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September 18th, 2025 :: 11:24 pm CDT   

Local Weather Report for
Rock Falls
Illinois, United States

 Current Rock Falls Weather Conditions Updated September 18th at 9:56 pm 
Temperature:68°F Dew Point:61°F
Barometer:30.04 inHg Wind:N 11 Mph
Humidity:77.8% Visibility:0M
 
 Rock Falls Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Mix of Cloud and Sun Showers Thundershowers Showers Thundershowers
87°F
74°F
59°F
81°F
60°F
70°F
63°F
78°F
63°F
 
 Rock Falls Detailed Weather Forecast  
 
Friday, September 19th, 2025
Overnight Temperature: 60°F
A mix of cloudy and clear skies.
Morning Temperature: 73°F
Cloudy.
Afternoon Temperature: 72°F
Cloudy with a slight chance of showers or thundershowers.
Evening Temperature: 64°F
Cloudy with showers likely.
Saturday, September 20th, 2025
Overnight Temperature: 60°F
Cloudy with showers likely.
Morning Temperature: 75°F
Cloudy. Chance of a thunderstorm.
Afternoon Temperature: 76°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 67°F
Cloudy. Windy at times.
Sunday, September 21st, 2025
Overnight Temperature: 64°F
Cloudy.
Morning Temperature: 67°F
Cloudy with showers likely. Windy at times.
Afternoon Temperature: 67°F
Cloudy with a few showers. Windy at times.
Evening Temperature: 65°F
Cloudy with showers likely.
Monday, September 22nd, 2025
Overnight Temperature: 65°F
Cloudy with a few showers. Windy at times.
Morning Temperature: 75°F
Cloudy. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 68°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Evening Temperature: 64°F
Cloudy with a chance of showers.
Tuesday, September 23rd, 2025
Overnight Temperature: 64°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 74°F
Cloudy. Chance of a thunderstorm.
Afternoon Temperature: 74°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 66°F
Cloudy with periods of rain. Slight chance of a thunderstorm.
Wednesday, September 24th, 2025
Overnight Temperature: 62°F
Cloudy with a few showers.
Morning Temperature: 66°F
Cloudy.
Afternoon Temperature: 66°F
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Evening Temperature: 58°F
Cloudy with showers likely. Windy at times.
Thursday, September 25th, 2025
Overnight Temperature: 54°F
Clear with cloudy periods.
Morning Temperature: 63°F
Cloudy. Windy at times.
Afternoon Temperature: 60°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 56°F
Cloudy with a chance of showers.
Friday, September 26th, 2025
Overnight Temperature: 56°F
A mix of cloudy and clear skies.
Morning Temperature: 66°F
Mostly sunny.
Afternoon Temperature: 66°F
Sunny with cloudy periods.
Evening Temperature: 58°F
Clear.





 

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This WeatherCity Weather Forecast for Rock Falls, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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