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

73°F

23°C

Humidity 79%
Wind Speed Vrbl 6 mph
Barometer 29.72 in (1005.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 15 Apr 5:56 pm CDT
Extended Forecast for

3 Miles WSW Lyndon IL

Flood Watch April 17, 10:00pm until April 20, 09:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 10pm. Low around 58. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    T-storms then
    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 73. West wind around 10 mph.

    High: 73 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. West wind around 5 mph becoming southeast in the evening.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 42. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 42 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 52.

    High: 52 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms, mainly before 10pm. Low around 58. South wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 20 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 73. West wind around 10 mph.
Thursday Night
Mostly clear, with a low around 53. West wind around 5 mph becoming southeast in the evening.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Friday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 42. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Saturday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Lyndon IL
 41.7°N 89.97°W (Elev. 594 ft)
Last Update:
5:02 pm CDT Apr 15, 2026
Forecast Valid:
6pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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