National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fog/Mist

48°F

9°C

Humidity 93%
Wind Speed SW 5 mph
Barometer 30.16 in (1021.6 mb)
Dewpoint 46°F (8°C)
Visibility 4.00 mi
Wind Chill46°F (8°C)
Last update 23 Nov 4:54 pm CST
Extended Forecast for

Ballwin MO

  • Tonight

    Tonight: Widespread dense fog after 11pm. Otherwise, cloudy, with a low around 45. Calm wind becoming southeast around 5 mph after midnight.

    Low: 45 °F

    Dense Fog

  • Monday

    Monday: Rain likely, mainly after 3pm. Patchy fog before 8am. Otherwise, cloudy, with a high near 57. Southeast wind 5 to 8 mph. Chance of precipitation is 70%.

    High: 57 °F

    Patchy Fog
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain, mainly before midnight. Patchy fog between 7pm and 1am. Low around 49. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%.

    Low: 49 °F

    Rain and
    Patchy Fog
    then Chance
    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 62. Calm wind becoming west 5 to 7 mph in the morning.

    High: 62 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. West wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread dense fog after 11pm. Otherwise, cloudy, with a low around 45. Calm wind becoming southeast around 5 mph after midnight.
Monday
Rain likely, mainly after 3pm. Patchy fog before 8am. Otherwise, cloudy, with a high near 57. Southeast wind 5 to 8 mph. Chance of precipitation is 70%.
Monday Night
Rain, mainly before midnight. Patchy fog between 7pm and 1am. Low around 49. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%.
Tuesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 62. Calm wind becoming west 5 to 7 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 35. West wind 6 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 28.
Thanksgiving Day
Sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 44.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
Rain and snow likely. Cloudy, with a high near 44. Chance of precipitation is 60%.
Saturday Night
Rain likely. Cloudy, with a low around 37. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Ballwin MO
 38.58°N 90.55°W (Elev. 584 ft)
Last Update:
4:36 pm CST Nov 23, 2025
Forecast Valid:
5pm CST Nov 23, 2025-6pm CST Nov 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation