Mercersburg, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    44°
    Wednesday 4/24
    Forecast night icon
    44°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy late this evening then becoming mostly cloudy. Much cooler with lows in the upper 30s. North winds 5 to 10 mph.
  • Forecast day icon
    Thursday
    Mostly Sunny
    56°
    Forecast night icon
    Night
    Mostly Clear
    44°
    Thursday 4/25
    Day
    56°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 50s. Northeast winds around 5 mph.
    Night Details
    Mostly clear. Lows in the upper 30s. East winds around 5 mph.
  • Forecast day icon
    Friday
    Mostly Sunny
    60°
    Forecast night icon
    Night
    Mostly Cloudy
    44°
    Friday 4/26
    Day
    60°
    Mostly Sunny
    Forecast day icon
    Night
    44°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the lower 60s. Southeast winds 5 to 10 mph.
    Night Details
    Mostly cloudy. Lows in the lower 40s. Southeast winds 10 to 15 mph.
  • Forecast day icon
    Saturday
    40% Chance Rain Showers
    58°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Saturday 4/27
    Day
    58°
    40% Chance Rain Showers
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 40 percent chance of showers. Highs around 60.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    79°
    Forecast night icon
    Night
    Partly Cloudy
    58°
    Sunday 4/28
    Day
    79°
    Mostly Sunny
    Forecast day icon
    Night
    58°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Unseasonably warm with highs around 80.
    Night Details
    Partly cloudy. Unseasonably mild. Lows in the upper 50s.
  • Forecast day icon
    Monday
    Mostly Sunny
    85°
    Forecast night icon
    Night
    Partly Cloudy
    61°
    Monday 4/29
    Day
    85°
    Mostly Sunny
    Forecast day icon
    Night
    61°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Continued unseasonably hot with highs in the mid 80s.
    Night Details
    Partly cloudy. Unseasonably mild. Lows in the lower 60s.
  • Forecast day icon
    Tuesday
    60% Chance Rain Showers
    81°
    Forecast night icon
    Night
    60% Chance Rain Showers
    59°
    Tuesday 4/30
    Day
    81°
    60% Chance Rain Showers
    Forecast day icon
    Night
    59°
    60% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the morning then showers likely in the afternoon. Continued unseasonably warm with highs in the lower 80s. Chance of rain 60 percent.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Showers likely mainly in the evening. Mild. Lows in the mid 50s. Chance of rain 60 percent.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    76°
    Forecast night icon
    Night
    Clear
    56°
    Wednesday 5/1
    Day
    76°
    Mostly Sunny
    Forecast day icon
    Night
    56°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Warm with highs in the mid 70s.
    Night Details
    Clear. Low temperature around 56F. Dew point will be around 50F with an average humidity of 65%. Winds will be 4 mph from the NW.
  • Forecast day icon
    Thursday
    Sunny
    77°
    Forecast night icon
    Night
    Mostly Clear
    57°
    Thursday 5/2
    Day
    77°
    Sunny
    Forecast day icon
    Night
    57°
    Mostly Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 77F. Dew point will be around 50F with an average humidity of 52%. Winds will be 4 mph from the W.
    Night Details
    Mostly clear. Low temperature around 57F. Dew point will be around 49F with an average humidity of 64%. Winds will be 3 mph from the NW.
  • Forecast day icon
    Friday
    Partly Cloudy
    74°
    Forecast night icon
    Night
    Partly Cloudy
    56°
    Friday 5/3
    Day
    74°
    Partly Cloudy
    Forecast day icon
    Night
    56°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 74F. Dew point will be around 49F with an average humidity of 52%. Winds will be 4 mph from the NW.
    Night Details
    Partly cloudy. Low temperature around 56F. Dew point will be around 49F with an average humidity of 66%. Winds will be 3 mph from the NW.