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

67°F

19°C

Humidity 79%
Wind Speed Calm
Barometer 30.07 in (1017.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 27 Aug 10:56 pm CDT
Extended Forecast for

Prophetstown IL

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Calm wind becoming south around 5 mph after midnight.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 82 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 90.

    High: 90 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 57. Calm wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 61. Calm wind becoming south around 5 mph after midnight.
Saturday
Partly sunny, with a high near 82. South wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 69.
Sunday
Partly sunny, with a high near 90.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
Monday
Partly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 71.
Wednesday
Mostly sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prophetstown IL
 41.67°N 89.94°W (Elev. 604 ft)
Last Update:
7:26 pm CDT Aug 27, 2026
Forecast Valid:
11pm CDT Aug 27, 2026-6pm CDT Sep 3, 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