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.

Overcast

55°F

13°C

Humidity 83%
Wind Speed E 7 mph
Barometer 30.30 in (1025.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 1 Nov 1:56 am CST
Extended Forecast for

Lyndon IL

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a steady temperature around 54. East wind around 5 mph.

    Low: 54 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers between 7am and 5pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52. Southeast wind 5 to 10 mph.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: A 50 percent chance of showers between 3pm and 5pm. Cloudy, with a high near 68. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 68 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers. Low around 61. Breezy. Chance of precipitation is 80%.

    Low: 61 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Showers. High near 72. Breezy. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers, mainly before midnight. Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a steady temperature around 54. East wind around 5 mph.
Sunday
A slight chance of showers between 7am and 5pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 52. Southeast wind 5 to 10 mph.
Monday
A 50 percent chance of showers between 3pm and 5pm. Cloudy, with a high near 68. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Monday Night
Showers. Low around 61. Breezy. Chance of precipitation is 80%.
Tuesday
Showers. High near 72. Breezy. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers, mainly before midnight. Low around 52. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
A 30 percent chance of showers after noon. Partly sunny, with a high near 63.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Mostly cloudy, with a high near 61.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lyndon IL
 41.72°N 89.91°W (Elev. 600 ft)
Last Update:
1:26 am CST Nov 1, 2026
Forecast Valid:
2am CST Nov 1, 2026-6pm CST Nov 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