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

67°F

19°C

Humidity 76%
Wind Speed SW 8 mph
Barometer 29.83 in (1009.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 10 Mar 12:54 am CDT
Extended Forecast for

4 Miles NNW Defiance MO

  • Overnight

    Overnight: Mostly clear, with a low around 63. Southwest wind around 8 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. South wind 7 to 16 mph, with gusts as high as 28 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 52. Southwest wind 13 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Slight Chance
    T-storms then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature falling to around 49 by 5pm. Southwest wind 11 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.

    High: 67 °F⇓

    T-storms then
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 63. Southwest wind around 8 mph.
Tuesday
Sunny, with a high near 84. South wind 7 to 16 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 52. Southwest wind 13 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. Temperature falling to around 49 by 5pm. Southwest wind 11 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 46.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 50.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 64.
Sunday Night
A slight chance of rain and snow. Partly cloudy, with a low around 28. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Defiance MO
 38.7°N 90.8°W (Elev. 676 ft)
Last Update:
11:41 pm CDT Mar 9, 2026
Forecast Valid:
1am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
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Additional Resources

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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