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

48°F

9°C

Humidity 54%
Wind Speed S 6 mph
Barometer 29.88 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 6 Dec 5:35 pm CST
Extended Forecast for

Saint Clair MO

  • Tonight

    Tonight: Cloudy, with a low around 33. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 33 °F

    Cloudy

  • Sunday

    Sunday: A slight chance of drizzle before 3pm, then a slight chance of snow between 3pm and 4pm. Cloudy, with a temperature rising to near 39 by 9am, then falling to around 31 during the remainder of the day. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 39 °F⇓

    Slight Chance
    Drizzle then
    Slight Chance
    Drizzle/Snow

  • Sunday Night

    Sunday Night: Cloudy, with a low around 19. North wind 5 to 10 mph.

    Low: 19 °F

    Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 36. Light and variable wind.

    High: 36 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Calm wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Cloudy, with a low around 33. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Sunday
A slight chance of drizzle before 3pm, then a slight chance of snow between 3pm and 4pm. Cloudy, with a temperature rising to near 39 by 9am, then falling to around 31 during the remainder of the day. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Cloudy, with a low around 19. North wind 5 to 10 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 36. Light and variable wind.
Monday Night
Partly cloudy, with a low around 25. Calm wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 40.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 9.
Saturday
Mostly sunny, with a high near 26.
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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:
4:56 pm CST Dec 6, 2025
Forecast Valid:
5pm CST Dec 6, 2025-6pm CST Dec 13, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation