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August 15th, 2026 :: 2:19 am EDT   

Local Weather Report for
Monessen
Pennsylvania, United States

 Monessen Weather Forecast Summary  
 
Today
Aug 15th
Sunday
Aug 16th
Monday
Aug 17th
Tuesday
Aug 18th
Wednesday
Aug 19th
Thundershowers Thundershowers Mostly Cloudy with Showers Mostly Sunny Mostly Sunny
78°F
79°F
68°F
78°F
61°F
78°F
56°F
77°F
59°F
 
 Monessen Detailed Weather Forecast  
 
Saturday, August 15th, 2026
Overnight Temperature: 63°F
Mostly clear.
Morning Temperature: 72°F
A mix of sun and cloud.
Afternoon Temperature: 76°F
A mix of sun and cloud with showers likely. Chance of a thunderstorm.
Evening Temperature: 70°F
A mix of cloudy and clear skies with a chance of showers. Slight chance of a thunderstorm.
Sunday, August 16th, 2026
Overnight Temperature: 68°F
Cloudy with showers.
Morning Temperature: 73°F
A mix of sun and cloud with a few showers. Chance of a thunderstorm.
Afternoon Temperature: 79°F
A mix of sun and cloud. Chance of a thunderstorm.
Evening Temperature: 73°F
A mix of cloudy and clear skies with a few showers. Chance of a thunderstorm.
Monday, August 17th, 2026
Overnight Temperature: 69°F
A mix of clear and cloudy skies with showers likely.
Morning Temperature: 70°F
A mix of cloud and sun with a chance of showers. Slight chance of a thunderstorm.
Afternoon Temperature: 77°F
Sunny with cloudy periods with a chance of showers. Slight chance of a thunderstorm.
Evening Temperature: 65°F
Clear with a slight chance of showers.
Tuesday, August 18th, 2026
Overnight Temperature: 57°F
Clear.
Morning Temperature: 66°F
Sunny.
Afternoon Temperature: 78°F
Sunny.
Evening Temperature: 64°F
Mostly clear.
Wednesday, August 19th, 2026
Overnight Temperature: 60°F
Clear.
Morning Temperature: 67°F
Sunny with cloudy periods.
Afternoon Temperature: 74°F
A mix of sun and cloud. Slight chance of a thunderstorm.
Evening Temperature: 69°F
Clear with cloudy periods with a slight chance of showers or thundershowers.
Thursday, August 20th, 2026
Overnight Temperature: 66°F
A mix of clear and cloudy skies.
Morning Temperature: 71°F
Sunny with cloudy periods.
Afternoon Temperature: 76°F
A mix of cloud and sun.
Evening Temperature: 66°F
Mostly clear.
Friday, August 21st, 2026
Overnight Temperature: 63°F
Mostly clear.
Morning Temperature: 72°F
Sunny with cloudy periods.
Afternoon Temperature: 79°F
A mix of cloud and sun with showers likely. Chance of a thunderstorm.
Evening Temperature: 65°F
A mix of cloudy and clear skies with showers. Windy at times.
Saturday, August 22nd, 2026
Overnight Temperature: 62°F
Clear with a few showers.
Morning Temperature: 72°F
Mostly sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 83°F
Mostly sunny with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 68°F
Mostly clear with a chance of showers or thundershowers.





 

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This WeatherCity Weather Forecast for Monessen, Pennsylvania, 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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