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

50°F

10°C

Humidity 80%
Wind Speed W 18 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 28 Apr 8:56 am CDT
Extended Forecast for

Nachusa IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 64. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 64 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Isolated showers after 1am. Mostly cloudy, with a low around 45. Northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then becoming sunny, with a high near 59. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. North northwest wind 5 to 10 mph becoming west after midnight.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 58. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 58 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy frost after 3am. Otherwise, partly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 58.

    High: 58 °F

    Areas Frost
    then Mostly
    Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 64. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Isolated showers after 1am. Mostly cloudy, with a low around 45. Northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy through mid morning, then becoming sunny, with a high near 59. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 39. North northwest wind 5 to 10 mph becoming west after midnight.
Thursday
Partly sunny, with a high near 58. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 54.
Friday Night
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 35.
Saturday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
A chance of showers. Partly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
5:46 am CDT Apr 28, 2026
Forecast Valid:
9am CDT Apr 28, 2026-6pm CDT May 4, 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