10-Day Weather Forecast - Portsmouth, RI

Mostly cloudy. Showers with isolated thunderstorms, mainly in the morning. Patchy fog. Some thunderstorms may produce heavy rainfall in the morning. Humid with highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Mostly cloudy in the evening, then becoming partly cloudy. Patchy fog after midnight. Humid with lows in the mid 60s. Southwest winds 5 to 10 mph, becoming northwest after midnight.

Mostly sunny. Humid with highs in the lower 80s. Northwest winds 5 to 10 mph.

Partly cloudy. Lows in the lower 60s. Northwest winds 5 to 10 mph.

Sunny. Highs in the mid 70s.

Partly cloudy. Lows in the upper 50s.

Mostly clear. Highs in the lower 70s.

Mostly clear. Lows in the mid 50s.

Mostly clear. Highs in the lower 70s.

Partly cloudy. Lows around 60.

Partly cloudy. Highs in the mid 70s.

Partly cloudy. Lows around 60.

Partly cloudy. Highs in the mid 70s.

Clear. Low temperature around 62F. Dew point will be around 56F with an average humidity of 75%. Winds will be 3 mph from the W.

Mostly sunny. High temperature around 75F. Dew point will be around 59F with an average humidity of 69%. Winds will be 6 mph from the SW.

Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 66F. Dew point will be around 62F with an average humidity of 82%. Winds will be 5 mph from the SW.

Partly cloudy with a 30% chance for rain and thunderstorms. High temperature around 76F. Dew point will be around 64F with an average humidity of 77%. Winds will be 4 mph from the SW.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 65F. Dew point will be around 62F with an average humidity of 84%. Winds will be 3 mph from the SW.