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.

Fair

22°F

-6°C

Humidity 71%
Wind Speed N 3 mph
Barometer 30.05 in (1018.6 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 2 Jan 10:56 pm CST
Extended Forecast for

Nachusa IL

  • Tonight

    Tonight: Cloudy, with a low around 18. North wind around 5 mph becoming calm.

    Low: 18 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 29. Calm wind becoming west northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 29 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 15. Northwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.

    Low: 15 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 30. Calm wind becoming south southeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 30 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 18. North wind around 5 mph becoming calm.
Saturday
Mostly cloudy, with a high near 29. Calm wind becoming west northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Saturday Night
Mostly clear, with a low around 15. Northwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.
Sunday
Increasing clouds, with a high near 30. Calm wind becoming south southeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly cloudy, with a low around 26. South southeast wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 44.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 37.
Thursday
A chance of rain. Mostly cloudy, with a high near 51.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 37.
Friday
A chance of rain. Mostly cloudy, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
10:06 pm CST Jan 2, 2026
Forecast Valid:
11pm CST Jan 2, 2026-6pm CST Jan 9, 2026
 
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