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September 12th, 2025 :: 12:52 pm CDT   

Local Weather Report for
Altamont
Illinois, United States

 Current Altamont Weather Conditions Updated September 12th at 11:50 am 
Temperature:29°C Dew Point:17°C
Barometer:102.2 kPa Wind:calm
Humidity:48.4% Visibility:0 Km
 
 Altamont Weather Forecast Summary  
 
Today
Sep 12th
Saturday
Sep 13th
Sunday
Sep 14th
Monday
Sep 15th
Tuesday
Sep 16th
Cloudy Cloudy Cloudy Cloudy Thundershowers
34°C
36°C
20°C
36°C
20°C
35°C
20°C
36°C
20°C
 
 Altamont Detailed Weather Forecast  
 
Friday, September 12th, 2025
Afternoon Temperature: 31°C
Cloudy.
Evening Temperature: 24°C
Mostly clear. Windy at times.
Saturday, September 13th, 2025
Overnight Temperature: 20°C
A mix of cloudy and clear skies.
Morning Temperature: 31°C
Mostly sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 34°C
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Evening Temperature: 24°C
Cloudy with a chance of showers.
Sunday, September 14th, 2025
Overnight Temperature: 20°C
Cloudy with a chance of showers.
Morning Temperature: 30°C
Cloudy with a slight chance of showers or thundershowers.
Afternoon Temperature: 34°C
Cloudy. Chance of a thunderstorm.
Evening Temperature: 22°C
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Monday, September 15th, 2025
Overnight Temperature: 20°C
Cloudy.
Morning Temperature: 29°C
Cloudy. Chance of a thunderstorm.
Afternoon Temperature: 33°C
Cloudy. Chance of a thunderstorm.
Evening Temperature: 24°C
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Tuesday, September 16th, 2025
Overnight Temperature: 22°C
Clear.
Morning Temperature: 31°C
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 34°C
A mix of sun and cloud. Chance of a thunderstorm. Windy at times.
Evening Temperature: 21°C
Cloudy with showers likely.
Wednesday, September 17th, 2025
Overnight Temperature: 20°C
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 29°C
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 34°C
Cloudy. Chance of a thunderstorm.
Evening Temperature: 22°C
Cloudy with showers likely.
Thursday, September 18th, 2025
Overnight Temperature: 21°C
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 28°C
Cloudy. Chance of a thunderstorm.
Afternoon Temperature: 31°C
Cloudy. Chance of a thunderstorm.
Evening Temperature: 20°C
Cloudy with showers likely. Windy at times.
Friday, September 19th, 2025
Overnight Temperature: 19°C
A mix of cloudy and clear skies.
Morning Temperature: 26°C
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 27°C
Cloudy with showers likely. Chance of a thunderstorm. Windy.
Evening Temperature: 18°C
Clear with a few showers.
Saturday, September 20th, 2025
Overnight Temperature: 17°C
Clear.
Morning Temperature: 24°C
Sunny.
Afternoon Temperature: 28°C
Sunny with cloudy periods.
Evening Temperature: 20°C
Clear.





 

  [ Local Weather Report ]
West Alton, MO 
11:50 AM  29°C
 
 
Portage Des Sioux, MO 
11:54 AM  30°C
 
 
Wood River, IL 
11:50 AM  29°C
 
 
Roxana, IL 
11:50 AM  29°C
 
 
Black Jack, MO 
11:51 AM  31°C
Overcast
 
Alton, IL 
11:50 AM  29°C
 
 
Florissant, MO 
11:51 AM  31°C
Overcast
 
St Charles, MO 
11:54 AM  30°C
 
 
Bellefontaine Neighbors, MO 
11:51 AM  31°C
Overcast
 
Calverton Park, MO 
11:51 AM  31°C
Overcast

This WeatherCity Weather Forecast for Altamont, 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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