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

SULLIVAN (KUUV)

Lat: 38.23°NLon: 91.16°WElev: 933ft.

Overcast

N/A

Humidity NA
Wind Speed N 3 mph
Barometer 30.11 in
Dewpoint N/A
Visibility 10.00 mi
Last update 14 Oct 11:35 pm CDT
Extended Forecast for

Saint Clair MO

  • Tonight

    Tonight: Scattered showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%.

    Low: 66 °F

    Scattered
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. High near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%.

    High: 78 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Increasing clouds, with a low around 43. Northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely

  • Friday

    Friday: Mostly cloudy, with a high near 54. Northwest wind 11 to 14 mph, with gusts as high as 26 mph.

    High: 54 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. Northwest wind 5 to 9 mph becoming light north after midnight. Winds could gust as high as 21 mph.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%.
Thursday
Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. High near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Increasing clouds, with a low around 43. Northwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Friday
Mostly cloudy, with a high near 54. Northwest wind 11 to 14 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 37. Northwest wind 5 to 9 mph becoming light north after midnight. Winds could gust as high as 21 mph.
Saturday
Sunny, with a high near 59.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Clair MO
 38.35°N 90.98°W (Elev. 715 ft)
Last Update:
10:21 pm CDT Oct 14, 2026
Forecast Valid:
11pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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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