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

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

32°F

0°C

Humidity 82%
Wind Speed E 6 mph
Barometer 30.23 in (1024.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 2 Mar 8:56 pm CST
Extended Forecast for

Lanark IL

  • Tonight

    Tonight: A slight chance of rain between 1am and 5am. Cloudy, with a low around 33. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Cloudy then
    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain between 9am and noon. Cloudy, with a high near 45. East wind around 5 mph becoming calm in the afternoon.

    High: 45 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 31. Northeast wind around 5 mph.

    Low: 31 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain. Mostly sunny, with a high near 53. East wind around 5 mph.

    High: 53 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly before noon. Cloudy, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Rain

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Rain

Detailed Forecast

Tonight
A slight chance of rain between 1am and 5am. Cloudy, with a low around 33. Southeast wind around 5 mph. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of rain between 9am and noon. Cloudy, with a high near 45. East wind around 5 mph becoming calm in the afternoon.
Tuesday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 31. Northeast wind around 5 mph.
Wednesday
A 40 percent chance of rain. Mostly sunny, with a high near 53. East wind around 5 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
Rain likely, mainly before noon. Cloudy, with a high near 56. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 41.
Friday
Rain. High near 64. Chance of precipitation is 90%.
Friday Night
Rain and possibly a thunderstorm. Low around 49. Chance of precipitation is 80%.
Saturday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 61.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lanark IL
 42.11°N 89.83°W (Elev. 883 ft)
Last Update:
8:52 pm CST Mar 2, 2026
Forecast Valid:
9pm CST Mar 2, 2026-6pm CDT Mar 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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