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.

Fair

51°F

11°C

Humidity 77%
Wind Speed E 7 mph
Barometer 30.19 in (1022.8 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 11 Apr 6:56 pm CDT
Extended Forecast for

Walnut IL

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Mostly cloudy, with a temperature rising to around 58 by 5am. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 53 °F⇑

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 76. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.

    High: 76 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers and
    Breezy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, with a high near 78. Southwest wind around 15 mph, with gusts as high as 20 mph.

    High: 78 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers before 8pm. Mostly cloudy, with a temperature rising to around 58 by 5am. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 76. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm. Low around 61. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, with a high near 78. Southwest wind around 15 mph, with gusts as high as 20 mph.
Monday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 57.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 80.
Friday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut IL
 41.55°N 89.6°W (Elev. 696 ft)
Last Update:
7:06 pm CDT Apr 11, 2026
Forecast Valid:
7pm CDT Apr 11, 2026-6pm CDT Apr 18, 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