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

56°F

13°C

Humidity 34%
Wind Speed W 9 mph
Barometer 30.02 in (1016.8 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 2 May 6:56 pm CDT
Extended Forecast for

Nachusa IL

  • Tonight

    Tonight: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 41. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 41 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 67. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 67 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. West wind 5 to 10 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 4pm. Sunny, with a high near 76. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 76 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 48. Southwest wind around 10 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 10 percent chance of showers after 5am. Partly cloudy, with a low around 41. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
A 40 percent chance of showers, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 67. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 44. West wind 5 to 10 mph.
Monday
A 20 percent chance of showers after 4pm. Sunny, with a high near 76. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 48. Southwest wind around 10 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 56.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 39.
Thursday
A chance of showers after 1pm. Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
6:01 pm CDT May 2, 2026
Forecast Valid:
7pm CDT May 2, 2026-6pm CDT May 9, 2026
 
Forecast Discussion
 
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Additional Resources

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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