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September 16th, 2026 :: 2:15 pm CDT   

Local Weather Report for
Mount Sterling
Illinois, United States

 Current Mount Sterling Weather Conditions Updated September 16th at 12:55 pm 
Overcast
Temperature:81°F Dew Point:70°F
Barometer:30.27 inHg Wind:calm
Humidity:69.7% Visibility:0M
 
 Mount Sterling Weather Forecast Summary  
 
Today
Sep 16th
Thursday
Sep 17th
Friday
Sep 18th
Saturday
Sep 19th
Sunday
Sep 20th
Thundershowers Mostly Sunny Mostly Sunny Mix of Sun and Cloud Mostly Sunny
90°F
94°F
70°F
96°F
70°F
82°F
72°F
88°F
68°F
 
 Mount Sterling Detailed Weather Forecast  
 
Wednesday, September 16th, 2026
Afternoon Temperature: 88°F
Mostly sunny. Chance of a thunderstorm.
Evening Temperature: 78°F
Mostly clear with a chance of showers or thundershowers.
Thursday, September 17th, 2026
Overnight Temperature: 73°F
Mostly clear with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 75°F
Mostly sunny with showers likely. Chance of a thunderstorm.
Afternoon Temperature: 92°F
Sunny with a chance of showers or thundershowers.
Evening Temperature: 80°F
Clear. Chance of a thunderstorm. Windy at times.
Friday, September 18th, 2026
Overnight Temperature: 72°F
Mostly clear with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 74°F
Mostly sunny with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 93°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 78°F
A mix of cloudy and clear skies with a chance of showers or thundershowers.
Saturday, September 19th, 2026
Overnight Temperature: 74°F
Clear with a slight chance of showers or thundershowers. Windy at times.
Morning Temperature: 75°F
Mostly cloudy.
Afternoon Temperature: 80°F
Mostly cloudy. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 74°F
Mostly clear with a chance of showers.
Sunday, September 20th, 2026
Overnight Temperature: 69°F
Mostly clear with a chance of showers.
Morning Temperature: 73°F
A mix of cloud and sun with a chance of showers.
Afternoon Temperature: 85°F
Mostly sunny. Chance of a thunderstorm.
Evening Temperature: 75°F
Mostly clear with a chance of showers or thundershowers.
Monday, September 21st, 2026
Overnight Temperature: 69°F
Mostly cloudy with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 68°F
A mix of cloud and sun with a chance of showers. Windy at times.
Afternoon Temperature: 70°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 64°F
Clear.
Tuesday, September 22nd, 2026
Overnight Temperature: 58°F
Clear.
Morning Temperature: 61°F
Sunny.
Afternoon Temperature: 77°F
Sunny.
Evening Temperature: 68°F
Mostly clear.
Wednesday, September 23rd, 2026
Overnight Temperature: 63°F
Clear.
Morning Temperature: 71°F
Sunny. Windy at times.
Afternoon Temperature: 69°F
Mostly cloudy with a chance of showers. Windy at times.
Evening Temperature: 62°F
Mostly clear with a slight chance of showers. Windy at times.
Thursday, September 24th, 2026
Overnight Temperature: 52°F
Mostly clear.
Morning Temperature: 57°F
Sunny. Windy at times.
Afternoon Temperature: 71°F
Sunny. Windy.
Evening Temperature: 57°F
Clear. Windy at times.





 

  [ Local Weather Report ]
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12:55 PM  84°F
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12:55 PM  84°F
Overcast
 
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12:55 PM  79°F
Overcast
 
Hannibal, MO 
12:55 PM  84°F
 
 
Roodhouse, IL 

 
This WeatherCity Weather Forecast for Mount Sterling, 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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