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

37°F

3°C

Humidity 65%
Wind Speed NW 6 mph
Barometer 30.30 in (1026.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Mar 2:54 am CDT
Extended Forecast for

3 Miles NE Cave MO

  • Overnight

    Overnight: Clear, with a low around 29. Northwest wind around 6 mph.

    Low: 29 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 57. Light and variable wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. Breezy, with a south wind 13 to 21 mph, with gusts as high as 38 mph.

    Low: 44 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 58. West wind 16 to 18 mph, with gusts as high as 31 mph.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain and possibly a thunderstorm. High near 66. Chance of precipitation is 90%.

    High: 66 °F

    Rain

  • Sunday Night

    Sunday Night: Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 19. Blustery. Chance of precipitation is 60%.

    Low: 19 °F

    Rain/Snow
    Likely and
    Blustery

Detailed Forecast

Overnight
Clear, with a low around 29. Northwest wind around 6 mph.
Thursday
Sunny, with a high near 57. Light and variable wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 44. Breezy, with a south wind 13 to 21 mph, with gusts as high as 38 mph.
Friday
Partly sunny, with a high near 58. West wind 16 to 18 mph, with gusts as high as 31 mph.
Friday Night
Mostly cloudy, with a low around 35. Northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 63.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 53.
Sunday
Rain and possibly a thunderstorm. High near 66. Chance of precipitation is 90%.
Sunday Night
Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 19. Blustery. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 32. Breezy.
Monday Night
Mostly clear, with a low around 14.
Tuesday
Partly sunny, with a high near 39.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Cave MO
 39.06°N 91.01°W (Elev. 482 ft)
Last Update:
3:06 am CDT Mar 12, 2026
Forecast Valid:
3am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation