Mercersburg, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    50% Chance Rain Showers
    54°
    Friday 5/3
    Forecast night icon
    54°
    50% Chance Rain Showers
    Hourly
    Night Details
    Mostly cloudy. A chance of showers. Lows in the lower 50s. Southeast winds 5 to 10 mph. Gusts up to 25 mph this evening. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    Rain
    57°
    Forecast night icon
    Night
    Rain
    50°
    Saturday 5/4
    Day
    57°
    Rain
    Forecast day icon
    Night
    50°
    Rain
    Forecast night icon
    Hourly
    Day Details
    Rain. Much cooler with highs in the mid 50s. East winds 5 to 10 mph. Chance of rain near 100 percent.
    Night Details
    Rain. Lows around 50. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.
  • Forecast day icon
    Sunday
    Rain
    63°
    Forecast night icon
    Night
    50% Chance Rain Showers
    57°
    Sunday 5/5
    Day
    63°
    Rain
    Forecast day icon
    Night
    57°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain mainly in the morning. Highs in the lower 60s. Southeast winds 5 to 10 mph. Chance of rain near 100 percent.
    Night Details
    Cloudy with a chance of showers. Patchy fog after midnight. Lows in the upper 50s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    50% Chance of Storms
    76°
    Forecast night icon
    Night
    50% Chance of Storms
    59°
    Monday 5/6
    Day
    76°
    50% Chance of Storms
    Forecast day icon
    Night
    59°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Mostly cloudy with scattered showers. Scattered thunderstorms in the afternoon. Warmer with highs in the mid 70s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with scattered showers and thunderstorms. Lows in the upper 50s. Chance of rain 50 percent.
  • Forecast day icon
    Tuesday
    50% Chance Rain Showers
    76°
    Forecast night icon
    Night
    50% Chance Rain Showers
    63°
    Tuesday 5/7
    Day
    76°
    50% Chance Rain Showers
    Forecast day icon
    Night
    63°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with scattered showers. Highs in the upper 70s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with scattered showers. Lows in the lower 60s. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    50% Chance of Storms
    82°
    Forecast night icon
    Night
    60% Chance of Storms
    62°
    Wednesday 5/8
    Day
    82°
    50% Chance of Storms
    Forecast day icon
    Night
    62°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with scattered showers. Scattered thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
    Night Details
    Mostly cloudy with scattered thunderstorms. Scattered showers in the evening then numerous showers after midnight. Lows in the lower 60s. Chance of rain 60 percent.
  • Forecast day icon
    Thursday
    80% Chance of Storms
    75°
    Forecast night icon
    Night
    80% Chance of Storms
    62°
    Thursday 5/9
    Day
    75°
    80% Chance of Storms
    Forecast day icon
    Night
    62°
    80% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Numerous showers in the morning then widespread showers and scattered thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 80 percent.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Scattered thunderstorms. Widespread showers mainly in the evening. Lows in the upper 50s. Chance of rain 80 percent.
  • Forecast day icon
    Friday
    50% Chance Rain Showers
    74°
    Forecast night icon
    Night
    50% Chance of Rain
    57°
    Friday 5/10
    Day
    74°
    50% Chance Rain Showers
    Forecast day icon
    Night
    57°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny with scattered showers. Highs in the mid 70s. Chance of rain 50 percent.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 57F. Dew point will be around 55F with an average humidity of 79%. Winds will be 4 mph from the W.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    69°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Saturday 5/11
    Day
    69°
    30% Chance of Rain
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 69F. Dew point will be around 49F with an average humidity of 59%. Winds will be 7 mph from the W.
    Night Details
    Partly cloudy. Low temperature around 51F. Dew point will be around 46F with an average humidity of 72%. Winds will be 6 mph from the W.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    66°
    Forecast night icon
    Night
    30% Chance of Rain
    48°
    Sunday 5/12
    Day
    66°
    30% Chance of Rain
    Forecast day icon
    Night
    48°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 66F. Dew point will be around 45F with an average humidity of 58%. Winds will be 8 mph from the NW.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 48F. Dew point will be around 44F with an average humidity of 75%. Winds will be 5 mph from the NW.