10-Day Weather Forecast - South Yarmouth, MA

Mostly cloudy with a chance of showers and thunderstorms. Some thunderstorms may be severe with heavy rainfall. Humid with highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.

Mostly cloudy with a chance of showers and thunderstorms in the evening then partly cloudy after midnight. Some thunderstorms may be severe with heavy rainfall. Humid with lows in the upper 60s. Southwest winds around 5 mph becoming north after midnight. Chance of rain 40 percent.

Mostly sunny. Humid with highs in the upper 70s. Northeast winds 10 to 15 mph.

Mostly clear. Lows in the lower 60s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening.

Sunny. Highs in the upper 70s.

Mostly clear. Lows in the mid 60s. Highs in the lower 80s.

Mostly clear. Lows in the mid 60s. Highs in the lower 80s.

Partly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Partly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Partly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Partly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Partly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Partly cloudy. Lows in the mid 60s. Highs in the mid 70s.

Clear. Low temperature around 63F. Dew point will be around 61F with an average humidity of 87%. Winds will be 9 mph from the NE.

Partly cloudy. High temperature around 73F. Dew point will be around 61F with an average humidity of 73%. Winds will be 13 mph from the N.

Clear. Low temperature around 63F. Dew point will be around 59F with an average humidity of 81%. Winds will be 8 mph from the N.

Sunny. High temperature around 74F. Dew point will be around 61F with an average humidity of 69%. Winds will be 4 mph from the NW.

Clear. Low temperature around 64F. Dew point will be around 61F with an average humidity of 84%. Winds will be 6 mph from the SW.