National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Storms with Impacts in the Northwest and Northeast U.S.

A Pacific storm will move across the Northwest U.S. through Thursday with low elevation rainfall, gusty winds, and mountain snows. A storm crossing the Northeast U.S. will continue gusty to high winds, scattered rain showers and limited snow showers into Thursday. Read More >

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Harmon IL

  • Tonight

    Tonight: Mostly clear, with a low around 30. West northwest wind around 5 mph becoming calm.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 59. Light southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 59 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 48. South wind 10 to 15 mph becoming west southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 64. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 15 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Rain likely, mainly after noon. Mostly cloudy, with a high near 50. Chance of precipitation is 70%.

    High: 50 °F

    Slight Chance
    Rain then
    Rain Likely

  • Saturday Night

    Saturday Night: A chance of rain and snow, mainly before midnight. Mostly cloudy, with a low around 24. Chance of precipitation is 50%.

    Low: 24 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 30. West northwest wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 59. Light southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 48. South wind 10 to 15 mph becoming west southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 64. West wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 36. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 15 mph.
Saturday
Rain likely, mainly after noon. Mostly cloudy, with a high near 50. Chance of precipitation is 70%.
Saturday Night
A chance of rain and snow, mainly before midnight. Mostly cloudy, with a low around 24. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 23.
Veterans Day
Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
Sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harmon IL
 41.73°N 89.56°W
Last Update:
9:00 pm CST Nov 5, 2025
Forecast Valid:
10pm CST Nov 5, 2025-6pm CST Nov 12, 2025
 
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