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January 20th, 2026 :: 1:34 am CST   

Local Weather Report for
Jacksonville
Illinois, United States

 Current Jacksonville Weather Conditions Updated January 19th at 11:55 pm 
Temperature:12°F Dew Point:-0°F
Barometer:30.39 inHg Wind:N 11 Mph
Humidity:50.7% Visibility:0M
 
 Jacksonville Weather Forecast Summary  
 
Today
Jan 20th
Wednesday
Jan 21st
Thursday
Jan 22nd
Friday
Jan 23rd
Saturday
Jan 24th
Cloudy Cloudy Cloudy Cloudy Cloudy
31°F
38°F
31°F
30°F
18°F
11°F
0°F
15°F
2°F
 
 Jacksonville Detailed Weather Forecast  
 
Tuesday, January 20th, 2026
Overnight Temperature: 11°F
Clear.
Morning Temperature: 24°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 27°F
Sunny with cloudy periods.
Evening Temperature: 29°F
Cloudy. Windy.
Wednesday, January 21st, 2026
Overnight Temperature: 32°F
Cloudy. Windy.
Morning Temperature: 35°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 34°F
Sunny. Windy at times.
Evening Temperature: 34°F
Cloudy. Windy.
Thursday, January 22nd, 2026
Overnight Temperature: 27°F
Cloudy.
Morning Temperature: 29°F
Cloudy. Windy at times.
Afternoon Temperature: 25°F
Cloudy. Windy at times.
Evening Temperature: 21°F
Cloudy. Windy at times.
Friday, January 23rd, 2026
Overnight Temperature: 7°F
Cloudy. Windy.
Morning Temperature: 3°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 5°F
Cloudy.
Evening Temperature: 3°F
Cloudy.
Saturday, January 24th, 2026
Overnight Temperature: 3°F
Cloudy.
Morning Temperature: 11°F
Cloudy.
Afternoon Temperature: 14°F
Cloudy.
Evening Temperature: 12°F
A mix of cloudy and clear skies.
Sunday, January 25th, 2026
Overnight Temperature: 10°F
Clear.
Morning Temperature: 16°F
Sunny. Windy at times.
Afternoon Temperature: 14°F
Sunny.
Evening Temperature: 10°F
Clear.
Monday, January 26th, 2026
Overnight Temperature: 10°F
Clear. Windy at times.
Morning Temperature: 30°F
Sunny. Windy.
Afternoon Temperature: 36°F
Sunny. Windy at times.
Evening Temperature: 32°F
Clear with cloudy periods. Windy at times.
Tuesday, January 27th, 2026
Overnight Temperature: 26°F
Cloudy.
Morning Temperature: 34°F
Cloudy.
Afternoon Temperature: 32°F
Cloudy.
Evening Temperature: 29°F
Cloudy.
Wednesday, January 28th, 2026
Overnight Temperature: 22°F
Clear. Windy at times.
Morning Temperature: 24°F
Sunny. Windy at times.
Afternoon Temperature: 21°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 18°F
Clear. Windy at times.





 

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This WeatherCity Weather Forecast for Jacksonville, 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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