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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. Some snow and a wintry mix is occurring today to the north. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Overcast

18°F

-8°C

Humidity 71%
Wind Speed Vrbl 5 mph
Barometer 29.96 in (1016.0 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 5 Dec 9:56 am CST
Extended Forecast for

5 Miles NNW Lanark IL

  • Today

    Today: Mostly cloudy, with a high near 28. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 28 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy snow and freezing rain before 11pm, then patchy freezing rain between 11pm and midnight. Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 30%.

    Low: 19 °F

    Patchy Wintry
    Mix then
    Mostly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 25. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 25 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Snow, mainly after midnight. Low around 13. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 13 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 30 percent chance of snow before noon. Partly sunny, with a high near 22.

    High: 22 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -3.

    Low: -3 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 20.

    High: 20 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 28. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Patchy snow and freezing rain before 11pm, then patchy freezing rain between 11pm and midnight. Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 30%.
Saturday
Increasing clouds, with a high near 25. Northwest wind around 5 mph becoming calm in the afternoon.
Saturday Night
Snow, mainly after midnight. Low around 13. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 30 percent chance of snow before noon. Partly sunny, with a high near 22.
Sunday Night
Mostly cloudy, with a low around -3.
Monday
Mostly cloudy, with a high near 20.
Monday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 12.
Tuesday
Mostly cloudy, with a high near 34.
Tuesday Night
Snow likely. Cloudy, with a low around 24. Chance of precipitation is 70%.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 8.
Thursday
Partly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Lanark IL
 42.17°N 89.86°W (Elev. 801 ft)
Last Update:
6:31 am CST Dec 5, 2025
Forecast Valid:
11am CST Dec 5, 2025-6pm CST Dec 11, 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