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

72°F

22°C

Humidity 87%
Wind Speed Calm
Barometer 30.00 in (1015.4 mb)
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 14 Oct 6:54 pm CDT
Extended Forecast for

Defiance MO

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%.

    Low: 66 °F

    Cloudy then
    Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 1pm. High near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%.

    High: 82 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 47. Northwest wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 56. Northwest wind 14 to 16 mph, with gusts as high as 30 mph.

    High: 56 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. North wind 5 to 11 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms, mainly before 1pm. High near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 47. Northwest wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Friday
Mostly cloudy, with a high near 56. Northwest wind 14 to 16 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 39. North wind 5 to 11 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Defiance MO
 38.63°N 90.77°W (Elev. 479 ft)
Last Update:
7:26 pm CDT Oct 14, 2026
Forecast Valid:
7pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation