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

45°F

7°C

Humidity 62%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 30 Mar 12:55 am CDT
Extended Forecast for

Thomson IL

  • Overnight

    Overnight: Mostly clear, with a low around 46. South wind around 5 mph.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. Southwest wind 5 to 10 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Scattered showers and thunderstorms, mainly between 2am and 5am. Mostly cloudy, with a low around 60. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Mostly Cloudy
    then
    Scattered
    T-storms

  • Tuesday

    Tuesday: Isolated showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain and snow showers. Low around 34. Breezy. Chance of precipitation is 80%.

    Low: 34 °F

    Rain/Snow and
    Breezy

  • Thursday

    Thursday: Rain and snow showers likely, becoming all rain after 1pm. Cloudy, with a high near 48. Breezy. Chance of precipitation is 70%.

    High: 48 °F

    Rain/Snow
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 46. South wind around 5 mph.
Monday
Sunny, with a high near 78. Southwest wind 5 to 10 mph.
Monday Night
Scattered showers and thunderstorms, mainly between 2am and 5am. Mostly cloudy, with a low around 60. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday
Isolated showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 38.
Wednesday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 46.
Wednesday Night
Rain and snow showers. Low around 34. Breezy. Chance of precipitation is 80%.
Thursday
Rain and snow showers likely, becoming all rain after 1pm. Cloudy, with a high near 48. Breezy. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 35.
Friday
Mostly cloudy, with a high near 56.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44.
Saturday
Showers likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 39. Breezy. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 53. Breezy.
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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:
11:42 pm CDT Mar 29, 2026
Forecast Valid:
1am CDT Mar 30, 2026-6pm CDT Apr 5, 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