10-Day Weather Forecast - Mercersburg, PA

Partly sunny. Patchy freezing fog in the morning. A chance of rain in the afternoon. Highs in the mid 40s. South winds 5 to 10 mph. Chance of precipitation 40 percent.

Rain mild. Lows in the lower 40s. South winds 15 to 20 mph with gusts up to 40 mph. Chance of rain near 100 percent.

Partly sunny. Highs in the upper 40s. Temperature falling into the lower 30s in the afternoon. West winds 15 to 20 mph with gusts up to 40 mph.

Partly cloudy. Much cooler with lows in the mid 20s. West winds 15 to 20 mph with gusts up to 35 mph diminishing to 5 to 10 mph with gusts up to 25 mph after midnight.

Partly sunny. Highs in the lower 40s.

Mostly cloudy. Not as cool with lows in the mid 30s.

Mostly sunny. Highs in the mid 40s. Temperature falling into the upper 30s in the afternoon.

Mostly clear. Cooler with lows in the lower 20s.

Mostly sunny. Highs in the upper 30s.

Mostly cloudy. Lows in the mid 20s.

Mostly cloudy. Highs in the mid 40s.

Mostly cloudy. Lows in the lower 30s.

Partly sunny. Highs in the mid 40s.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 37F. Dew point will be around 33F with an average humidity of 79%. Winds will be 1 mph from the SE.

Cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 51F. Dew point will be around 40F with an average humidity of 80%. Winds will be 2 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 44F. Dew point will be around 41F with an average humidity of 84%. Winds will be 1 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 56F. Dew point will be around 46F with an average humidity of 81%. Winds will be 2 mph from the SW.

Partly cloudy. Low temperature around 46F. Dew point will be around 43F with an average humidity of 80%. Winds will be 2 mph from the SW.