National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

37°F

3°C

Humidity 79%
Wind Speed Calm
Barometer 30.08 in (1019.1 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 12 Jan 4:56 pm CST
Extended Forecast for

3 Miles WSW Lyndon IL

  • Tonight

    Tonight: Increasing clouds, with a low around 33. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 48. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 48 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Blustery, with a west wind 10 to 20 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Blustery

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. Blustery, with a north wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 28 °F

    Partly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °F

    Snow Likely

  • Friday

    Friday: A 50 percent chance of snow after noon. Mostly cloudy, with a high near 35.

    High: 35 °F

    Cloudy then
    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 33. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly cloudy, with a high near 48. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 27. Blustery, with a west wind 10 to 20 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 28. Blustery, with a north wind 20 to 25 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 13.
Thursday
Mostly sunny, with a high near 27.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Friday
A 50 percent chance of snow after noon. Mostly cloudy, with a high near 35.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 11.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 18.
Saturday Night
Mostly cloudy, with a low around 3.
Sunday
Partly sunny, with a high near 17.
Sunday Night
Partly cloudy, with a low around 5.
M.L.King Day
Partly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Lyndon IL
 41.7°N 89.97°W (Elev. 594 ft)
Last Update:
4:31 pm CST Jan 12, 2026
Forecast Valid:
5pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation