10-day forecast for St. Clair, MO: 41° to 79°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
79°
Best day: Friday, October 23
58°
Worst day: Friday, October 16
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1758° / 42°0
Morning43°feels 39°
Afternoon58°feels 55°
Evening49°feels 48°
Overnight46°feels 42°
58 °
St. Clair, Saturday, 17 October
Clear. High 58°, low 42°.
Pressure30.56 inHg
Wind4.3 mph NE
Humidity44%
Visibility6.2 mi
Dew point33°
Sun, 1865° / 42°0
Morning43°feels 40°
Afternoon64°feels 61°
Evening52°feels 50°
Overnight44°feels 41°
65 °
St. Clair, Sunday, 18 October
Clear. High 65°, low 42°.
Pressure30.47 inHg
Wind6.1 mph SE
Humidity39%
Visibility6.2 mi
Dew point35°
Mon, 1968° / 41°0
Morning43°feels 41°
Afternoon67°feels 65°
Evening57°feels 55°
Overnight45°feels 43°
68 °
St. Clair, Monday, 19 October
Partly cloudy. High 68°, low 41°.
Pressure30.36 inHg
Wind2.6 mph SE
Humidity43%
Visibility6.2 mi
Dew point41°
Tue, 2068° / 45°0
Morning51°feels 51°
Afternoon65°feels 63°
Evening56°feels 55°
Overnight49°feels 48°
68 °
St. Clair, Tuesday, 20 October
Overcast. High 68°, low 45°.
Pressure30.33 inHg
Wind5.8 mph E
Humidity44%
Visibility—
Dew point41°
Wed, 2172° / 45°0
Morning52°feels 52°
Afternoon69°feels 67°
Evening60°feels 58°
Overnight55°feels 53°
72 °
St. Clair, Wednesday, 21 October
Clear. High 72°, low 45°.
Pressure30.27 inHg
Wind5 mph SE
Humidity38%
Visibility—
Dew point40°
Thu, 2279° / 55°0
Morning64°feels 62°
Afternoon75°feels 74°
Evening65°feels 64°
Overnight61°feels 60°
79 °
St. Clair, Thursday, 22 October
Overcast. High 79°, low 55°.
Pressure30.15 inHg
Wind4.6 mph SE
Humidity30%
Visibility—
Dew point41°
Fri, 2379° / 58°0
Morning64°feels 62°
Afternoon76°feels 75°
Evening65°feels 64°
Overnight61°feels 60°
79 °
St. Clair, Friday, 23 October
Partly cloudy. High 79°, low 58°.
Pressure30.15 inHg
Wind6.3 mph SE
Humidity31%
Visibility—
Dew point43°
Sat, 2477° / 56°0
Morning62°feels 60°
Afternoon75°feels 73°
Evening64°feels 63°
Overnight60°feels 59°
77 °
St. Clair, Saturday, 24 October
Overcast. High 77°, low 56°.
Pressure30.15 inHg
Wind7.1 mph SE
Humidity33%
Visibility—
Dew point43°
Sun, 2577° / 57°0
Morning63°feels 62°
Afternoon74°feels 73°
Evening63°feels 62°
Overnight60°feels 58°
77 °
St. Clair, Sunday, 25 October
Overcast. High 77°, low 57°.
Pressure30.12 inHg
Wind5.9 mph E
Humidity35%
Visibility—
Dew point44°
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, MO 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.