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.

Overcast

23°F

-5°C

Humidity 65%
Wind Speed Vrbl 6 mph
Barometer 29.89 in (1013.5 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 5 Dec 11:56 am CST
Extended Forecast for

Nachusa IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 27. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 27 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy snow and freezing rain before midnight. Mostly cloudy, with a steady temperature around 26. South southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 26 °F

    Patchy Wintry
    Mix then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a temperature falling to around 20 by 7am. Northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 10 mph.

    High: 23 °F⇓

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow, mainly after midnight. Low around 15. Light east southeast wind becoming east northeast 5 to 10 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 15 °F

    Chance Snow
    then Snow

  • Sunday

    Sunday: A 40 percent chance of snow before noon. Partly sunny, with a high near 23. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 23 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 27. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Patchy snow and freezing rain before midnight. Mostly cloudy, with a steady temperature around 26. South southwest wind around 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a temperature falling to around 20 by 7am. Northwest wind around 5 mph becoming calm in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Snow, mainly after midnight. Low around 15. Light east southeast wind becoming east northeast 5 to 10 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday
A 40 percent chance of snow before noon. Partly sunny, with a high near 23. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around -1.
Monday
Partly sunny, with a high near 20.
Monday Night
A chance of snow. Mostly cloudy, with a low around 13.
Tuesday
Mostly cloudy, with a high near 35.
Tuesday Night
Snow likely. Cloudy, with a low around 27.
Wednesday
A chance of rain. Mostly cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 9.
Thursday
Partly sunny, with a high near 21.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
11:41 am CST Dec 5, 2025
Forecast Valid:
12pm CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation