10-Day Weather Forecast - Portsmouth, NH

Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 60s. North winds around 10 mph with gusts up to 25 mph.

Mostly clear. Lows in the mid 30s. North winds around 10 mph with gusts up to 25 mph.

Sunny. Highs in the lower 50s. North winds around 10 mph with gusts up to 25 mph.

Mostly clear. Lows around 30.

Mostly sunny. Highs in the mid 50s.

Clear. Lows in the lower 30s.

Sunny. Highs in the lower 60s.

Mostly clear. Lows in the upper 30s.

Mostly sunny. Highs in the mid 60s.

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s.

Partly sunny. Highs in the mid 50s.

Partly cloudy. Low temperature around 39F. Dew point will be around 34F with an average humidity of 77%. Winds will be 8 mph from the NE.

Partly cloudy. High temperature around 51F. Dew point will be around 37F with an average humidity of 69%. Winds will be 7 mph from the ESE.

Partly cloudy. Low temperature around 38F. Dew point will be around 37F with an average humidity of 87%. Winds will be 6 mph from the SW.

Partly cloudy. High temperature around 55F. Dew point will be around 49F with an average humidity of 87%. Winds will be 6 mph from the ESE.

Mostly cloudy. Low temperature around 50F. Dew point will be around 50F with an average humidity of 97%. Winds will be 6 mph from the SSW.

Cloudy. High temperature around 65F. Dew point will be around 55F with an average humidity of 82%. Winds will be 9 mph from the SW.

Partly cloudy. Low temperature around 43F. Dew point will be around 41F with an average humidity of 90%. Winds will be 8 mph from the WNW.