10-Day Weather Forecast - Portsmouth, NH

Mostly cloudy. Snow mainly in the morning. Snow accumulation of 1 to 3 inches. Highs in the upper 30s. South winds around 10 mph with gusts up to 20 mph. Chance of snow 90 percent.

Partly cloudy. A slight chance of snow showers in the evening. Lows in the mid 20s. Light and variable winds becoming west around 10 mph after midnight. Chance of snow 20 percent.

Mostly sunny. Highs in the upper 30s. West winds around 10 mph with gusts up to 20 mph.

Partly cloudy. Lows around 16. Light and variable winds.

Partly sunny. Highs in the mid 30s.

Mostly clear. Lows in the lower 20s.

Partly sunny. Highs in the mid 40s.

Partly cloudy. Lows in the mid 20s.

Partly sunny. Highs in the upper 30s.

Mostly clear. Lows around 10 above.

Partly sunny. Highs in the mid 20s.

Partly cloudy. Lows around 10 above.

Partly sunny. Highs in the lower 30s.

Clear with a chance of snow. Chance of precipitation 35%. Low temperature around 20F. Dew point will be around 13F with an average humidity of 69%. Winds will be 4 mph from the SW.

Mostly sunny with a chance of rain-snow mix. Chance of precipitation 45%. High temperature around 42F. Dew point will be around 22F with an average humidity of 61%. Winds will be 8 mph from the SW.

Mostly clear with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 29F. Dew point will be around 23F with an average humidity of 71%. Winds will be 6 mph from the W.

Cloudy. High temperature around 39F. Dew point will be around 23F with an average humidity of 61%. Winds will be 2 mph from the W.

Cloudy. Low temperature around 26F. Dew point will be around 18F with an average humidity of 67%. Winds will be 1 mph from the NW.