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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

67°F

19°C

Humidity 47%
Wind Speed NW 9 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 13 May 2:54 am CDT
Extended Forecast for

3 Miles WSW Fieldon IL

  • Overnight

    Overnight: Clear, with a low around 56. Northwest wind around 8 mph.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Northwest wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. North wind 5 to 7 mph becoming calm in the evening.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Calm wind becoming south around 6 mph in the afternoon.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 56. Northwest wind around 8 mph.
Wednesday
Sunny, with a high near 73. Northwest wind 6 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Clear, with a low around 47. North wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 75. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Southeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 64.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Sunday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 70.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Tuesday
Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 80%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Fieldon IL
 39.09°N 90.55°W (Elev. 528 ft)
Last Update:
2:01 am CDT May 13, 2026
Forecast Valid:
3am CDT May 13, 2026-6pm CDT May 19, 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