Weather in Ballwin, MO
Updated 2026-08-11 12:30 local time · ZIP codes 63011, 63021
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
90°2% rain100°1% rain101°1% rain96°1% rain103°1% rain101°1% rain98°1% rain93°2% rain88°2% rain
85°2% rain83°3% rain82°4% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 4%).
It feels like 97°F with winds near 11 mph.
88°F, 2% rain chance and 6 mph wind.
Visibility is around 10 mi; gusts may reach 13 mph.
Current temperature is 90°F, wind 11 mph, rain chance up to 4%.
UV index is 8. Sunscreen, shade and protective clothing are recommended.
Ballwin weather today
Sunny and 90°F in Ballwin, MO. Today's high is 103°F with a 4% rain chance. Winds are around 11 mph with gusts near 12 mph. Relative humidity is 59%, pressure is 29.97 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Ballwin
Sunrise is at 06:12 AM and sunset is at 08:01 PM. Tomorrow's forecast calls for Sunny with a high near 99°F and a low near 79°F. The maximum rain chance is 4%.