10-Day Weather Forecast - South Portland, ME

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Warm with highs in the mid 80s. Light and variable winds becoming southwest around 10 mph with gusts up to 25 mph in the afternoon. Chance of rain 20 percent. Heat index values in the lower 90s in the afternoon.

Partly cloudy. Humid with lows in the upper 60s. Southwest winds around 10 mph with gusts up to 20 mph in the evening becoming light and variable.

Partly sunny. Showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. Light and variable winds. Chance of rain 70 percent. Heat index values in the lower 90s in the afternoon.

Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 50 percent.

Mostly sunny. Highs in the lower 80s.

Mostly clear. Lows in the lower 60s.

Sunny. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Mostly sunny. Warm with highs in the mid 80s.

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

Mostly sunny. Hot with highs around 90.

Mostly clear with a 25% chance for rain and thunderstorms. Low temperature around 70F. Dew point will be around 64F with an average humidity of 67%. Winds will be 10 mph from the SW.

Partly cloudy with a 25% chance for rain and thunderstorms. High temperature around 83F. Dew point will be around 65F with an average humidity of 64%. Winds will be 6 mph from the W.

Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 65F. Dew point will be around 61F with an average humidity of 70%. Winds will be 5 mph from the W.

Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 79F. Dew point will be around 62F with an average humidity of 65%. Winds will be 3 mph from the S.

Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 65F. Dew point will be around 61F with an average humidity of 77%. Winds will be 4 mph from the SW.

Mostly sunny. High temperature around 78F. Dew point will be around 61F with an average humidity of 66%. Winds will be 3 mph from the NW.

Partly cloudy. Low temperature around 64F. Dew point will be around 58F with an average humidity of 72%. Winds will be 4 mph from the SW.