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.

Mostly Cloudy

81°F

27°C

Humidity 77%
Wind Speed E 6 mph
Barometer 30.07 in (1017.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Jul 12:54 pm CDT
Extended Forecast for

5 Miles NE Hardin IL

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms after 3pm. Mostly cloudy, with a high near 85. Southeast wind around 6 mph. Chance of precipitation is 20%.

    High: 85 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 73 °F

    Scattered
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 101. Light and variable wind becoming southwest 5 to 8 mph in the morning.

    High: 91 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.

    Low: 75 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

    High: 92 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms after 3pm. Mostly cloudy, with a high near 85. Southeast wind around 6 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 101. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming southeast around 6 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Hardin IL
 39.18°N 90.55°W (Elev. 499 ft)
Last Update:
12:06 pm CDT Jul 18, 2025
Forecast Valid:
1pm CDT Jul 18, 2025-6pm CDT Jul 24, 2025
 
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