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January 12th, 2026 :: 1:16 am CST   

Local Weather Report for
Rock Falls
Illinois, United States

 Current Rock Falls Weather Conditions Updated January 11th at 11:56 pm 
Temperature:27°F Dew Point:21°F
Barometer:30.27 inHg Wind:N 11 Mph
Humidity:79.6% Visibility:0M
 
 Rock Falls Weather Forecast Summary  
 
Today
Jan 12th
Tuesday
Jan 13th
Wednesday
Jan 14th
Thursday
Jan 15th
Friday
Jan 16th
Cloudy Cloudy Cloudy Cloudy Cloudy
39°F
47°F
35°F
36°F
17°F
23°F
14°F
34°F
22°F
 
 Rock Falls Detailed Weather Forecast  
 
Monday, January 12th, 2026
Overnight Temperature: 27°F
Cloudy. Windy at times.
Morning Temperature: 34°F
Cloudy. Windy at times.
Afternoon Temperature: 32°F
A mix of cloud and sun.
Evening Temperature: 32°F
Cloudy. Windy at times.
Tuesday, January 13th, 2026
Overnight Temperature: 35°F
Cloudy. Windy at times.
Morning Temperature: 42°F
Cloudy. Windy.
Afternoon Temperature: 43°F
Cloudy. Windy at times.
Evening Temperature: 39°F
Cloudy with clear periods. Windy at times.
Wednesday, January 14th, 2026
Overnight Temperature: 31°F
Cloudy. Windy.
Morning Temperature: 20°F
Cloudy. Windy.
Afternoon Temperature: 19°F
Cloudy. Windy.
Evening Temperature: 17°F
Mostly clear. Windy.
Thursday, January 15th, 2026
Overnight Temperature: 15°F
Clear. Windy at times.
Morning Temperature: 20°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 20°F
Sunny with cloudy periods.
Evening Temperature: 20°F
Cloudy. Windy at times.
Friday, January 16th, 2026
Overnight Temperature: 23°F
Cloudy. Windy at times.
Morning Temperature: 29°F
Cloudy with a slight chance of flurries or showers. Windy at times.
Afternoon Temperature: 30°F
Cloudy.
Evening Temperature: 25°F
Cloudy with a chance of flurries. Windy at times.
Saturday, January 17th, 2026
Overnight Temperature: 15°F
Cloudy with a chance of flurries. Windy at times.
Morning Temperature: 9°F
Cloudy with a chance of flurries. Windy.
Afternoon Temperature: 6°F
Cloudy. Windy.
Evening Temperature: 2°F
Cloudy with clear periods. Windy at times.
Sunday, January 18th, 2026
Overnight Temperature: 1°F
Clear. Windy at times.
Morning Temperature: 10°F
Cloudy with sunny periods. Windy at times.
Afternoon Temperature: 13°F
A mix of cloud and sun.
Evening Temperature: 16°F
A mix of cloudy and clear skies. Windy at times.
Monday, January 19th, 2026
Overnight Temperature: 21°F
A mix of cloudy and clear skies. Windy.
Morning Temperature: 28°F
Cloudy with a slight chance of flurries. Wind 20 to 30 mph.
Afternoon Temperature: 24°F
Sunny. Windy.
Evening Temperature: 22°F
Clear with cloudy periods. Windy at times.
Tuesday, January 20th, 2026
Overnight Temperature: 22°F
A mix of clear and cloudy skies.
Morning Temperature: 28°F
A mix of sun and cloud. Windy.
Afternoon Temperature: 21°F
Mostly sunny.
Evening Temperature: 18°F
Cloudy.





 

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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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