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

-4°F

-20°C

Humidity 86%
Wind Speed SE 3 mph
Barometer 30.21 in (1024.5 mb)
Dewpoint -7°F (-22°C)
Visibility 10.00 mi
Last update 4 Dec 9:56 pm CST
Extended Forecast for

Rock Falls IL

  • Tonight

    Tonight: Patchy fog. Otherwise, increasing clouds, with a temperature rising to around 6 by 4am. Wind chill values as low as -15. South wind 5 to 10 mph.

    Low: -1 °F⇑

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, increasing clouds, with a high near 29. Wind chill values as low as -5. South wind around 10 mph.

    High: 29 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: A slight chance of snow and freezing rain before midnight. Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Wintry Mix
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 28. West wind around 5 mph becoming calm in the morning.

    High: 28 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 19 °F

    Snow Likely

  • 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: Partly cloudy, with a low around -3.

    Low: -3 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

Detailed Forecast

Tonight
Patchy fog. Otherwise, increasing clouds, with a temperature rising to around 6 by 4am. Wind chill values as low as -15. South wind 5 to 10 mph.
Friday
Patchy fog before 9am. Otherwise, increasing clouds, with a high near 29. Wind chill values as low as -5. South wind around 10 mph.
Friday Night
A slight chance of snow and freezing rain before midnight. Mostly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 28. West wind around 5 mph becoming calm in the morning.
Saturday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday
A 30 percent chance of snow before noon. Partly sunny, with a high near 22.
Sunday Night
Partly cloudy, with a low around -3.
Monday
Partly sunny, with a high near 22.
Monday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 16.
Tuesday
Mostly cloudy, with a high near 32.
Tuesday Night
A 50 percent chance of snow. Cloudy, with a low around 26.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 34. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, with a low around 8.
Thursday
Partly sunny, with a high near 23.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rock Falls IL
 41.77°N 89.7°W (Elev. 643 ft)
Last Update:
8:41 pm CST Dec 4, 2025
Forecast Valid:
10pm CST Dec 4, 2025-6pm CST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation