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

47°F

8°C

Humidity 44%
Wind Speed W 20 G 26 mph
Barometer 30.05 in (1018.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 18 Apr 6:56 pm CDT
Extended Forecast for

Prophetstown IL

Flood Warning until further notice
Click here for hazard details and duration
Flood Warning until further notice
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • Tonight

    Low: 33 °F

    Clear then
    Frost

  • Sunday

    Sunday: Widespread frost before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light north after midnight.

    Low: 29 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 57 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Tonight
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 33. West wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday
Widespread frost before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 51. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light north after midnight.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 68.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 61.
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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:
6:06 pm CDT Apr 18, 2026
Forecast Valid:
7pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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