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

Prophetstown IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 9. South wind around 5 mph.

    Low: 9 °F

    Partly Cloudy

  • Sunday

    Sunday: Snow likely, mainly after 3pm. Mostly cloudy, with a high near 27. Wind chill values as low as zero. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 18. Southwest 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: Mostly sunny, with a high near 30. Northwest wind 5 to 10 mph.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29.

    High: 29 °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 29.

    High: 29 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 9. South wind around 5 mph.
Sunday
Snow likely, mainly after 3pm. Mostly cloudy, with a high near 27. Wind chill values as low as zero. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 18. Southwest 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
Mostly sunny, with a high near 30. Northwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 10.
Wednesday
Sunny, with a high near 29.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Partly sunny, with a high near 39.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Friday
Mostly cloudy, with a high near 37.
Friday Night
Partly cloudy, with a low around 12.
Saturday
Mostly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Prophetstown IL
 41.67°N 89.94°W (Elev. 604 ft)
Last Update:
2:26 am CST Feb 1, 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