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

24°F

-4°C

Humidity 75%
Wind Speed W 16 G 28 mph
Barometer 30.24 in (1024.9 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 21 Feb 6:56 pm CST
Extended Forecast for

Nachusa IL

  • Tonight

    Tonight: A chance of flurries after 8pm. Cloudy, with a low around 17. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Chance
    Flurries

  • Sunday

    Sunday: Mostly cloudy, with a high near 26. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 26 °F

    Mostly Cloudy
    and Blustery

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 13. Wind chill values as low as -2. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 13 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 30. Wind chill values as low as -1. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 30 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.

    Low: 17 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Rain
    then Chance
    Snow

Detailed Forecast

Tonight
A chance of flurries after 8pm. Cloudy, with a low around 17. Northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, with a high near 26. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 13. Wind chill values as low as -2. Blustery, with a north northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 30. Wind chill values as low as -1. North northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 17. Light and variable wind becoming south 5 to 10 mph after midnight.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 22.
Thursday
A chance of snow before noon. Mostly sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 23.
Friday
Sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Partly sunny, with a high near 47.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
7:26 pm CST Feb 21, 2026
Forecast Valid:
7pm CST Feb 21, 2026-6pm CST Feb 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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