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July 27th, 2025 :: 3:10 pm EDT   

Local Weather Report for
Mercersburg
Pennsylvania, United States

 Current Mercersburg Weather Conditions Updated July 27th at 1:53 pm 
Mostly Sunny
Temperature:90°F Dew Point:75°F
Barometer:30.01 inHg Wind:N 13 Mph
Humidity:62.7% Visibility:0M
 
 Mercersburg Weather Forecast Summary  
 
Today
Jul 27th
Monday
Jul 28th
Tuesday
Jul 29th
Wednesday
Jul 30th
Thursday
Jul 31st
Thundershowers Cloudy Mix of Cloud and Sun Thundershowers Cloudy
83°F
88°F
70°F
89°F
70°F
90°F
70°F
76°F
61°F
 
 Mercersburg Detailed Weather Forecast  
 
Sunday, July 27th, 2025
Afternoon Temperature: 81°F
Cloudy with showers likely. Chance of a thunderstorm.
Evening Temperature: 73°F
Clear with showers likely. Chance of a thunderstorm.
Monday, July 28th, 2025
Overnight Temperature: 73°F
Cloudy.
Morning Temperature: 85°F
Sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 84°F
Mostly sunny. Chance of a thunderstorm.
Evening Temperature: 73°F
A mix of cloudy and clear skies. Slight chance of a thunderstorm.
Tuesday, July 29th, 2025
Overnight Temperature: 73°F
A mix of cloudy and clear skies.
Morning Temperature: 86°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 82°F
A mix of cloud and sun. Chance of a thunderstorm.
Evening Temperature: 73°F
A mix of cloudy and clear skies with a chance of showers or thundershowers.
Wednesday, July 30th, 2025
Overnight Temperature: 73°F
Clear. Chance of a thunderstorm.
Morning Temperature: 87°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 86°F
Sunny with cloudy periods. Chance of a thunderstorm.
Evening Temperature: 72°F
Cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Thursday, July 31st, 2025
Overnight Temperature: 71°F
Cloudy with a slight chance of showers or thundershowers.
Morning Temperature: 76°F
Cloudy with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 72°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 63°F
A mix of cloudy and clear skies. Windy at times.
Friday, August 1st, 2025
Overnight Temperature: 59°F
Clear.
Morning Temperature: 71°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 70°F
Sunny.
Evening Temperature: 59°F
Clear. Windy at times.
Saturday, August 2nd, 2025
Overnight Temperature: 57°F
Clear.
Morning Temperature: 72°F
Mostly sunny.
Afternoon Temperature: 70°F
Cloudy.
Evening Temperature: 59°F
A mix of cloudy and clear skies.
Sunday, August 3rd, 2025
Overnight Temperature: 58°F
A mix of cloudy and clear skies.
Morning Temperature: 74°F
Cloudy.
Afternoon Temperature: 71°F
Cloudy.
Evening Temperature: 63°F
Cloudy.
Monday, August 4th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 71°F
Cloudy. Windy at times.
Afternoon Temperature: 67°F
Cloudy.
Evening Temperature: 63°F
Cloudy.





 

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This WeatherCity Weather Forecast for Mercersburg, 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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