Live Weather & Forecast

Weather in Ballwin

Missouri, United States · Real-time conditions & 3-day outlook

Flag of United States
Sunny
25°C
Feels like 26°C
78°F / Feels 79°F
Sunny
Ballwin, Missouri
🌞 Daytime
Updated: 2026-04-12 11:30
💧
Humidity
45%
💨
Wind
23 km/h SSW
🌬️
Wind Gust
26.5 km/h
🌡️
Pressure
1017 mb
👁️
Visibility
16 km
☀️
UV Index
5.7 (Moderate)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
0%
💦
Dew Point
16.5°C
🌐
Wind Degree
201°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
151.9 μg/m³
NO₂
2.3 μg/m³
O₃
113 μg/m³
SO₂
1.7 μg/m³
PM 2.5
6.3 μg/m³
PM 10
6.9 μg/m³

Weather Alerts 1

Met · Severe · Immediate
Flood Warning issued April 11 at 9:46PM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Clarksville....

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Effective: 2026-04-11T21:46:00-05:00  ·  Expires: 2026-04-13T10:00:00-05:00

Today's Hourly Forecast

24-hour breakdown for Ballwin, Missouri

12 AM
Clear
17°
Clear
💧 71% 💨 12.6 km/h
1 AM
Clear
16°
Clear
💧 73% 💨 10.8 km/h
2 AM
Clear
16°
Clear
💧 79% 💨 11.5 km/h
3 AM
Clear
16°
Clear
💧 80% 💨 9.7 km/h
4 AM
Clear
15°
Clear
💧 80% 💨 9.7 km/h
5 AM
Clear
15°
Clear
💧 79% 💨 10.1 km/h
6 AM
Clear
15°
Clear
💧 79% 💨 10.8 km/h
7 AM
Sunny
16°
Sunny
💧 80% 💨 12.6 km/h
8 AM
Sunny
18°
Sunny
💧 81% 💨 14.8 km/h
9 AM
Sunny
21°
Sunny
💧 65% 💨 18 km/h
10 AM
Sunny
24°
Sunny
💧 57% 💨 20.5 km/h
11 AM
Sunny
25°
Sunny
💧 45% 💨 23 km/h
12 PM
Sunny
28°
Sunny
💧 47% 💨 23.8 km/h
1 PM
Sunny
29°
Sunny
💧 43% 💨 25.9 km/h
2 PM
Sunny
29°
Sunny
💧 38% 💨 24.5 km/h
3 PM
Sunny
30°
Sunny
💧 35% 💨 17.3 km/h
4 PM
Sunny
28°
Sunny
💧 39% 💨 20.2 km/h
5 PM
Overcast
27°
Overcast
💧 44% 💨 18.7 km/h
6 PM
Cloudy
25°
Cloudy
💧 45% 💨 22.7 km/h
7 PM
Overcast
24°
Overcast
💧 53% 💨 22 km/h
8 PM
Cloudy
24°
Cloudy
💧 46% 💨 23 km/h
9 PM
Overcast
22°
Overcast
💧 46% 💨 24.5 km/h
10 PM
Overcast
21°
Overcast
💧 68% 💨 23.8 km/h
11 PM
Overcast
19°
Overcast
💧 73% 💨 24.8 km/h

3-Day Forecast

Daily overview for Ballwin, Missouri

Today
Sunny
Sunny
31° / 15°
🌧️ 0% chance of rain
💧 Avg. humidity: 60%
💨 Max wind: 25.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:30 AM
🌇 Sunset: 07:37 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
Overcast
31° / 17°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 24.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:29 AM
🌇 Sunset: 07:38 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
Thundery outbreaks in nearby
27° / 21°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 25.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:28 AM
🌇 Sunset: 07:39 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Ballwin

Plan your trip to Ballwin, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Ballwin 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Ballwin?
Current conditions in Ballwin: Sunny, temperature 25°C, humidity 45%.
What is the best time to visit Ballwin?
The best time to visit Ballwin is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Ballwin?
Ballwin is located at approximately 38.6° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Ballwin?
The wettest period in Ballwin is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Ballwin?
For visits to Ballwin during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Ballwin in?
Ballwin is located in United States, in the state of Missouri.
What are the public holidays in Ballwin in 2026?
View the 2026 public holidays for Ballwin on our Holidays page.
What are the GPS coordinates used for the weather forecast in Ballwin?
The weather forecast for Ballwin uses coordinates 38.5962, -90.5387.