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

5°F

-15°C

Humidity 87%
Wind Speed Calm
Barometer 30.39 in (1030.4 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 1 Feb 1:56 am CST
Extended Forecast for

Walnut IL

  • Overnight

    Overnight: Partly cloudy, with a low around 7. Wind chill values as low as zero. Calm wind becoming south around 5 mph.

    Low: 7 °F

    Partly Cloudy

  • Sunday

    Sunday: A 50 percent chance of snow, mainly after 11am. Increasing clouds, with a high near 25. South wind 5 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    High: 25 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely before midnight. Mostly cloudy, with a low around 18. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Snow Likely
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 31. Northwest wind 5 to 10 mph.

    High: 31 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 28.

    High: 28 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 7. Wind chill values as low as zero. Calm wind becoming south around 5 mph.
Sunday
A 50 percent chance of snow, mainly after 11am. Increasing clouds, with a high near 25. South wind 5 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely before midnight. Mostly cloudy, with a low around 18. South wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 31. Northwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Partly cloudy, with a low around 10.
Wednesday
Sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 13.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
Mostly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut IL
 41.55°N 89.6°W (Elev. 696 ft)
Last Update:
11:31 pm CST Jan 31, 2026
Forecast Valid:
2am CST Feb 1, 2026-6pm CST Feb 7, 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