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.

Thunderstorm in Vicinity Light Rain

65°F

18°C

Humidity 97%
Wind Speed Calm
Barometer 29.67 in (1004.2 mb)
Dewpoint 64°F (18°C)
Visibility 7.00 mi
Last update 18 Oct 4:54 pm CDT
Extended Forecast for

2 Miles ESE Hardin IL

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. Steady temperature around 67. Southwest wind around 9 mph. Chance of precipitation is 100%.

    High: 67 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 50. Breezy, with a northwest wind 7 to 12 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%.

    Low: 50 °F

    Showers then
    Showers
    Likely and
    Breezy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 65. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 32 mph.

    High: 65 °F

    Becoming
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 43. West wind 5 to 7 mph becoming calm in the evening.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71. South wind 6 to 16 mph, with gusts as high as 29 mph.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64. Breezy.

    High: 64 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Steady temperature around 67. Southwest wind around 9 mph. Chance of precipitation is 100%.
Tonight
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 50. Breezy, with a northwest wind 7 to 12 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 65. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 32 mph.
Sunday Night
Clear, with a low around 43. West wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 71. South wind 6 to 16 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 64. Breezy.
Tuesday Night
Clear, with a low around 42.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Clear, with a low around 38.
Thursday
Sunny, with a high near 67.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 47.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 62.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Hardin IL
 39.14°N 90.58°W (Elev. 430 ft)
Last Update:
4:16 pm CDT Oct 18, 2025
Forecast Valid:
5pm CDT Oct 18, 2025-6pm CDT Oct 25, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation