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Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Fair

25°F

-4°C

Humidity 99%
Wind Speed Calm
Barometer 30.40 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 15 Nov 4:35 am CST
Extended Forecast for

Thomson IL

  • Today

    Today: Sunny, with a high near 49. Calm wind.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 52. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 52 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. South wind around 5 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. Calm wind.
Tonight
Mostly clear, with a low around 28. Calm wind.
Monday
Increasing clouds, with a high near 52. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 33. South wind around 5 mph.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Mostly sunny, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 60.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Saturday
Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
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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:
3:51 am CST Nov 15, 2026
Forecast Valid:
4am CST Nov 15, 2026-6pm CST Nov 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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