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

61°F

16°C

Humidity 81%
Wind Speed E 5 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Oct 2:54 am CDT
Extended Forecast for

2 Miles N Old Monroe MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 61. Southeast wind around 7 mph.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 84. South wind 7 to 10 mph.

    High: 84 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South wind around 8 mph.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 78. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 48. Southwest wind 8 to 13 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers. Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 61. Southeast wind around 7 mph.
Friday
Partly sunny, with a high near 84. South wind 7 to 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South wind around 8 mph.
Saturday
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 78. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 48. Southwest wind 8 to 13 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%.
Sunday
Sunny, with a high near 65.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 74.
Monday Night
A 40 percent chance of showers. Partly cloudy, with a low around 49.
Tuesday
A 20 percent chance of showers before 1pm. Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Old Monroe MO
 38.97°N 90.73°W (Elev. 433 ft)
Last Update:
1:16 am CDT Oct 17, 2025
Forecast Valid:
3am CDT Oct 17, 2025-6pm CDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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