10-Day Weather Forecast - South Williamsport, PA

Patchy fog in the morning. Mostly cloudy with a slight chance of showers in the morning then partly sunny with a chance of showers and thunderstorms in the afternoon. Very warm. Humid with highs in the mid 80s. Light and variable winds becoming southwest around 5 mph in the afternoon. Chance of rain 40 percent.

Mostly cloudy in the evening then becoming partly cloudy. Patchy fog after midnight. Humid with lows in the mid 60s. West winds around 5 mph.

Mostly cloudy. Showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. West winds around 5 mph. Chance of rain 70 percent.

Mostly cloudy. Showers likely with a chance of thunderstorms in the evening. Humid with lows in the lower 60s. Northwest winds around 5 mph. Chance of rain 70 percent.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Lows in the upper 50s.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Lows around 60.

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

Mostly clear. Lows in the lower 60s.

Sunny hot with highs around 90.

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 60s.

Mostly sunny. Humid hot with highs in the lower 90s.

Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 67F. Dew point will be around 65F with an average humidity of 78%. Winds will be 4 mph from the NW.

Partly cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 84F. Dew point will be around 65F with an average humidity of 68%. Winds will be 4 mph from the NW.

Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 66F. Dew point will be around 63F with an average humidity of 78%. Winds will be 4 mph from the NW.

Mostly sunny. High temperature around 84F. Dew point will be around 64F with an average humidity of 65%. Winds will be 5 mph from the NW.

Mostly clear. Low temperature around 65F. Dew point will be around 63F with an average humidity of 77%. Winds will be 2 mph from the NW.