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 and Breezy

9°F

-13°C

Humidity 55%
Wind Speed W 22 G 32 mph
Barometer 30.30 in (1027.5 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 19 Jan 1:56 pm CST
Extended Forecast for

4 Miles WSW Harmon IL

  • M.L.King Day

    M.L.King Day: Patchy blowing snow. Mostly sunny and cold, with a high near 7. Wind chill values as low as -13. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 7 °F

    Patchy
    Blowing Snow
    and Breezy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 0. Wind chill values as low as -11. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 0 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 24. Wind chill values as low as -8. West southwest wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 24 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. South southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Snow Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 30 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -7.

    Low: -7 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near -1.

    High: -1 °F

    Cold

Detailed Forecast

M.L.King Day
Patchy blowing snow. Mostly sunny and cold, with a high near 7. Wind chill values as low as -13. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 0. Wind chill values as low as -11. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Tuesday
Increasing clouds, with a high near 24. Wind chill values as low as -8. West southwest wind 5 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 19. South southeast wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
Partly sunny, with a high near 30. West wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 21.
Thursday Night
Mostly cloudy, with a low around -7.
Friday
Partly sunny and cold, with a high near -1.
Friday Night
Mostly cloudy, with a low around -12.
Saturday
Partly sunny and cold, with a high near 4.
Saturday Night
Mostly cloudy, with a low around -7.
Sunday
Mostly sunny, with a high near 12.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Harmon IL
 41.71°N 89.62°W
Last Update:
3:11 pm CST Jan 19, 2026
Forecast Valid:
3pm CST Jan 19, 2026-6pm CST Jan 25, 2026
 
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