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January 15th, 2026 :: 11:26 pm CST   

Local Weather Report for
Hamilton
Illinois, United States

 Current Hamilton Weather Conditions Updated January 15th at 9:55 pm 
Overcast
Temperature:27°F Dew Point:23°F
Barometer:29.71 inHg Wind:N 13 Mph
Humidity:86.0% Visibility:0M
 
 Hamilton Weather Forecast Summary  
 
Today
Jan 15th
Friday
Jan 16th
Saturday
Jan 17th
Sunday
Jan 18th
Monday
Jan 19th
Mix of rain and snow Cloudy Cloudy Cloudy Mostly Sunny
31°F
38°F
22°F
18°F
13°F
26°F
11°F
16°F
8°F
 
 Hamilton Detailed Weather Forecast  
 
Friday, January 16th, 2026
Overnight Temperature: 30°F
Cloudy. Windy at times.
Morning Temperature: 36°F
Cloudy. Windy at times.
Afternoon Temperature: 31°F
Mostly cloudy with a chance of flurries or showers. Windy at times.
Evening Temperature: 23°F
Cloudy. Windy at times.
Saturday, January 17th, 2026
Overnight Temperature: 17°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 16°F
Cloudy. Windy.
Afternoon Temperature: 15°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 13°F
Clear. Windy at times.
Sunday, January 18th, 2026
Overnight Temperature: 11°F
Clear with cloudy periods.
Morning Temperature: 19°F
Cloudy. Windy at times.
Afternoon Temperature: 25°F
Sunny. Windy at times.
Evening Temperature: 20°F
Clear with cloudy periods. Windy.
Monday, January 19th, 2026
Overnight Temperature: 10°F
Clear. Windy.
Morning Temperature: 12°F
Sunny. Windy.
Afternoon Temperature: 14°F
Mostly sunny. Windy at times.
Evening Temperature: 13°F
Mostly clear.
Tuesday, January 20th, 2026
Overnight Temperature: 13°F
Clear. Windy at times.
Morning Temperature: 20°F
Cloudy. Windy at times.
Afternoon Temperature: 19°F
Sunny.
Evening Temperature: 18°F
Cloudy.
Wednesday, January 21st, 2026
Overnight Temperature: 20°F
Cloudy. Windy at times.
Morning Temperature: 30°F
Cloudy. Windy at times.
Afternoon Temperature: 27°F
Cloudy. Windy at times.
Evening Temperature: 24°F
Cloudy.
Thursday, January 22nd, 2026
Overnight Temperature: 20°F
Clear with cloudy periods.
Morning Temperature: 31°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 32°F
Cloudy with sunny periods. Windy at times.
Evening Temperature: 34°F
Cloudy. Windy at times.
Friday, January 23rd, 2026
Overnight Temperature: 37°F
Cloudy.
Morning Temperature: 39°F
Cloudy with a chance of showers. Showers possibly mixed with wet flurries.
Afternoon Temperature: 38°F
Cloudy with a chance of showers. Showers possibly mixed with wet flurries.
Evening Temperature: 34°F
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy at times.





 

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This WeatherCity Weather Forecast for Hamilton, 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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