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

56°F

13°C

Humidity 100%
Wind Speed W 6 mph
Barometer 29.94 in (1013.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 19 Jun 2:56 am CDT
Extended Forecast for

Rock Falls IL

  • Overnight

    Overnight: Mostly clear, with a low around 54. Calm wind becoming northwest around 5 mph.

    Low: 54 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 78. Northwest wind 5 to 10 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 58. West wind around 5 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 80. West wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 72. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 72 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 54. Calm wind becoming northwest around 5 mph.
Juneteenth
Sunny, with a high near 78. Northwest wind 5 to 10 mph.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 58. West wind around 5 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 80. West wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 72. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Monday
Partly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 57.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rock Falls IL
 41.77°N 89.7°W (Elev. 643 ft)
Last Update:
2:21 am CDT Jun 19, 2026
Forecast Valid:
3am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
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