10-day forecast for St. Clair, MI: 35° to 71°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
71°
Best day: Saturday, October 24
52°
Worst day: Saturday, October 17
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1752° / 40°0
Morning40°feels 33°
Afternoon51°feels 47°
Evening45°feels 41°
Overnight43°feels 35°
52 °
St. Clair, Saturday, 17 October
Clear. High 52°, low 40°.
Pressure30.45 inHg
Wind7.3 mph NW
Humidity53%
Visibility6.2 mi
Dew point29°
Sun, 1859° / 41°0
Morning41°feels 36°
Afternoon58°feels 56°
Evening51°feels 49°
Overnight42°feels 37°
59 °
St. Clair, Sunday, 18 October
Clear. High 59°, low 41°.
Pressure30.50 inHg
Wind10.5 mph SW
Humidity58%
Visibility6.2 mi
Dew point40°
Mon, 1961° / 40°0
Morning40°feels 37°
Afternoon61°feels 59°
Evening50°feels 49°
Overnight47°feels 43°
61 °
St. Clair, Monday, 19 October
Clear. High 61°, low 40°.
Pressure30.47 inHg
Wind5.9 mph S
Humidity54%
Visibility6.2 mi
Dew point40°
Tue, 2063° / 35°0
Morning43°feels 40°
Afternoon61°feels 59°
Evening49°feels 47°
Overnight43°feels 43°
63 °
St. Clair, Tuesday, 20 October
Partly cloudy. High 63°, low 35°.
Pressure30.39 inHg
Wind4 mph NE
Humidity38%
Visibility—
Dew point33°
Wed, 2164° / 39°0
Morning46°feels 46°
Afternoon62°feels 60°
Evening52°feels 50°
Overnight47°feels 45°
64 °
St. Clair, Wednesday, 21 October
Partly cloudy. High 64°, low 39°.
Pressure30.36 inHg
Wind5.7 mph E
Humidity47%
Visibility—
Dew point40°
Thu, 2267° / 45°0
Morning52°feels 50°
Afternoon65°feels 64°
Evening55°feels 53°
Overnight51°feels 48°
67 °
St. Clair, Thursday, 22 October
Clear. High 67°, low 45°.
Pressure30.30 inHg
Wind5.5 mph SE
Humidity41%
Visibility—
Dew point40°
Fri, 2370° / 49°0
Morning57°feels 55°
Afternoon68°feels 66°
Evening57°feels 55°
Overnight54°feels 52°
70 °
St. Clair, Friday, 23 October
Overcast. High 70°, low 49°.
Pressure30.27 inHg
Wind6.8 mph SE
Humidity34%
Visibility—
Dew point38°
Sat, 2471° / 49°0
Morning55°feels 52°
Afternoon68°feels 67°
Evening57°feels 55°
Overnight53°feels 51°
71 °
St. Clair, Saturday, 24 October
Clear. High 71°, low 49°.
Pressure30.33 inHg
Wind10.3 mph SE
Humidity33%
Visibility—
Dew point37°
Sun, 2569° / 50°0
Morning56°feels 54°
Afternoon67°feels 65°
Evening56°feels 54°
Overnight53°feels 51°
69 °
St. Clair, Sunday, 25 October
Overcast. High 69°, low 50°.
Pressure30.36 inHg
Wind10.7 mph SE
Humidity39%
Visibility—
Dew point41°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in St. Clair, MI around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.