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

39°F

4°C

Humidity 89%
Wind Speed SE 5 mph
Barometer 30.11 in (1019.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Jan 9:54 pm CST
Extended Forecast for

Defiance MO

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 3am. Mostly cloudy, with a steady temperature around 41. Calm wind becoming northwest 5 to 7 mph after midnight.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 47 °F

    Rain Likely
    then Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 9pm, then a slight chance of snow between 9pm and 10pm. Partly cloudy, with a low around 24. Northwest wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 39. Northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 23 mph.

    High: 39 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.

    Low: 26 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly after 3am. Mostly cloudy, with a steady temperature around 41. Calm wind becoming northwest 5 to 7 mph after midnight.
Saturday
Rain likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
A slight chance of rain before 9pm, then a slight chance of snow between 9pm and 10pm. Partly cloudy, with a low around 24. Northwest wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 39. Northwest wind 5 to 10 mph becoming light west in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 26. Calm wind becoming southwest around 5 mph after midnight.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 45.
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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:
10:31 pm CST Jan 9, 2026
Forecast Valid:
10pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
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Additional Resources

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Chance of Precipitation