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.

Fair

41°F

5°C

Humidity 62%
Wind Speed Calm
Barometer 29.91 in (1012.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 6 May 4:56 am CDT
Extended Forecast for

Harmon ILSimilar City Names

  • Today

    Today: Partly sunny, with a high near 57. West northwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 57 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy frost after 1am. Otherwise, mostly clear, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 61. Light southwest wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 61 °F

    Sunny then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 65. South southwest wind 5 to 10 mph.

    High: 65 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 57. West northwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Patchy frost after 1am. Otherwise, mostly clear, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable in the evening.
Thursday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 61. Light southwest wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 44. South wind around 5 mph, with gusts as high as 15 mph.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 65. South southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 45.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harmon ILSimilar City Names
 41.73°N 89.56°W
Last Update:
2:36 am CDT May 6, 2026
Forecast Valid:
5am CDT May 6, 2026-6pm CDT May 12, 2026
 
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Additional Resources

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