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

71°F

22°C

Humidity 41%
Wind Speed Vrbl 5 mph
Barometer 29.65 in (1003.8 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Mar 8:56 pm CDT
Extended Forecast for

6 Miles SSE Harmon IL

  • Tonight

    Tonight: Partly cloudy, with a low around 51. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers between 11am and 4pm. Mostly cloudy, with a temperature falling to around 47 by 5pm. Breezy, with a north northeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 53 °F⇓

    Slight Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49. North northeast wind around 5 mph, with gusts as high as 10 mph.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. Calm wind becoming southeast around 5 mph after midnight. Winds could gust as high as 10 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
A slight chance of showers between 11am and 4pm. Mostly cloudy, with a temperature falling to around 47 by 5pm. Breezy, with a north northeast wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 49. North northeast wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 33. Calm wind becoming southeast around 5 mph after midnight. Winds could gust as high as 10 mph.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Mostly cloudy, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
Partly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Harmon IL
 41.64°N 89.51°W
Last Update:
8:56 pm CDT Mar 21, 2026
Forecast Valid:
9pm CDT Mar 21, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation