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January 5th, 2026 :: 8:33 am CST   

Local Weather Report for
Harrisburg
Illinois, United States

 Current Harrisburg Weather Conditions Updated January 5th at 6:55 am 
Temperature:36°F Dew Point:23°F
Barometer:30.01 inHg Wind:N 9 Mph
Humidity:59.6% Visibility:0M
 
 Harrisburg Weather Forecast Summary  
 
Today
Jan 5th
Tuesday
Jan 6th
Wednesday
Jan 7th
Thursday
Jan 8th
Friday
Jan 9th
Cloudy Cloudy Cloudy Showers Showers
55°F
66°F
46°F
61°F
41°F
63°F
47°F
68°F
47°F
 
 Harrisburg Detailed Weather Forecast  
 
Monday, January 5th, 2026
Morning Temperature: 48°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 47°F
Cloudy.
Evening Temperature: 50°F
Cloudy. Windy at times.
Tuesday, January 6th, 2026
Overnight Temperature: 50°F
Cloudy. Windy at times.
Morning Temperature: 59°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 54°F
Sunny.
Evening Temperature: 48°F
Clear.
Wednesday, January 7th, 2026
Overnight Temperature: 42°F
Clear.
Morning Temperature: 54°F
Cloudy.
Afternoon Temperature: 51°F
Cloudy.
Evening Temperature: 49°F
Cloudy.
Thursday, January 8th, 2026
Overnight Temperature: 47°F
Cloudy.
Morning Temperature: 54°F
Cloudy with a chance of showers. Windy at times.
Afternoon Temperature: 58°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 63°F
Cloudy with showers likely. Windy.
Friday, January 9th, 2026
Overnight Temperature: 63°F
Cloudy with showers likely. Windy.
Morning Temperature: 67°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy.
Afternoon Temperature: 57°F
A mix of cloud and sun with a chance of showers. Windy at times.
Evening Temperature: 49°F
Clear. Windy at times.
Saturday, January 10th, 2026
Overnight Temperature: 50°F
Cloudy. Windy at times.
Morning Temperature: 44°F
Sunny. Windy.
Afternoon Temperature: 43°F
Sunny. Windy at times.
Evening Temperature: 37°F
Clear. Windy.
Sunday, January 11th, 2026
Overnight Temperature: 31°F
Clear. Windy at times.
Morning Temperature: 35°F
Sunny with cloudy periods. Windy.
Afternoon Temperature: 33°F
Sunny.
Evening Temperature: 29°F
Clear.
Monday, January 12th, 2026
Overnight Temperature: 28°F
Clear.
Morning Temperature: 39°F
Sunny. Windy at times.
Afternoon Temperature: 37°F
Sunny. Windy at times.
Evening Temperature: 37°F
Mostly clear. Windy at times.
Tuesday, January 13th, 2026
Overnight Temperature: 33°F
A mix of cloudy and clear skies.
Morning Temperature: 43°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 41°F
A mix of cloud and sun.
Evening Temperature: 38°F
Cloudy.





 

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This WeatherCity Weather Forecast for Harrisburg, 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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