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

74°F

23°C

Humidity 89%
Wind Speed S 6 mph
Barometer 29.91 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 3 Sep 5:15 am CDT
Extended Forecast for

4 Miles WSW Thomson IL

Heat Advisory September 3, 05:28am until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 05:28am until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Overnight

    Low: 74 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 93. Heat index values as high as 102. Southwest wind around 5 mph.

    High: 93 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 74. South wind around 5 mph becoming east after midnight. Chance of precipitation is 20%.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 92. Heat index values as high as 102. East wind around 5 mph becoming southwest in the afternoon.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Southwest wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 93. Heat index values as high as 102. Southwest wind around 5 mph.
Thursday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 74. South wind around 5 mph becoming east after midnight. Chance of precipitation is 20%.
Friday
Sunny, with a high near 92. Heat index values as high as 102. East wind around 5 mph becoming southwest in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 72.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Thomson IL
 41.94°N 90.19°W (Elev. 801 ft)
Last Update:
4:51 am CDT Sep 3, 2026
Forecast Valid:
5am CDT Sep 3, 2026-6pm CDT Sep 9, 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