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

64°F

18°C

Humidity 60%
Wind Speed E 8 mph
Barometer 30.08 in (1018.4 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 10 Oct 8:54 am CDT
Extended Forecast for

2 Miles N Hardin IL

  • Today

    Today: Mostly sunny, with a high near 84. Light and variable wind becoming south around 6 mph in the morning.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. Southeast wind around 6 mph becoming calm in the evening.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 88. Light and variable wind.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South wind 3 to 5 mph.

    Low: 64 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 93. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 70.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 84. Light and variable wind becoming south around 6 mph in the morning.
Tonight
Partly cloudy, with a low around 54. Southeast wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 88. Light and variable wind.
Sunday Night
Mostly clear, with a low around 64. South wind 3 to 5 mph.
Columbus Day
Sunny, with a high near 93. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Monday Night
Clear, with a low around 70.
Tuesday
Sunny, with a high near 90.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 62.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 79. Chance of precipitation is 70%.
Wednesday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 52.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Hardin IL
 39.18°N 90.61°W (Elev. 420 ft)
Last Update:
8:36 am CDT Oct 10, 2026
Forecast Valid:
9am CDT Oct 10, 2026-6pm CDT Oct 16, 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