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

Hazardous Weather Conditions

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Fair

83°F

28°C

Humidity 27%
Wind Speed SW 10 mph
Barometer 29.66 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Mar 5:55 pm CDT
Extended Forecast for

Thomson IL

  • Tonight

    Tonight: Mostly clear, with a low around 47. Southwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Isolated showers between 11am and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 52 °F

    Isolated
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49. North wind around 5 mph.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 47. Southwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Sunday
Isolated showers between 11am and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 27. North wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 49. North wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly cloudy, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Partly sunny, with a high near 63.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thomson IL
 41.96°N 90.1°W (Elev. 607 ft)
Last Update:
5:36 pm CDT Mar 21, 2026
Forecast Valid:
6pm CDT Mar 21, 2026-6pm CDT Mar 28, 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