10-Day Weather Forecast - Williamson, PA

Mostly sunny. Very warm. Humid with highs in the upper 80s. South winds 5 to 10 mph.

Partly cloudy in the evening then becoming mostly clear. Warm with lows around 70. South winds 5 to 10 mph.

Sunny. Very hot. Humid with highs in the mid 90s. West winds around 5 mph. Heat index values between 105 and 110 in the afternoon.

Mostly clear. Warm with lows in the mid 70s. West winds around 5 mph in the evening becoming light and variable. Heat index values between 100 and 104 early in the evening.

Sunny. Very hot with highs in the upper 90s. Heat index values up to 105.

Clear. Very warm with lows in the mid 70s. Heat index values up to 105 early in the evening.

Sunny. Very hot with highs in the upper 90s.

Partly cloudy. Humid warm with lows in the lower 70s. Heat index values up to 105 early in the evening.

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid. Very hot with highs in the mid 90s. Chance of rain 50 percent.

Mostly cloudy in the evening then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Humid warm with lows in the lower 70s. Chance of rain 50 percent. Heat index values around 100 early in the evening.

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid hot with highs in the lower 90s. Chance of rain 40 percent.

A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Humid warm with lows around 70. Chance of rain 40 percent.

Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid hot with highs in the lower 90s. Chance of rain 50 percent.

Partly cloudy with a 60% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 70F with an average humidity of 80%. Winds will be 1 mph from the W.

Mostly sunny with a chance of rain. Chance of precipitation 40%. High temperature around 82F. Dew point will be around 70F with an average humidity of 78%. Winds will be 2 mph from the W.

Partly cloudy with a 35% chance for rain and thunderstorms. Low temperature around 70F. Dew point will be around 68F with an average humidity of 78%. Winds will be 1 mph from the W.

Sunny. High temperature around 84F. Dew point will be around 68F with an average humidity of 72%. Winds will be 2 mph from the W.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 69F. Dew point will be around 66F with an average humidity of 75%. Winds will be 1 mph from the W.