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.

Fair

89°F

32°C

Humidity 34%
Wind Speed Vrbl 7 mph
Barometer 30.10 in (1018.9 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 3 Oct 4:56 pm CDT
Extended Forecast for

Shannon IL

  • Tonight

    Tonight: Clear, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 85 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 76. Chance of precipitation is 50%.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 64. South wind around 5 mph.
Saturday
Sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 61. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 62.
Monday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Monday Night
Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shannon IL
 42.15°N 89.71°W (Elev. 951 ft)
Last Update:
4:16 pm CDT Oct 3, 2025
Forecast Valid:
5pm CDT Oct 3, 2025-6pm CDT Oct 10, 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