Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

47°F

8°C

Humidity 69%
Wind Speed NW 15 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 9 Jan 9:54 am CST
Extended Forecast for

4 Miles WNW Old Monroe MO

  • Today

    Today: Mostly cloudy, with a high near 49. Northwest wind 5 to 8 mph becoming light and variable  in the afternoon.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 2am.  Increasing clouds, with a low around 34. Calm wind becoming northwest 5 to 7 mph after midnight.

    Low: 34 °F

    Partly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 7am.  Cloudy through mid morning, then gradual clearing, with a high near 45. West wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 45 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 36. Northwest wind 5 to 13 mph, with gusts as high as 24 mph.

    High: 36 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Northwest wind 5 to 8 mph becoming light and variable in the afternoon.
Tonight
A 50 percent chance of rain, mainly after 2am. Increasing clouds, with a low around 34. Calm wind becoming northwest 5 to 7 mph after midnight.
Saturday
A 20 percent chance of rain before 7am. Cloudy through mid morning, then gradual clearing, with a high near 45. West wind 8 to 14 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 23. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 36. Northwest wind 5 to 13 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 41.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Old Monroe MO
 38.94°N 90.82°W (Elev. 525 ft)
9:01 am CST Jan 9, 2026
10am CST Jan 9, 2026-6pm CST Jan 15, 2026
 
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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