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

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

33°F

1°C

Humidity 78%
Wind Speed Calm
Barometer 30.11 in (1020.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 12 Jan 8:54 pm CST
Extended Forecast for

Paynesville MO

  • Tonight

    Tonight: Mostly clear, with a low around 38. Southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 58. West wind 9 to 13 mph, with gusts as high as 28 mph.

    High: 58 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 33. West wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 33 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 40. Northwest wind 13 to 16 mph, with gusts as high as 34 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. North wind 5 to 10 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 38. Southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.
Tuesday
Increasing clouds, with a high near 58. West wind 9 to 13 mph, with gusts as high as 28 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 9pm. Mostly cloudy, with a low around 33. West wind 10 to 15 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 40. Northwest wind 13 to 16 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 16. North wind 5 to 10 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 31.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Partly sunny, with a high near 26.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Paynesville MO
 39.26°N 90.89°W (Elev. 600 ft)
Last Update:
8:26 pm CST Jan 12, 2026
Forecast Valid:
9pm CST Jan 12, 2026-6pm CST Jan 19, 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