10-day forecast for Cornwall, MO: 40° to 91°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
91°
Best day: Tuesday, October 13
75° · 0.5 in
Worst day: Wednesday, October 14
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 1391° / 63°0
Morning67°feels 66°
Afternoon90°feels 95°
Evening75°feels 76°
Overnight68°feels 67°
91 °
Cornwall, Tuesday, 13 October
Clear. High 91°, low 63°.
Pressure29.97 inHg
Wind8.7 mph SW
Humidity54%
Visibility6.2 mi
Dew point65°
Wed, 1475° / 70°0.5
Morning70°feels 72°
Afternoon75°feels 77°
Evening73°feels 75°
Overnight73°feels 74°
75 °
Cornwall, Wednesday, 14 October
Rain. High 75°, low 70°.
Pressure30.06 inHg
Wind3.3 mph SW
Humidity99%
Visibility1.8 mi
Dew point72°
Thu, 1584° / 70°0.13
Morning70°feels 72°
Afternoon82°feels 87°
Evening75°feels 76°
Overnight71°feels 73°
84 °
Cornwall, Thursday, 15 October
Light rain. High 84°, low 70°.
Pressure30.06 inHg
Wind8.6 mph SW
Humidity85%
Visibility5.0 mi
Dew point72°
Fri, 1671° / 53°0.09
Morning59°feels 58°
Afternoon60°feels 58°
Evening55°feels 53°
Overnight69°feels 70°
71 °
Cornwall, Friday, 16 October
Light rain. High 71°, low 53°.
Pressure30.33 inHg
Wind16.6 mph N
Humidity47%
Visibility6.2 mi
Dew point39°
Sat, 1762° / 44°0
Morning49°feels 45°
Afternoon59°feels 56°
Evening52°feels 50°
Overnight48°feels 46°
62 °
Cornwall, Saturday, 17 October
Clear. High 62°, low 44°.
Pressure30.47 inHg
Wind10.1 mph NE
Humidity42%
Visibility—
Dew point35°
Sun, 1866° / 40°0
Morning47°feels 46°
Afternoon62°feels 60°
Evening53°feels 51°
Overnight50°feels 48°
66 °
Cornwall, Sunday, 18 October
Clear. High 66°, low 40°.
Pressure30.33 inHg
Wind7.9 mph S
Humidity23%
Visibility—
Dew point23°
Mon, 1971° / 48°0
Morning54°feels 53°
Afternoon68°feels 68°
Evening63°feels 62°
Overnight58°feels 57°
71 °
Cornwall, Monday, 19 October
Overcast. High 71°, low 48°.
Pressure30.24 inHg
Wind9.7 mph S
Humidity60%
Visibility—
Dew point52°
Tue, 2078° / 58°0
Morning65°feels 65°
Afternoon75°feels 75°
Evening65°feels 65°
Overnight62°feels 62°
78 °
Cornwall, Tuesday, 20 October
Overcast. High 78°, low 58°.
Pressure30.18 inHg
Wind6.6 mph S
Humidity55%
Visibility—
Dew point57°
Wed, 2177° / 60°0
Morning64°feels 65°
Afternoon74°feels 74°
Evening66°feels 66°
Overnight63°feels 63°
77 °
Cornwall, Wednesday, 21 October
Mostly clear. High 77°, low 60°.
Pressure30.21 inHg
Wind9.3 mph SE
Humidity58%
Visibility—
Dew point58°
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 Cornwall, 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.