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July 21st, 2026 :: 10:06 am CDT   

Local Weather Report for
Plano
Illinois, United States

 Plano Weather Forecast Summary  
 
Today
Jul 21st
Wednesday
Jul 22nd
Thursday
Jul 23rd
Friday
Jul 24th
Saturday
Jul 25th
Thundershowers Mostly Sunny Mostly Sunny Mix of Cloud and Sun Mix of Sun and Cloud
78°F
69°F
51°F
73°F
54°F
73°F
61°F
75°F
58°F
 
 Plano Detailed Weather Forecast  
 
Tuesday, July 21st, 2026
Afternoon Temperature: 76°F
Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 68°F
Clear. Windy at times.
Wednesday, July 22nd, 2026
Overnight Temperature: 56°F
Clear. Windy at times.
Morning Temperature: 56°F
Sunny. Windy at times.
Afternoon Temperature: 69°F
Mostly sunny.
Evening Temperature: 62°F
Mostly clear.
Thursday, July 23rd, 2026
Overnight Temperature: 55°F
Clear.
Morning Temperature: 62°F
Mostly sunny.
Afternoon Temperature: 72°F
Mostly sunny.
Evening Temperature: 66°F
A mix of cloudy and clear skies.
Friday, July 24th, 2026
Overnight Temperature: 61°F
A mix of cloudy and clear skies.
Morning Temperature: 61°F
Cloudy with a slight chance of showers.
Afternoon Temperature: 71°F
Mostly sunny.
Evening Temperature: 65°F
Clear.
Saturday, July 25th, 2026
Overnight Temperature: 59°F
Clear with cloudy periods.
Morning Temperature: 64°F
A mix of cloud and sun.
Afternoon Temperature: 75°F
A mix of cloud and sun.
Evening Temperature: 73°F
A mix of clear and cloudy skies. Slight chance of a thunderstorm.
Sunday, July 26th, 2026
Overnight Temperature: 70°F
Mostly clear. Slight chance of a thunderstorm.
Morning Temperature: 76°F
Mostly sunny with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 89°F
Sunny with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 85°F
Mostly clear. Chance of a thunderstorm.
Monday, July 27th, 2026
Overnight Temperature: 80°F
A mix of cloudy and clear skies with a chance of showers or thundershowers. Windy at times.
Morning Temperature: 82°F
Sunny with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 89°F
Sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 73°F
Clear. Slight chance of a thunderstorm. Windy at times.
Tuesday, July 28th, 2026
Overnight Temperature: 68°F
Clear.
Morning Temperature: 72°F
Sunny. Windy at times.
Afternoon Temperature: 82°F
Sunny.
Evening Temperature: 75°F
Mostly clear. Chance of a thunderstorm.
Wednesday, July 29th, 2026
Overnight Temperature: 66°F
Mostly clear.
Morning Temperature: 70°F
Sunny.
Afternoon Temperature: 83°F
Sunny with cloudy periods. Chance of a thunderstorm.
Evening Temperature: 77°F
Clear. Chance of a thunderstorm.





 

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8:52 AM  77°F
 
 
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8:52 AM  77°F
 
 
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8:55 AM  75°F
 
 
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8:55 AM  81°F
Overcast
 
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8:55 AM  75°F
 
 
Naperville, IL 

 
This WeatherCity Weather Forecast for Plano, 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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