10-Day Weather Forecast - Mercersburg, PA

Mostly cloudy. A chance of snow showers in the afternoon. Snow accumulation around half an inch. Highs in the mid 30s. Southwest winds around 5 mph. Chance of snow 40 percent.

Mostly cloudy. A chance of snow showers in the evening. Snow accumulation up to 1 inch possible. Lows around 15. Light and variable winds becoming north around 5 mph after midnight. Chance of snow 40 percent.

Mostly sunny. Highs in the upper 20s. Northwest winds around 5 mph.

Partly cloudy. Lows around 10 above. Northwest winds around 5 mph.

Mostly sunny. Highs in the upper 20s.

Partly cloudy. Lows around 10 above.

Mostly cloudy with a 50 percent chance of snow showers. Highs in the mid 30s.

Mostly cloudy in the evening then becoming partly cloudy. Lows around 10 above. Wind chill values as low as 5 below after midnight.

Sunny. Much colder with highs around 20. Wind chill values as low as 10 below in the morning.

Partly cloudy. Cold with lows around 5 above. Wind chill values as low as 5 below.

Mostly sunny. Highs in the lower 20s. Wind chill values as low as 5 below in the morning.

Partly cloudy. Lows 5 to 10 above. Wind chill values as low as 5 below.

Mostly sunny. Highs in the mid 20s.

Clear. Low temperature around 12F. Dew point will be around 1F with an average humidity of 54%. Winds will be 9 mph from the NW.

Sunny. High temperature around 28F. Dew point will be around 6F with an average humidity of 51%. Winds will be 7 mph from the NW.

Clear. Low temperature around 18F. Dew point will be around 11F with an average humidity of 64%. Winds will be 4 mph from the NW.

Sunny. High temperature around 35F. Dew point will be around 15F with an average humidity of 57%. Winds will be 3 mph from the NW.

Partly cloudy with a slight chance of snow. Chance of precipitation 25%. Low temperature around 26F. Dew point will be around 20F with an average humidity of 71%. Winds will be 1 mph from the S.