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May 15th, 2026 :: 11:52 am CDT   

Local Weather Report for
Rock Falls
Illinois, United States

 Current Rock Falls Weather Conditions Updated May 15th at 10:56 am 
Temperature:70°F Dew Point:52°F
Barometer:29.89 inHg Wind:N 19 Mph
Humidity:52.8% Visibility:0M
 
 Rock Falls Weather Forecast Summary  
 
Today
May 15th
Saturday
May 16th
Sunday
May 17th
Monday
May 18th
Tuesday
May 19th
Mix of Sun and Cloud Thundershowers Thundershowers Thundershowers Mostly Cloudy with Showers
75°F
79°F
62°F
79°F
62°F
81°F
67°F
65°F
57°F
 
 Rock Falls Detailed Weather Forecast  
 
Friday, May 15th, 2026
Afternoon Temperature: 73°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 71°F
A mix of cloudy and clear skies. Chance of a thunderstorm. Windy at times.
Saturday, May 16th, 2026
Overnight Temperature: 63°F
A mix of cloudy and clear skies with a few showers. Windy at times.
Morning Temperature: 68°F
Sunny with cloudy periods with a few showers. Chance of a thunderstorm.
Afternoon Temperature: 79°F
A mix of cloud and sun with a chance of showers or thundershowers.
Evening Temperature: 70°F
Mostly cloudy with a chance of showers or thundershowers.
Sunday, May 17th, 2026
Overnight Temperature: 62°F
Clear with cloudy periods with showers likely.
Morning Temperature: 67°F
Mostly cloudy with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 78°F
A mix of cloud and sun with a slight chance of showers or thundershowers. Windy.
Evening Temperature: 74°F
Mostly clear. Chance of a thunderstorm. Windy.
Monday, May 18th, 2026
Overnight Temperature: 69°F
Clear. Slight chance of a thunderstorm. Windy.
Morning Temperature: 68°F
A mix of cloud and sun with a few showers. Slight chance of a thunderstorm. Windy.
Afternoon Temperature: 76°F
Mostly cloudy with showers. Chance of a thunderstorm. Windy.
Evening Temperature: 75°F
Clear with cloudy periods with a chance of showers or thundershowers. Windy.
Tuesday, May 19th, 2026
Overnight Temperature: 63°F
Cloudy with a few showers. Windy.
Morning Temperature: 64°F
Sunny with cloudy periods with a few showers. Windy.
Afternoon Temperature: 63°F
A mix of sun and cloud. Windy at times.
Evening Temperature: 58°F
A mix of cloudy and clear skies. Windy at times.
Wednesday, May 20th, 2026
Overnight Temperature: 47°F
Clear.
Morning Temperature: 49°F
Sunny. Windy at times.
Afternoon Temperature: 60°F
Sunny. Windy at times.
Evening Temperature: 53°F
Clear.
Thursday, May 21st, 2026
Overnight Temperature: 44°F
Mostly clear.
Morning Temperature: 49°F
Sunny with cloudy periods.
Afternoon Temperature: 58°F
Mostly cloudy.
Evening Temperature: 52°F
Clear.
Friday, May 22nd, 2026
Overnight Temperature: 44°F
Clear.
Morning Temperature: 52°F
Sunny.
Afternoon Temperature: 66°F
Sunny. Windy at times.
Evening Temperature: 61°F
Mostly clear.
Saturday, May 23rd, 2026
Overnight Temperature: 55°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 62°F
Cloudy with a slight chance of showers. Windy.
Afternoon Temperature: 63°F
Mostly cloudy with a chance of showers. Windy at times.
Evening Temperature: 65°F
Mostly cloudy. Windy at times.





 

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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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