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.

Fair

30°F

-1°C

Humidity 69%
Wind Speed SW 6 mph
Barometer 30.45 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 11 Jan 10:15 pm CST
Extended Forecast for

Saint Clair MO

  • Tonight

    Tonight: Clear, with a low around 28. Southwest wind around 6 mph.

    Low: 28 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 53. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Calm wind becoming southwest 5 to 7 mph after midnight.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 61. West wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 61 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 38. West wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a temperature rising to near 41 by 10am, then falling to around 34 during the remainder of the day.

    High: 41 °F⇓

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 28. Southwest wind around 6 mph.
Monday
Sunny, with a high near 53. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 37. Calm wind becoming southwest 5 to 7 mph after midnight.
Tuesday
Increasing clouds, with a high near 61. West wind 7 to 10 mph, with gusts as high as 23 mph.
Tuesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 38. West wind 6 to 8 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a temperature rising to near 41 by 10am, then falling to around 34 during the remainder of the day.
Wednesday Night
Partly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 14.
Sunday
Sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Clair MO
 38.35°N 90.98°W (Elev. 715 ft)
Last Update:
7:47 pm CST Jan 11, 2026
Forecast Valid:
10pm CST Jan 11, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation