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

85°F

29°C

Humidity 51%
Wind Speed N 10 mph
Barometer 30.00 in (1015.1 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 5 Jul 2:56 pm CDT
Extended Forecast for

Prophetstown IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Northeast wind around 10 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 62. Northeast wind around 5 mph.

    Low: 62 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. Northeast wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Northeast wind around 10 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 62. Northeast wind around 5 mph.
Monday
Sunny, with a high near 84. Northeast wind 5 to 10 mph.
Monday Night
Clear, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 87.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 83.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 85.
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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:
3:13 pm CDT Jul 5, 2026
Forecast Valid:
3pm CDT Jul 5, 2026-6pm CDT Jul 11, 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