Grantham, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Cloudy
    59°
    Wednesday 5/8
    Forecast night icon
    59°
    Mostly Cloudy
    Hourly
    Night Details
    Mostly clear late this evening then becoming mostly cloudy. Lows in the upper 50s. West winds 5 to 10 mph becoming northwest.
  • Forecast day icon
    Thursday
    Thunderstorms
    63°
    Forecast night icon
    Night
    70% Chance Rain Showers
    54°
    Thursday 5/9
    Day
    63°
    Thunderstorms
    Forecast day icon
    Night
    54°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers likely in the morning then showers with a slight chance of thunderstorms in the afternoon. Much cooler with highs in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 90 percent.
    Night Details
    Showers. Lows in the lower 50s. East winds 5 to 10 mph. Chance of rain 70 percent.
  • Forecast day icon
    Friday
    70% Chance Rain Showers
    53°
    Forecast night icon
    Night
    70% Chance Rain Showers
    46°
    Friday 5/10
    Day
    53°
    70% Chance Rain Showers
    Forecast day icon
    Night
    46°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Showers likely. Highs in the upper 50s. East winds 5 to 10 mph becoming northeast in the afternoon. Chance of rain 70 percent.
    Night Details
    Mostly cloudy. Showers likely mainly in the evening. Lows in the mid 40s. North winds 5 to 10 mph. Chance of rain 70 percent.
  • Forecast day icon
    Saturday
    50% Chance Rain Showers
    58°
    Forecast night icon
    Night
    50% Chance Rain Showers
    47°
    Saturday 5/11
    Day
    58°
    50% Chance Rain Showers
    Forecast day icon
    Night
    47°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 50 percent chance of showers. Highs in the mid 60s.
    Night Details
    Mostly cloudy with a chance of showers. Lows in the upper 40s. Chance of rain 50 percent.
  • Forecast day icon
    Sunday
    50% Chance Rain Showers
    59°
    Forecast night icon
    Night
    40% Chance Rain Showers
    46°
    Sunday 5/12
    Day
    59°
    50% Chance Rain Showers
    Forecast day icon
    Night
    46°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. Highs in the lower 60s. Chance of rain 50 percent.
    Night Details
    Partly cloudy with a chance of showers in the evening then mostly clear after midnight. Lows in the mid 40s. Chance of rain 40 percent.
  • Forecast day icon
    Monday
    Mostly Sunny
    68°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Monday 5/13
    Day
    68°
    Mostly Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the lower 70s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s.
  • Forecast day icon
    Tuesday
    30% Chance Rain Showers
    72°
    Forecast night icon
    Night
    40% Chance Rain Showers
    58°
    Tuesday 5/14
    Day
    72°
    30% Chance Rain Showers
    Forecast day icon
    Night
    58°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30 percent.
    Night Details
    Mostly cloudy with a 40 percent chance of showers. Lows in the mid 50s.
  • Forecast day icon
    Wednesday
    50% Chance Rain Showers
    65°
    Forecast night icon
    Night
    60% Chance of Rain
    59°
    Wednesday 5/15
    Day
    65°
    50% Chance Rain Showers
    Forecast day icon
    Night
    59°
    60% Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers. Highs in the lower 70s. Chance of rain 50 percent.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 59F. Dew point will be around 57F with an average humidity of 87%. Winds will be 6 mph from the SE.
  • Forecast day icon
    Thursday
    70% Chance of Rain
    67°
    Forecast night icon
    Night
    60% Chance of Rain
    60°
    Thursday 5/16
    Day
    67°
    70% Chance of Rain
    Forecast day icon
    Night
    60°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 65% chance for rain and thunderstorms. High temperature around 67F. Dew point will be around 58F with an average humidity of 80%. Winds will be 6 mph from the SE.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 60F. Dew point will be around 57F with an average humidity of 84%. Winds will be 3 mph from the SE.
  • Forecast day icon
    Friday
    50% Chance of Rain
    68°
    Forecast night icon
    Night
    50% Chance of Rain
    58°
    Friday 5/17
    Day
    68°
    50% Chance of Rain
    Forecast day icon
    Night
    58°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 68F. Dew point will be around 56F with an average humidity of 75%. Winds will be 2 mph from the SW.
    Night Details
    Partly cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 58F. Dew point will be around 55F with an average humidity of 82%. Winds will be 2 mph from the S.