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.

Fair

67°F

19°C

Humidity 81%
Wind Speed S 13 mph
Barometer 29.85 in (1010.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 6 Mar 11:54 pm CST
Extended Forecast for

Hamburg IL

Severe T-storm Watch until March 7, 06:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until March 7, 06:00am

    NOW until 6:00am Sat

    Severe T-storm Watch

  • Overnight

    Low: 59 °F

    Severe
    Thunderstorms
    and Breezy

  • Saturday

    Saturday: Showers likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 51 by 5pm. South wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    High: 62 °F⇓

    Showers
    Likely then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 35. Northwest wind 5 to 7 mph becoming light and variable.

    Low: 35 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny, with a high near 65. Southwest wind 5 to 8 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. South wind 6 to 8 mph.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after midnight. Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Chance Rain
    then Rain

Detailed Forecast

Overnight
Rain and possibly a thunderstorm. Some of the storms could be severe. Low around 59. Breezy, with a south wind 15 to 20 mph decreasing to 7 to 12 mph. Winds could gust as high as 37 mph. Chance of precipitation is 100%.
Saturday
Showers likely, mainly before 8am. Mostly cloudy, with a temperature falling to around 51 by 5pm. South wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Saturday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 35. Northwest wind 5 to 7 mph becoming light and variable.
Sunday
Sunny, with a high near 65. Southwest wind 5 to 8 mph.
Sunday Night
Clear, with a low around 46. South wind 6 to 8 mph.
Monday
Sunny, with a high near 76.
Monday Night
A 30 percent chance of rain after midnight. Mostly clear, with a low around 57.
Tuesday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 78. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before noon. Cloudy, with a high near 60. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 64.
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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:
12:25 am CST Mar 7, 2026
Forecast Valid:
12am CST Mar 7, 2026-6pm CDT Mar 13, 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