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.

Mostly Cloudy

81°F

27°C

Humidity 51%
Wind Speed N 6 mph
Barometer 30.07 in (1017.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 Aug 1:56 pm CDT
Extended Forecast for

6 Miles SSE Harmon IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 80. Northwest wind around 5 mph, with gusts as high as 15 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 78 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. West southwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Calm wind becoming north around 5 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. Northwest wind around 5 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 60. Calm wind.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. West southwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 78. Calm wind becoming north around 5 mph.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 78.
Friday Night
A chance of showers. Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Mostly sunny, with a high near 74.
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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:
2:46 pm CDT Aug 17, 2026
Forecast Valid:
2pm CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
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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