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.

Fog/Mist

68°F

20°C

Humidity 93%
Wind Speed Calm
Barometer 30.03 in (1016.5 mb)
Dewpoint 66°F (19°C)
Visibility 6.00 mi
Last update 15 Jun 5:54 am CDT
Extended Forecast for

2 Miles NNW Carrollton IL

  • Today

    Today: Patchy fog before 7am. Otherwise, partly sunny, with a high near 82. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 82 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Northeast wind around 6 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 10am. Partly sunny, with a high near 84. East wind 3 to 5 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. Light and variable wind becoming south around 5 mph after midnight.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. South wind 5 to 8 mph.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 7am. Otherwise, partly sunny, with a high near 82. Calm wind becoming northeast 5 to 7 mph in the morning.
Tonight
Mostly cloudy, with a low around 67. Northeast wind around 6 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 10am. Partly sunny, with a high near 84. East wind 3 to 5 mph.
Monday Night
Partly cloudy, with a low around 68. Light and variable wind becoming south around 5 mph after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. South wind 5 to 8 mph.
Tuesday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 67.
Juneteenth
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Carrollton IL
 39.31°N 90.43°W (Elev. 610 ft)
Last Update:
5:22 am CDT Jun 15, 2025
Forecast Valid:
5am CDT Jun 15, 2025-6pm CDT Jun 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation