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.

28°F

-2°C

Humidity 75%
Wind Speed Calm
Barometer 30.66 in (1039.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 28 Mar 7:56 am CDT
Extended Forecast for

Nachusa IL

  • Today

    Today: Sunny, with a high near 50. West wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 63. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 70%.

    High: 77 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 50. West wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Partly cloudy, with a low around 38. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 63. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 47. South wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 77. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
A chance of showers. Partly sunny, with a high near 50.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
3:50 am CDT Mar 28, 2026
Forecast Valid:
8am CDT Mar 28, 2026-6pm CDT Apr 3, 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