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.

Light Rain

70°F

21°C

Humidity 92%
Wind Speed SE 3 mph
Barometer 30.11 in
Dewpoint 67°F (19°C)
Visibility 5.00 mi
Last update 14 Aug 8:55 am CDT
Extended Forecast for

Thomson IL

Flood Watch August 14, 09:17am until August 15, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 14, 09:17am until August 15, 10:00am

    NOW until 10:00am Sat

    Flood Watch

  • Today

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Low around 69. East wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 69 °F

    Chance
    T-storms then
    Heavy Rain
    and Patchy
    Fog

  • Saturday

    Saturday: Showers and thunderstorms, mainly before 9am. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 86. Southeast wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 86 °F

    Heavy Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 80. East wind around 10 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Low around 69. East wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and thunderstorms, mainly before 9am. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 86. Southeast wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 64.
Monday
Mostly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 66.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 76.
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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:
4:01 am CDT Aug 14, 2026
Forecast Valid:
9am CDT Aug 14, 2026-6pm CDT Aug 20, 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