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

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

A Few Clouds

78°F

26°C

Humidity 62%
Wind Speed NW 5 mph
Barometer 30.07 in (1017.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Aug 10:56 am CDT
Extended Forecast for

Sterling IL

  • Today

    Today: Sunny, with a high near 82. Northwest wind around 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Northwest wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Calm wind becoming west around 5 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 61. Calm wind becoming south around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 82. Northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 58. Northwest wind around 5 mph becoming calm.
Friday
Sunny, with a high near 83. Calm wind becoming west around 5 mph.
Friday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 61. Calm wind becoming south around 5 mph.
Saturday
Partly sunny, with a high near 81.
Saturday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 72.
Monday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89.
Monday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sterling IL
 41.8°N 89.7°W (Elev. 669 ft)
Last Update:
9:31 am CDT Aug 27, 2026
Forecast Valid:
11am CDT Aug 27, 2026-6pm CDT Sep 2, 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