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.

A Few Clouds

81°F

27°C

Humidity 44%
Wind Speed SE 12 mph
Barometer 29.77 in (1007.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Oct 4:54 pm CDT
Extended Forecast for

Hamburg IL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South wind 7 to 9 mph.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before noon, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 73. Southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 10pm, then showers likely. Low around 49. South wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Sunny, with a high near 61. Northwest wind 11 to 14 mph, with gusts as high as 30 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. Light and variable wind becoming south around 6 mph after midnight.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 70.

    High: 70 °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 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South wind 7 to 9 mph.
Saturday
Showers and thunderstorms likely, mainly before noon, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 73. Southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
Showers and possibly a thunderstorm before 10pm, then showers likely. Low around 49. South wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%.
Sunday
Sunny, with a high near 61. Northwest wind 11 to 14 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 45. Light and variable wind becoming south around 6 mph after midnight.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 39.
Wednesday
Sunny, with a high near 63.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 46.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 67.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamburg IL
 39.23°N 90.69°W (Elev. 676 ft)
Last Update:
4:16 pm CDT Oct 17, 2025
Forecast Valid:
5pm CDT Oct 17, 2025-6pm CDT Oct 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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