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

90°F

32°C

Humidity 35%
Wind Speed E 9 mph
Barometer 30.08 in (1017.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 11 Sep 4:54 pm CDT
Extended Forecast for

2 Miles SSW Defiance MO

  • Tonight

    Tonight: Mostly clear, with a low around 65. Light and variable wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. Calm wind becoming south around 5 mph in the morning.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm after midnight.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96. Light south wind.

    High: 96 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95.

    High: 95 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 65. Light and variable wind.
Friday
Sunny, with a high near 94. Calm wind becoming south around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 67. Southeast wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 96. Light south wind.
Saturday Night
Partly cloudy, with a low around 68. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
Sunday Night
Mostly cloudy, with a low around 67.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Defiance MO
 38.61°N 90.8°W (Elev. 554 ft)
Last Update:
4:16 pm CDT Sep 11, 2025
Forecast Valid:
5pm CDT Sep 11, 2025-6pm CDT Sep 18, 2025
 
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Additional Resources

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