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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

A Few Clouds

67°F

19°C

Humidity 57%
Wind Speed W 6 mph
Barometer 29.96 in (1014.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 12 May 9:54 pm CDT
Extended Forecast for

4 Miles E Defiance MO

  • Tonight

    Tonight: A slight chance of showers between midnight and 1am. Mostly cloudy early, then gradual clearing, with a low around 57. Light and variable wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 20%.

    Low: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 76. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 49. North wind around 6 mph becoming calm in the evening.

    Low: 49 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. Southeast wind around 9 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

    High: 90 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers between midnight and 1am. Mostly cloudy early, then gradual clearing, with a low around 57. Light and variable wind becoming west 5 to 7 mph after midnight. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 76. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 49. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 78. Calm wind becoming southeast around 6 mph in the afternoon.
Thursday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 59. Southeast wind around 9 mph, with gusts as high as 21 mph.
Friday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 90.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Saturday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Defiance MO
 38.63°N 90.71°W (Elev. 564 ft)
Last Update:
9:21 pm CDT May 12, 2026
Forecast Valid:
10pm CDT May 12, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation