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.

Fog/Mist

34°F

1°C

Humidity 100%
Wind Speed W 14 mph
Barometer 29.83 in (1010.5 mb)
Dewpoint 34°F (1°C)
Visibility 2.50 mi
Wind Chill25°F (-4°C)
Last update 6 Jan 11:56 pm CST
Extended Forecast for

Shannon IL

  • Overnight

    Overnight: Patchy fog. Otherwise, cloudy, with a low around 31. West wind 5 to 10 mph.

    Low: 31 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog between 9am and noon. Areas of freezing fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 43. West wind 5 to 10 mph becoming south in the afternoon.

    High: 43 °F

    Areas
    Freezing Fog
    and Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 36. South wind around 10 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain, mainly after noon. High near 50. South wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 50 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Rain Likely
    then Chance
    Rain

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain and snow after midnight. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 35. Chance of precipitation is 50%.

    High: 35 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, cloudy, with a low around 31. West wind 5 to 10 mph.
Wednesday
Areas of fog between 9am and noon. Areas of freezing fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 43. West wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
Increasing clouds, with a low around 36. South wind around 10 mph.
Thursday
Rain, mainly after noon. High near 50. South wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 43.
Friday Night
A chance of rain and snow after midnight. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Saturday
A chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 35. Chance of precipitation is 50%.
Saturday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Mostly clear, with a low around 21.
Monday
Mostly sunny, with a high near 38.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 37.
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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:
12:01 am CST Jan 7, 2026
Forecast Valid:
12am CST Jan 7, 2026-6pm CST Jan 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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