10-Day Weather Forecast - Mercersburg, PA

Mostly sunny. Highs around 80. Northeast winds around 5 mph.

Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s. Northeast winds around 5 mph.

Sunny. Highs around 80. Northeast winds around 5 mph.

Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Lows in the lower 60s.

Mostly sunny. Very warm with highs in the upper 80s.

Partly cloudy. Humid with lows in the upper 60s.

Mostly sunny. Humid with highs in the lower 80s.

Partly cloudy in the evening, then becoming mostly cloudy. Cooler with lows in the upper 50s.

Mostly sunny. Highs in the upper 70s.

Mostly clear. Low temperature around 57F. Dew point will be around 53F with an average humidity of 70%. Winds will be 1 mph from the N.

Sunny. High temperature around 74F. Dew point will be around 53F with an average humidity of 63%. Winds will be 1 mph from the N.

Clear. Low temperature around 57F. Dew point will be around 53F with an average humidity of 72%. Winds will be 0 mph from the NE.

Sunny. High temperature around 77F. Dew point will be around 55F with an average humidity of 64%. Winds will be 2 mph from the SE.

Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 60F. Dew point will be around 55F with an average humidity of 72%. Winds will be 2 mph from the SE.

Sunny. High temperature around 81F. Dew point will be around 58F with an average humidity of 63%. Winds will be 1 mph from the SW.

Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 62F. Dew point will be around 57F with an average humidity of 72%. Winds will be 1 mph from the W.