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

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

30°F

-1°C

Humidity 49%
Wind Speed NW 12 G 18 mph
Barometer 30.46 in (1032.4 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 23 Feb 1:56 pm CST
Extended Forecast for

4 Miles N Lanark IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 27. Northwest wind 5 to 10 mph.

    High: 27 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 17. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 17 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, with a high near 41. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 40 mph.

    High: 41 °F

    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 18 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 21. New snow accumulation of around an inch possible.

    Low: 21 °F

    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 27. Northwest wind 5 to 10 mph.
Tonight
Increasing clouds, with a low around 17. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Tuesday
Cloudy, with a high near 41. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 40 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 18. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 21. New snow accumulation of around an inch possible.
Thursday
Mostly sunny, with a high near 40.
Thursday Night
Mostly clear, with a low around 24.
Friday
Mostly sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 26.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Lanark IL
 42.15°N 89.83°W (Elev. 850 ft)
Last Update:
1:46 pm CST Feb 23, 2026
Forecast Valid:
2pm CST Feb 23, 2026-6pm CST Mar 1, 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