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

36°F

2°C

Humidity 100%
Wind Speed Calm
Barometer 30.13 in (1020.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 2 May 6:56 am CDT
Extended Forecast for

Rock Falls IL

Frost Advisory May 2, 07:27am until May 2, 08:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory May 2, 07:27am until May 2, 08:00am

    NOW until 8:00am Sat

    Frost Advisory

  • Today

    High: 58 °F

    Areas Frost
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Southwest wind 5 to 10 mph.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers, mainly between 7am and 1pm. Partly sunny, with a high near 69. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 69 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. West wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.

    Low: 48 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance
    Showers

Detailed Forecast

Today
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 58. Calm wind becoming northwest around 5 mph in the morning.
Tonight
Partly cloudy, with a low around 42. Southwest wind 5 to 10 mph.
Sunday
A 40 percent chance of showers, mainly between 7am and 1pm. Partly sunny, with a high near 69. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 44. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 77.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 59.
Tuesday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 65.
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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:
6:46 am CDT May 2, 2026
Forecast Valid:
7am CDT May 2, 2026-6pm CDT May 8, 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