Grantham, Pennsylvania | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    50% Chance Rain Showers
    54°
    Sunday 5/5
    Forecast night icon
    54°
    50% Chance Rain Showers
    Hourly
    Night Details
    Cloudy. A chance of showers mainly this evening. Patchy fog. Not as cool with lows in the lower 60s. Southeast winds around 5 mph. Chance of rain 50 percent.
  • Forecast day icon
    Monday
    30% Chance of Storms
    71°
    Forecast night icon
    Night
    30% Chance Rain Showers
    62°
    Monday 5/6
    Day
    71°
    30% Chance of Storms
    Forecast day icon
    Night
    62°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. Patchy fog in the morning. A slight chance of showers in the morning then a chance of showers with a slight chance of thunderstorms in the afternoon. Warmer with highs in the mid 70s. West winds around 5 mph becoming northwest around 5 mph in the afternoon. Chance of rain 30 percent.
    Night Details
    Mostly cloudy. A chance of showers after midnight. Patchy fog after midnight. Lows in the upper 50s. North winds around 5 mph. Chance of rain 30 percent.
  • Forecast day icon
    Tuesday
    50% Chance of Storms
    73°
    Forecast night icon
    Night
    70% Chance of Storms
    63°
    Tuesday 5/7
    Day
    73°
    50% Chance of Storms
    Forecast day icon
    Night
    63°
    70% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Northeast winds around 5 mph becoming south in the afternoon. Chance of rain 50 percent.
    Night Details
    Showers likely with a chance of thunderstorms. Lows in the lower 60s. Southwest winds 5 to 10 mph. Chance of rain 70 percent.
  • Forecast day icon
    Wednesday
    40% Chance Rain Showers
    79°
    Forecast night icon
    Night
    50% Chance Rain Showers
    62°
    Wednesday 5/8
    Day
    79°
    40% Chance Rain Showers
    Forecast day icon
    Night
    62°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny in the morning then clearing. A chance of showers in the morning. Highs in the lower 80s. Chance of rain 40 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A chance of showers after midnight. Lows in the upper 50s. Chance of rain 50 percent.
  • Forecast day icon
    Thursday
    Thunderstorms
    74°
    Forecast night icon
    Night
    Thunderstorms
    58°
    Thursday 5/9
    Day
    74°
    Thunderstorms
    Forecast day icon
    Night
    58°
    Thunderstorms
    Forecast night icon
    Hourly
    Day Details
    Showers. A chance of thunderstorms in the afternoon. Not as warm with highs in the lower 70s. Chance of rain 90 percent.
    Night Details
    Mostly cloudy with a chance of thunderstorms. Showers mainly in the evening. Lows in the mid 50s. Chance of rain 90 percent.
  • Forecast day icon
    Friday
    50% Chance Rain Showers
    69°
    Forecast night icon
    Night
    50% Chance Rain Showers
    54°
    Friday 5/10
    Day
    69°
    50% Chance Rain Showers
    Forecast day icon
    Night
    54°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers. Highs in the upper 60s. Chance of rain 50 percent.
    Night Details
    Partly cloudy with a chance of showers. Lows in the upper 40s. Chance of rain 50 percent.
  • Forecast day icon
    Saturday
    50% Chance Rain Showers
    61°
    Forecast night icon
    Night
    50% Chance Rain Showers
    49°
    Saturday 5/11
    Day
    61°
    50% Chance Rain Showers
    Forecast day icon
    Night
    49°
    50% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. Highs in the mid 60s. Chance of rain 50 percent.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A chance of showers. Lows in the upper 40s. Chance of rain 50 percent.
  • Forecast day icon
    Sunday
    50% Chance Rain Showers
    62°
    Forecast night icon
    Night
    30% Chance of Rain
    49°
    Sunday 5/12
    Day
    62°
    50% Chance Rain Showers
    Forecast day icon
    Night
    49°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny with a chance of showers. Highs in the mid 60s. Chance of rain 50 percent.
    Night Details
    Partly cloudy with a 30% chance for rain and thunderstorms. Low temperature around 49F. Dew point will be around 47F with an average humidity of 79%. Winds will be 2 mph from the NW.
  • Forecast day icon
    Monday
    30% Chance of Rain
    65°
    Forecast night icon
    Night
    Clear
    53°
    Monday 5/13
    Day
    65°
    30% Chance of Rain
    Forecast day icon
    Night
    53°
    Clear
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 65F. Dew point will be around 48F with an average humidity of 66%. Winds will be 4 mph from the NW.
    Night Details
    Clear. Low temperature around 53F. Dew point will be around 49F with an average humidity of 77%. Winds will be 3 mph from the W.
  • Forecast day icon
    Tuesday
    Sunny
    69°
    Forecast night icon
    Night
    30% Chance of Rain
    54°
    Tuesday 5/14
    Day
    69°
    Sunny
    Forecast day icon
    Night
    54°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 51F with an average humidity of 64%. Winds will be 4 mph from the NW.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 54F. Dew point will be around 51F with an average humidity of 77%. Winds will be 2 mph from the NW.