10-Day Weather Forecast - Mercersburg, PA

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  • 71|57°F
    Mostly Sunny
    Arrow up

    Today

    71°F

    Mostly sunny. Highs in the upper 60s. Southeast winds 5 to 10 mph becoming south 10 to 15 mph this afternoon.

    Tonight

    57°F

    Mostly cloudy. Mild. Lows in the mid 50s. South winds 10 to 15 mph with gusts up to 25 mph.

    Hourly details
  • Day

    74°F

    Mostly cloudy with a 50 percent chance of showers. Warm with highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

    Night

    59°F

    Partly cloudy. A chance of showers in the evening. Unseasonably mild. Lows in the upper 50s. Southwest winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 50 percent.

    Hourly details
  • Day

    84°F

    Mostly sunny. Unseasonably warm with highs in the lower 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

    Night

    64°F

    Partly cloudy. Unseasonably mild. Lows in the lower 60s.

    Hourly details
  • Day

    89°F

    Mostly sunny. Continued unseasonably hot with highs in the upper 80s.

    Night

    67°F

    Mostly cloudy. Unseasonably mild. Lows in the mid 60s.

    Hourly details
  • Day

    86°F

    Partly sunny. Continued unseasonably hot with highs in the mid 80s.

    Night

    65°F

    Mostly cloudy with a 30 percent chance of showers. Unseasonably mild. Lows in the lower 60s.

    Hourly details
  • Day

    82°F

    Mostly sunny. A chance of showers in the morning. Continued unseasonably warm with highs in the lower 80s. Chance of rain 30 percent.

    Night

    62°F

    Partly cloudy. Unseasonably mild. Lows in the upper 50s.

    Hourly details
  • Weekend Weather

  • Day

    78°F

    Mostly sunny. A chance of showers in the afternoon. Continued unseasonably warm with highs in the mid 80s. Chance of rain 30 percent.

    Night

    53°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 53F. Dew point will be around 47F with an average humidity of 57%. Winds will be 5 mph from the NW.

  • Day

    66°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 66F. Dew point will be around 41F with an average humidity of 50%. Winds will be 4 mph from the NW.

    Night

    48°F

    Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 48F. Dew point will be around 38F with an average humidity of 53%. Winds will be 2 mph from the N.

  • Day

    65°F

    Mostly sunny. High temperature around 65F. Dew point will be around 39F with an average humidity of 51%. Winds will be 2 mph from the SE.

    Night

    49°F

    Mostly clear. Low temperature around 49F. Dew point will be around 39F with an average humidity of 56%. Winds will be 2 mph from the SE.