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.

Partly Cloudy

73°F

23°C

Humidity 100%
Wind Speed E 6 mph
Barometer 29.90 in (1011.7 mb)
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 11 Aug 4:56 am CDT
Extended Forecast for

Prophetstown IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 72. East wind around 5 mph.

    Low: 72 °F

    Chance
    T-storms and
    Patchy Fog

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 87. East wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    T-storms
    Likely and
    Patchy Fog
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 85. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers after 7pm. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

    Low: 64 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 72. East wind around 5 mph.
Tuesday
Showers and thunderstorms likely, mainly before 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 87. East wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 85. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers after 7pm. Partly cloudy, with a low around 68.
Thursday
Showers likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 65.
Friday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 79.
Friday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Saturday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 83.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers. Mostly cloudy, with a high near 82.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prophetstown IL
 41.67°N 89.94°W (Elev. 604 ft)
Last Update:
3:31 am CDT Aug 11, 2026
Forecast Valid:
5am CDT Aug 11, 2026-6pm CDT Aug 17, 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