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.

Fair

45°F

7°C

Humidity 44%
Wind Speed NE 12 mph
Barometer 30.08 in (1018.4 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 14 Mar 12:54 am CDT
Extended Forecast for

3 Miles ENE Hamburg IL

  • Overnight

    Overnight: Partly cloudy, with a low around 35. Northeast wind 3 to 6 mph.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 60. Southeast wind 7 to 11 mph, with gusts as high as 24 mph.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. South wind 9 to 14 mph, with gusts as high as 28 mph.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 66. South wind around 16 mph, with gusts as high as 39 mph. Chance of precipitation is 90%.

    High: 66 °F

    Chance Rain
    then Showers

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow. Some thunder is also possible. Low around 20. Blustery, with a northwest wind 18 to 24 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 20 °F

    Rain/Snow and
    Breezy then
    Snow and
    Blustery

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery.

    High: 26 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.

    Low: 27 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 35. Northeast wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 60. Southeast wind 7 to 11 mph, with gusts as high as 24 mph.
Saturday Night
Mostly cloudy, with a low around 52. South wind 9 to 14 mph, with gusts as high as 28 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 66. South wind around 16 mph, with gusts as high as 39 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow. Some thunder is also possible. Low around 20. Blustery, with a northwest wind 18 to 24 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Hamburg IL
 39.25°N 90.66°W (Elev. 699 ft)
Last Update:
11:46 pm CDT Mar 13, 2026
Forecast Valid:
1am CDT Mar 14, 2026-6pm CDT Mar 20, 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