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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Lanark IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 36. Southwest wind around 5 mph.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 62. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 62 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 36. Southwest wind around 5 mph.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 62. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 45. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 58. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 31.
Thursday
Partly sunny, with a high near 58.
Thursday Night
Showers likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A 30 percent chance of showers after noon. Partly sunny, with a high near 49.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lanark IL
 42.11°N 89.83°W (Elev. 883 ft)
Last Update:
7:41 pm CST Nov 3, 2025
Forecast Valid:
12am CST Nov 4, 2025-6pm CST Nov 10, 2025
 
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