10-day forecast for St. Clair, MI: 39° to 68°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
68°
Best day: Wednesday, October 28
64° · 0.15 in
Worst day: Thursday, November 5
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 2968° / 51°0.08
Morning53°feels 52°
Afternoon68°feels 67°
Evening57°feels 57°
Overnight53°feels 52°
68 °
St. Clair, Thursday, 29 October
Light rain. High 68°, low 51°.
Pressure30.06 inHg
Wind10.6 mph SW
Humidity64%
Visibility6.2 mi
Dew point52°
Fri, 3056° / 43°0
Morning43°feels 40°
Afternoon55°feels 53°
Evening47°feels 47°
Overnight49°feels 46°
56 °
St. Clair, Friday, 30 October
Mostly clear. High 56°, low 43°.
Pressure30.33 inHg
Wind5.8 mph N
Humidity61%
Visibility6.2 mi
Dew point40°
Sat, 3159° / 42°0
Morning45°feels 43°
Afternoon59°feels 57°
Evening53°feels 52°
Overnight42°feels 42°
59 °
St. Clair, Saturday, 31 October
Overcast. High 59°, low 42°.
Pressure30.42 inHg
Wind6 mph SE
Humidity76%
Visibility6.2 mi
Dew point46°
Sun, 0162° / 47°0
Morning49°feels 49°
Afternoon60°feels 58°
Evening50°feels 49°
Overnight51°feels 50°
62 °
St. Clair, Sunday, 1 November
Overcast. High 62°, low 47°.
Pressure30.33 inHg
Wind4.3 mph NE
Humidity56%
Visibility—
Dew point44°
Mon, 0264° / 42°0
Morning48°feels 48°
Afternoon62°feels 61°
Evening54°feels 52°
Overnight49°feels 48°
64 °
St. Clair, Monday, 2 November
Overcast. High 64°, low 42°.
Pressure30.27 inHg
Wind4.9 mph SE
Humidity55%
Visibility—
Dew point44°
Tue, 0358° / 50°0
Morning52°feels 51°
Afternoon56°feels 55°
Evening53°feels 52°
Overnight53°feels 52°
58 °
St. Clair, Tuesday, 3 November
Overcast. High 58°, low 50°.
Pressure30.12 inHg
Wind13.1 mph E
Humidity80%
Visibility—
Dew point49°
Wed, 0460° / 51°0
Morning54°feels 53°
Afternoon60°feels 59°
Evening57°feels 56°
Overnight55°feels 54°
60 °
St. Clair, Wednesday, 4 November
Overcast. High 60°, low 51°.
Pressure30.00 inHg
Wind16.7 mph SE
Humidity72%
Visibility—
Dew point50°
Thu, 0564° / 55°0.15
Morning60°feels 59°
Afternoon63°feels 63°
Evening58°feels 58°
Overnight57°feels 57°
64 °
St. Clair, Thursday, 5 November
Light rain. High 64°, low 55°.
Pressure29.65 inHg
Wind11 mph S
Humidity77%
Visibility—
Dew point56°
Fri, 0653° / 39°0.05
Morning48°feels 42°
Afternoon49°feels 46°
Evening41°feels 37°
Overnight40°feels 35°
53 °
St. Clair, Friday, 6 November
Light rain. High 53°, low 39°.
Pressure29.77 inHg
Wind18.9 mph N
Humidity54%
Visibility—
Dew point34°
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.