10-Day Weather Forecast - Grantham, PA

Partly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds in the afternoon. Very warm. Humid with highs in the mid 80s. West winds around 5 mph. Chance of rain 50 percent.

Mostly cloudy. Showers likely, mainly in the evening. Humid with lows in the mid 60s. Northwest winds around 5 mph. Chance of rain 60 percent.

Partly sunny. Humid with highs around 80. North winds around 5 mph.

Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s. North winds around 5 mph.

Sunny. Highs in the upper 70s.

Mostly clear. Lows in the mid 50s.

Sunny. Highs in the upper 70s.

Partly cloudy. Lows in the upper 50s.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Lows around 60.

Mostly sunny. Highs in the lower 80s.

Partly cloudy in the evening, then becoming mostly cloudy. A 30 percent chance of showers. Lows in the upper 60s.

Mostly sunny. Humid. Very warm with highs in the mid 80s.

Partly cloudy with a 35% chance for rain and thunderstorms. Low temperature around 67F. Dew point will be around 66F with an average humidity of 81%. Winds will be 5 mph from the W.

Partly cloudy. High temperature around 76F. Dew point will be around 63F with an average humidity of 76%. Winds will be 5 mph from the NW.

Partly cloudy. Low temperature around 62F. Dew point will be around 61F with an average humidity of 84%. Winds will be 2 mph from the NW.

Mostly sunny. High temperature around 74F. Dew point will be around 60F with an average humidity of 75%. Winds will be 1 mph from the N.

Mostly clear. Low temperature around 62F. Dew point will be around 61F with an average humidity of 83%. Winds will be 1 mph from the S.