National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Fair

55°F

13°C

Humidity 95%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Oct 8:15 am CDT
Extended Forecast for

Thomson IL

  • Today

    Today: Sunny, with a high near 81. South wind 5 to 10 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Clear, with a low around 68. South wind around 10 mph.

    Low: 68 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 81. South wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 64. South wind around 5 mph.
Columbus Day
Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 68. South wind around 10 mph.
Tuesday
Sunny, with a high near 79.
Tuesday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 57.
Wednesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 71.
Wednesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 54.
Thursday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thomson IL
 41.98°N 90.1°W (Elev. 600 ft)
Last Update:
5:41 am CDT Oct 11, 2026
Forecast Valid:
8am CDT Oct 11, 2026-6pm CDT Oct 17, 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