10-day forecast for Ballwin, MO: 43° to 79°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
78°
Best day: Saturday, October 24
56°
Worst day: Saturday, October 17
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1660° / 49°0.02
Morning52°feels 49°
Afternoon55°feels 53°
Evening52°feels 50°
Overnight60°feels 60°
60 °
Ballwin, Friday, 16 October
Light rain. High 60°, low 49°.
Pressure30.24 inHg
Wind17.2 mph NW
Humidity49%
Visibility6.2 mi
Dew point38°
Sat, 1756° / 43°0
Morning44°feels 41°
Afternoon55°feels 52°
Evening49°feels 49°
Overnight47°feels 43°
56 °
Ballwin, Saturday, 17 October
Clear. High 56°, low 43°.
Pressure30.59 inHg
Wind3.6 mph NE
Humidity47%
Visibility6.2 mi
Dew point33°
Sun, 1862° / 43°0
Morning44°feels 41°
Afternoon61°feels 59°
Evening53°feels 51°
Overnight45°feels 42°
62 °
Ballwin, Sunday, 18 October
Clear. High 62°, low 43°.
Pressure30.50 inHg
Wind6.3 mph S
Humidity45%
Visibility6.2 mi
Dew point38°
Mon, 1968° / 43°0
Morning47°feels 46°
Afternoon67°feels 65°
Evening57°feels 56°
Overnight46°feels 44°
68 °
Ballwin, Monday, 19 October
Clear. High 68°, low 43°.
Pressure30.36 inHg
Wind3.8 mph S
Humidity51%
Visibility6.2 mi
Dew point44°
Tue, 2069° / 45°0
Morning52°feels 51°
Afternoon67°feels 65°
Evening60°feels 59°
Overnight54°feels 53°
69 °
Ballwin, Tuesday, 20 October
Overcast. High 69°, low 45°.
Pressure30.30 inHg
Wind5.8 mph SE
Humidity40%
Visibility—
Dew point40°
Wed, 2173° / 48°0
Morning54°feels 54°
Afternoon69°feels 68°
Evening64°feels 62°
Overnight58°feels 57°
73 °
Ballwin, Wednesday, 21 October
Mostly clear. High 73°, low 48°.
Pressure30.27 inHg
Wind4 mph SE
Humidity40%
Visibility—
Dew point42°
Thu, 2276° / 56°0
Morning61°feels 59°
Afternoon73°feels 72°
Evening67°feels 66°
Overnight62°feels 60°
76 °
Ballwin, Thursday, 22 October
Partly cloudy. High 76°, low 56°.
Pressure30.24 inHg
Wind4.4 mph SE
Humidity28%
Visibility—
Dew point37°
Fri, 2377° / 58°0
Morning62°feels 60°
Afternoon74°feels 72°
Evening68°feels 66°
Overnight64°feels 62°
77 °
Ballwin, Friday, 23 October
Partly cloudy. High 77°, low 58°.
Pressure30.12 inHg
Wind8.2 mph SE
Humidity25%
Visibility—
Dew point35°
Sat, 2478° / 60°0
Morning64°feels 62°
Afternoon73°feels 72°
Evening68°feels 67°
Overnight64°feels 62°
78 °
Ballwin, Saturday, 24 October
Overcast. High 78°, low 60°.
Pressure30.18 inHg
Wind5.5 mph SE
Humidity32%
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 Ballwin, 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.