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Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

71°F

22°C

Humidity 100%
Wind Speed NE 3 mph
Barometer 30.08 in (1017.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 16 Aug 6:56 am CDT
Extended Forecast for

Shannon IL

Heat Advisory August 16, 12:00pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 90. South wind 5 to 10 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 71. East wind around 5 mph.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 86. Southeast wind around 5 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70. East wind around 5 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Clear
    then Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 90. South wind 5 to 10 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 71. East wind around 5 mph.
Sunday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Partly sunny, with a high near 86. Southeast wind around 5 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. East wind around 5 mph. Chance of precipitation is 30%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 59.
Friday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shannon IL
 42.15°N 89.74°W (Elev. 928 ft)
Last Update:
7:46 am CDT Aug 16, 2025
Forecast Valid:
7am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation