lo: 54°F 12°C
Sunrise 07:11 AM
Sunset 07:38 PM
Wind SSE 6 mph10 km/h
Dew Point 49°F9°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 3% *
Humidity 52%
Thu, 17th
St. Clair MI Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 78°F 25°C
Lo: 62°F 17°C
Sunrise 07:12 AM
Sunset 07:37 PM
Wind SSW 9 mph14 km/h
Dew Point 52°F11°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 9% *
Humidity 54%
Fri, 18th
St. Clair MI Weather - Friday, Sep 18, 2026 - Overcast
Hi: 83°F 28°C
Lo: 67°F 19°C
Sunrise 07:13 AM
Sunset 07:35 PM
Wind S 7 mph12 km/h
Dew Point 66°F19°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 12% *
Humidity 67%
Sat, 19th
St. Clair MI Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 89°F 32°C
Lo: 71°F 21°C
Sunrise 07:14 AM
Sunset 07:33 PM
Wind S 7 mph12 km/h
Dew Point 71°F22°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 5% *
Humidity 69%
* POP = Probability of Precipitation. Data for 12:00 PM.