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January 15th, 2026 :: 12:52 am CST   

Local Weather Report for
Rock Falls
Illinois, United States

 Current Rock Falls Weather Conditions Updated January 14th at 11:56 pm 
Temperature:16°F Dew Point:5°F
Barometer:30.09 inHg Wind:N 21 Mph
Humidity:59.1% Visibility:0M
 
 Rock Falls Weather Forecast Summary  
 
Today
Jan 15th
Friday
Jan 16th
Saturday
Jan 17th
Sunday
Jan 18th
Monday
Jan 19th
Flurries Cloudy Cloudy Cloudy Cloudy
27°F
34°F
16°F
14°F
11°F
17°F
8°F
18°F
7°F
 
 Rock Falls Detailed Weather Forecast  
 
Thursday, January 15th, 2026
Overnight Temperature: 15°F
Clear. Windy at times.
Morning Temperature: 20°F
Cloudy. Windy at times.
Afternoon Temperature: 25°F
Cloudy with a chance of flurries.
Evening Temperature: 26°F
Cloudy with flurries likely. Windy at times.
Friday, January 16th, 2026
Overnight Temperature: 27°F
Cloudy with a chance of flurries. Windy at times.
Morning Temperature: 32°F
Cloudy. Windy.
Afternoon Temperature: 29°F
Cloudy. Windy at times.
Evening Temperature: 19°F
Cloudy with a chance of flurries. Windy at times.
Saturday, January 17th, 2026
Overnight Temperature: 13°F
Cloudy. Windy at times.
Morning Temperature: 13°F
Cloudy. Windy at times.
Afternoon Temperature: 13°F
Cloudy. Windy at times.
Evening Temperature: 12°F
Cloudy with clear periods. Windy at times.
Sunday, January 18th, 2026
Overnight Temperature: 9°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 12°F
Cloudy. Windy at times.
Afternoon Temperature: 15°F
Cloudy. Windy at times.
Evening Temperature: 17°F
Cloudy. Windy at times.
Monday, January 19th, 2026
Overnight Temperature: 17°F
Cloudy. Windy at times.
Morning Temperature: 14°F
Cloudy. Windy.
Afternoon Temperature: 11°F
Sunny. Windy at times.
Evening Temperature: 8°F
Clear. Windy at times.
Tuesday, January 20th, 2026
Overnight Temperature: 6°F
Clear. Windy at times.
Morning Temperature: 12°F
Sunny. Windy at times.
Afternoon Temperature: 14°F
Cloudy.
Evening Temperature: 16°F
Cloudy.
Wednesday, January 21st, 2026
Overnight Temperature: 16°F
Cloudy with a chance of flurries.
Morning Temperature: 14°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 13°F
Sunny.
Evening Temperature: 13°F
Mostly clear. Windy at times.
Thursday, January 22nd, 2026
Overnight Temperature: 16°F
Cloudy. Windy at times.
Morning Temperature: 24°F
Cloudy. Windy at times.
Afternoon Temperature: 21°F
Cloudy.
Evening Temperature: 16°F
Clear.





 

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11:55 PM  16°F
 
 
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11:55 PM  16°F
 

 
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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