10-Day Weather Forecast - Mercersburg, PA

Showers. A chance of thunderstorms in the afternoon. Some thunderstorms may be severe with damaging winds. Not as cool with highs in the mid 60s. Temperature falling into the mid 50s in the afternoon. South winds 15 to 20 mph becoming southwest in the afternoon. Gusts up to 40 mph. Chance of rain near 100 percent.

Snow showers likely. Rain showers with a chance of thunderstorms in the evening then rain showers likely after midnight. Some thunderstorms may be severe with damaging winds. Little or no snow accumulation. Much cooler with lows in the mid 20s. West winds 10 to 15 mph with gusts up to 40 mph. Chance of precipitation near 100 percent.

Partly sunny in the morning then becoming mostly cloudy. Much colder with highs in the lower 30s. West winds 15 to 20 mph with gusts up to 40 mph.

Partly cloudy. Lows around 20.

Partly sunny in the morning then becoming mostly cloudy. Highs in the upper 30s.

Mostly cloudy. Lows in the upper 20s.

Mostly cloudy. Not as cool with highs in the upper 40s.

Mostly cloudy. Lows in the mid 30s.

Partly sunny. Highs in the mid 50s.

Mostly cloudy with a 50 percent chance of showers. Lows in the upper 30s.

Mostly cloudy in the morning then becoming partly sunny. A 50 percent chance of showers. Highs in the lower 50s.

Mostly clear. Low temperature around 35F. Dew point will be around 35F with an average humidity of 73%. Winds will be 6 mph from the NW.

Mostly sunny. High temperature around 51F. Dew point will be around 26F with an average humidity of 53%. Winds will be 5 mph from the NW.

Cloudy. Low temperature around 35F. Dew point will be around 27F with an average humidity of 62%. Winds will be 2 mph from the NW.

Cloudy. High temperature around 49F. Dew point will be around 31F with an average humidity of 66%. Winds will be 4 mph from the N.

Partly cloudy. Low temperature around 32F. Dew point will be around 27F with an average humidity of 63%. Winds will be 4 mph from the N.

Partly cloudy. High temperature around 45F. Dew point will be around 26F with an average humidity of 62%. Winds will be 3 mph from the N.

Mostly clear. Low temperature around 32F. Dew point will be around 24F with an average humidity of 61%. Winds will be 1 mph from the NW.