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.

Partly Cloudy

41°F

5°C

Humidity 59%
Wind Speed NW 18 G 26 mph
Barometer 29.93 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 18 Apr 10:15 am CDT
Extended Forecast for

Thomson IL

  • Today

    Today: Mostly sunny, with a high near 49. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.

    High: 49 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 51. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 51 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost after 2am. Otherwise, mostly clear, with a low around 30. Northwest wind 5 to 10 mph becoming light north after midnight.

    Low: 30 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 49. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Tonight
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 51. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Widespread frost after 2am. Otherwise, mostly clear, with a low around 30. Northwest wind 5 to 10 mph becoming light north after midnight.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thomson IL
 41.96°N 90.1°W (Elev. 607 ft)
Last Update:
7:31 am CDT Apr 18, 2026
Forecast Valid:
10am CDT Apr 18, 2026-6pm CDT Apr 24, 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