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.

A Few Clouds

25°F

-4°C

Humidity 81%
Wind Speed W 18 mph
Barometer 29.97 in (1015.5 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 20 Feb 7:56 pm CST
Extended Forecast for

Nachusa IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 32. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 32 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 20. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A chance of flurries before noon. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 28 °F

    Chance
    Flurries and
    Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 15. North northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Mostly cloudy, with a high near 32. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20. Northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday
A chance of flurries before noon. Mostly cloudy, with a high near 28. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 15. North northwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A chance of rain after noon. Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
7:41 pm CST Feb 20, 2026
Forecast Valid:
8pm CST Feb 20, 2026-6pm CST Feb 27, 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