10-Day Weather Forecast - Mercersburg, PA
- 51|25°FRain ShowersHourly details
Today
51°FWidespread rain showers with isolated thunderstorms this morning then partly sunny this afternoon. Some thunderstorms may produce gusty winds this morning. Windy with highs in the lower 50s. Temperature falling into the lower 30s this afternoon. West winds 20 to 30 mph. Gusts up to 50 mph increasing to 60 mph this afternoon. Chance of rain near 100 percent.
Tonight
25°FPartly cloudy in the evening then clearing. Blustery and much cooler with lows in the lower 20s. West winds 15 to 25 mph. Gusts up to 55 mph decreasing to 35 mph after midnight.
Weekend Weather
- 40|34°FMostly SunnyHourly details
Day
40°FMostly sunny. Cooler with highs in the lower 40s. Southwest winds 5 to 10 mph.
Night
34°FPartly cloudy in the evening then becoming mostly cloudy. Not as cool with lows in the lower 30s. Southwest winds 5 to 10 mph with gusts up to 25 mph.
- 42|23°FMostly SunnyHourly details
Day
42°FMostly sunny. Highs in the lower 40s. Temperature falling into the mid 30s in the afternoon. West winds 10 to 15 mph with gusts up to 25 mph.
Night
23°FMostly clear. Cooler with lows in the lower 20s.
- 38|30°FMostly SunnyHourly details
Day
38°FMostly sunny. Highs in the upper 30s.
Night
30°FMostly cloudy. Lows in the upper 20s.
- 42|38°F30% Chance Frozen MixHourly details
Day
42°FMostly cloudy. A chance of rain showers freezing rain and snow showers in the morning. Highs in the lower 40s. Chance of precipitation 30 percent.
Night
38°FMostly cloudy. Lows in the mid 30s.
- 46|35°FPartly SunnyHourly details
Day
46°FPartly sunny. Highs in the mid 40s.
Night
35°FMostly cloudy. A chance of rain showers after midnight. Lows in the mid 30s. Chance of rain 30 percent.
- 49|46°F40% Chance Rain Showers
Day
49°FMostly cloudy with a 40 percent chance of rain showers. Highs in the lower 50s.
Night
46°FCloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 46F. Dew point will be around 44F with an average humidity of 88%. Winds will be 4 mph from the S.
- 57|40°FCloudy
Day
57°FCloudy. High temperature around 57F. Dew point will be around 47F with an average humidity of 77%. Winds will be 6 mph from the NW.
Night
40°FMostly clear. Low temperature around 40F. Dew point will be around 40F with an average humidity of 81%. Winds will be 3 mph from the NW.
Weekend Weather
- 51|37°F30% Chance of Rain
Day
51°FPartly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 51F. Dew point will be around 39F with an average humidity of 74%. Winds will be 1 mph from the W.
Night
37°FMostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 36F. Dew point will be around 35F with an average humidity of 79%. Winds will be 1 mph from the NW.
- 43|31°F30% Chance of Rain
Day
43°FMostly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 43F. Dew point will be around 32F with an average humidity of 71%. Winds will be 3 mph from the NW.
Night
31°FCloudy. Low temperature around 31F. Dew point will be around 27F with an average humidity of 75%. Winds will be 3 mph from the NW.














