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.

Fair

41°F

5°C

Humidity 60%
Wind Speed W 8 mph
Barometer 30.34 in (1027.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 12 Mar 9:54 am CDT
Extended Forecast for

Defiance MO

  • Today

    Today: Sunny, with a high near 57. West wind 7 to 11 mph becoming southwest in the afternoon.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Breezy, with a south wind 10 to 20 mph, with gusts as high as 37 mph.

    Low: 44 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 61. West wind 13 to 15 mph, with gusts as high as 28 mph.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. East wind 5 to 9 mph.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 1pm. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Rain

  • Sunday Night

    Sunday Night: Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 60%.

    Low: 21 °F

    Rain/Snow
    Likely and
    Blustery

  • Monday

    Monday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 57. West wind 7 to 11 mph becoming southwest in the afternoon.
Tonight
Partly cloudy, with a low around 44. Breezy, with a south wind 10 to 20 mph, with gusts as high as 37 mph.
Friday
Mostly sunny, with a high near 61. West wind 13 to 15 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 66. East wind 5 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 68. Chance of precipitation is 80%.
Sunday Night
Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Defiance MO
 38.63°N 90.8°W (Elev. 522 ft)
Last Update:
10:41 am CDT Mar 12, 2026
Forecast Valid:
10am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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