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.

Fair

72°F

22°C

Humidity 64%
Wind Speed SE 6 mph
Barometer 29.99 in (1014.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Oct 9:54 pm CDT
Extended Forecast for

4 Miles NNW Defiance MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Southeast wind around 7 mph.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 83. South wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 65. South wind around 8 mph.

    Low: 65 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 78. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 49. Southwest wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers. Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 62. Southeast wind around 7 mph.
Friday
Partly sunny, with a high near 83. South wind 6 to 9 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 65. South wind around 8 mph.
Saturday
Showers and possibly a thunderstorm. High near 78. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 49. Southwest wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Sunday
Sunny, with a high near 64.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 74.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 49.
Tuesday
A 20 percent chance of showers before 1pm. Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Defiance MO
 38.7°N 90.8°W (Elev. 676 ft)
Last Update:
7:26 pm CDT Oct 16, 2025
Forecast Valid:
10pm CDT Oct 16, 2025-6pm CDT Oct 23, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation