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

31°F

-1°C

Humidity 38%
Wind Speed W 8 mph
Barometer 30.48 in (1032.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 23 Feb 3:54 pm CST
Extended Forecast for

Paynesville MO

  • Tonight

    Tonight: Mostly clear, with a low around 19. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. South wind 8 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 36 mph.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. Calm wind becoming north around 5 mph.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 33. East wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 33 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

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

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 19. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Partly sunny, with a high near 55. South wind 8 to 16 mph becoming southwest in the afternoon. Winds could gust as high as 36 mph.
Tuesday Night
Mostly cloudy, with a low around 30. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 49. Calm wind becoming north around 5 mph.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 33. East wind 3 to 6 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 42.
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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:
2:51 pm CST Feb 23, 2026
Forecast Valid:
4pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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