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.

Fog/Mist

69°F

21°C

Humidity 96%
Wind Speed NW 3 mph
Barometer 30.02 in (1016.2 mb)
Dewpoint 68°F (20°C)
Visibility 6.00 mi
Last update 14 Oct 8:54 pm CDT
Extended Forecast for

Hamburg IL

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 5am. Cloudy, with a low around 64. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.

    Low: 64 °F

    Cloudy then
    Scattered
    Showers

  • Thursday

    Thursday: Showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and noon, then a chance of showers and thunderstorms after noon. High near 78. East wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 78 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 47. Northwest wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    Low: 47 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Northwest wind around 17 mph, with gusts as high as 34 mph.

    High: 55 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. North wind 6 to 15 mph, with gusts as high as 29 mph.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly after 5am. Cloudy, with a low around 64. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and noon, then a chance of showers and thunderstorms after noon. High near 78. East wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 47. Northwest wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 55. Northwest wind around 17 mph, with gusts as high as 34 mph.
Friday Night
Partly cloudy, with a low around 40. North wind 6 to 15 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 60.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamburg IL
 39.23°N 90.69°W (Elev. 676 ft)
Last Update:
8:25 pm CDT Oct 14, 2026
Forecast Valid:
9pm CDT Oct 14, 2026-6pm CDT Oct 21, 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