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

55°F

13°C

Humidity 33%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 28 Feb 12:35 am CST
Extended Forecast for

Saint Clair MO

  • Overnight

    Overnight: Mostly clear, with a low around 38. North wind around 6 mph.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of rain after 2pm. Partly sunny, with a high near 67. Light and variable wind becoming east around 6 mph.

    High: 67 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 29. Light and variable wind becoming north 5 to 7 mph in the evening.

    Low: 29 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Sunday

    Sunday: A slight chance of rain and snow between noon and 3pm, then a slight chance of rain after 3pm. Increasing clouds, with a high near 45. Northeast wind around 7 mph. Chance of precipitation is 20%.

    High: 45 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow before 3am, then rain, snow, and freezing rain. Low around 30. Northeast wind around 7 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Wintry Mix

  • Monday

    Monday: A chance of rain or freezing rain before 9am, then a chance of rain. Cloudy, with a high near 44. Chance of precipitation is 50%.

    High: 44 °F

    Chance
    Rain/Freezing
    Rain then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: Rain. Low around 36. Chance of precipitation is 80%.

    Low: 36 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, with thunderstorms also possible after midnight. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 38. North wind around 6 mph.
Saturday
A 30 percent chance of rain after 2pm. Partly sunny, with a high near 67. Light and variable wind becoming east around 6 mph.
Saturday Night
A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 29. Light and variable wind becoming north 5 to 7 mph in the evening.
Sunday
A slight chance of rain and snow between noon and 3pm, then a slight chance of rain after 3pm. Increasing clouds, with a high near 45. Northeast wind around 7 mph. Chance of precipitation is 20%.
Sunday Night
Rain and snow before 3am, then rain, snow, and freezing rain. Low around 30. Northeast wind around 7 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Monday
A chance of rain or freezing rain before 9am, then a chance of rain. Cloudy, with a high near 44. Chance of precipitation is 50%.
Monday Night
Rain. Low around 36. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.
Tuesday Night
Rain, with thunderstorms also possible after midnight. Low around 49. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. Cloudy, with a high near 66. Chance of precipitation is 70%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Partly sunny, with a high near 71.
Thursday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 54.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
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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:
12:25 am CST Feb 28, 2026
Forecast Valid:
12am CST Feb 28, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation