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Sunrise:  7:17 am
Sunset:  5:03 pm
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Jan 26

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Feb 3

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Feb 11

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January 21st, 2026 :: 7:54 pm CST   

Local Weather Report for
Rock Falls
Illinois, United States

 Current Rock Falls Weather Conditions Updated January 21st at 6:56 pm 
Mostly Clear
Temperature:30°F Dew Point:27°F
Barometer:29.92 inHg Wind:N 19 Mph
Humidity:86.2% Visibility:0M
 
 Rock Falls Weather Forecast Summary  
 
Today
Jan 21st
Thursday
Jan 22nd
Friday
Jan 23rd
Saturday
Jan 24th
Sunday
Jan 25th
Cloudy Cloudy Cloudy Cloudy Cloudy
28°F
23°F
-2°F
-6°F
-14°F
5°F
-10°F
15°F
5°F
 
 Rock Falls Detailed Weather Forecast  
 
Wednesday, January 21st, 2026
Evening Temperature: 20°F
Clear. Windy.
Thursday, January 22nd, 2026
Overnight Temperature: 14°F
Cloudy. Windy at times.
Morning Temperature: 19°F
Cloudy. Windy.
Afternoon Temperature: 16°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 3°F
A mix of cloudy and clear skies. Windy.
Friday, January 23rd, 2026
Overnight Temperature: -12°F
Cloudy. Windy.
Morning Temperature: -9°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: -7°F
Sunny.
Evening Temperature: -8°F
A mix of cloudy and clear skies.
Saturday, January 24th, 2026
Overnight Temperature: -10°F
Cloudy.
Morning Temperature: -2°F
Cloudy.
Afternoon Temperature: 2°F
Cloudy.
Evening Temperature: 4°F
Cloudy.
Sunday, January 25th, 2026
Overnight Temperature: 6°F
Cloudy.
Morning Temperature: 12°F
Cloudy.
Afternoon Temperature: 11°F
Cloudy. Windy at times.
Evening Temperature: 6°F
A mix of cloudy and clear skies. Windy at times.
Monday, January 26th, 2026
Overnight Temperature: 2°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 4°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 5°F
Sunny. Windy at times.
Evening Temperature: 6°F
Clear. Windy at times.
Tuesday, January 27th, 2026
Overnight Temperature: 9°F
Clear. Windy.
Morning Temperature: 23°F
Sunny. Windy.
Afternoon Temperature: 26°F
Sunny. Windy at times.
Evening Temperature: 21°F
Clear. Windy at times.
Wednesday, January 28th, 2026
Overnight Temperature: 15°F
Cloudy.
Morning Temperature: 22°F
Cloudy. Windy at times.
Afternoon Temperature: 23°F
Cloudy. Windy at times.
Evening Temperature: 21°F
Cloudy with flurries likely. Windy at times.
Thursday, January 29th, 2026
Overnight Temperature: 13°F
Cloudy with a chance of flurries. Windy.
Morning Temperature: 9°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 7°F
Sunny. Windy at times.
Evening Temperature: 3°F
Clear. Windy at times.





 

  [ Local Weather Report ]
Sterling, IL 
6:56 PM  30°F
Mostly Clear
 
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6:55 PM  32°F
moderate snow
 
Camanche, IA 
6:56 PM  30°F
light snow mist
 
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6:56 PM  30°F
light snow mist
 
Freeport, IL 
6:55 PM  28°F
Overcast

 
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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