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

81°F

27°C

Humidity 37%
Wind Speed Calm
Barometer 30.01 in (1015.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 19 Jun 1:54 pm CDT
Extended Forecast for

2 Miles SSE Fieldon IL

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. Northwest wind around 5 mph becoming calm.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Scattered showers, mainly after 4am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.

    Low: 63 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Saturday

    Saturday: Isolated showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 84. Light north wind. Chance of precipitation is 20%.

    High: 84 °F

    Isolated
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 65. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 60%.

    Low: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, then showers and thunderstorms after 7am. High near 79. Southeast wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%.

    High: 79 °F

    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 1am. Low around 63. Chance of precipitation is 80%.

    Low: 63 °F

    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 83. Northwest wind around 5 mph becoming calm.
Tonight
Scattered showers, mainly after 4am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 30%.
Saturday
Isolated showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 84. Light north wind. Chance of precipitation is 20%.
Saturday Night
A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 65. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 7am. High near 79. Southeast wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Sunday Night
Showers and thunderstorms, mainly before 1am. Low around 63. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Fieldon IL
 39.09°N 90.5°W (Elev. 600 ft)
Last Update:
2:31 pm CDT Jun 19, 2026
Forecast Valid:
2pm CDT Jun 19, 2026-6pm CDT Jun 25, 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