Portsmouth Weather

Current Conditions for Portsmouth NH and the Seacoast

Longitude W70.8 – Latitude N43.1 • Rockingham County, New Hampshire, USA

 

Forecast

Today: Mostly sunny. Highs in the lower 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Tonight: Clear. Lows in the lower 20s. Northwest winds around 10 mph.

Tuesday: Sunny. Highs in the upper 30s. Northwest winds around 10 mph.

Tuesday Night: Clear. Lows around 20. Northwest winds around 10 mph in the evening, becoming light and variable.

Wednesday: Mostly sunny. Highs in the mid 40s. Light and variable winds.

Wednesday Night: Mostly clear. Lows in the mid 20s.

Thursday: Mostly sunny. Highs in the lower 50s.

Thursday Night: Partly cloudy. Lows in the mid 30s.

Friday: Partly sunny. Highs in the upper 50s.

Friday Night: Partly cloudy. Lows in the lower 40s.

Saturday: Partly sunny. Highs in the upper 50s.

Saturday Night: Partly cloudy with a 30 percent chance of showers. Lows around 40.

Sunday: Mostly cloudy with a 30 percent chance of showers. Highs in the lower 50s.

Marine Forecast

TODAY: NW winds 10 to 15 kt, becoming 5 to 15 kt this afternoon. A few gusts up to 25 kt. Seas 2 to 3 ft this morning, then 1 foot or less.
TONIGHT: NW winds 10 to 15 kt with a few gusts up to 25 kt. Seas 2 to 3 ft.
TUE: N winds 10 to 15 kt with gusts up to 25 kt, becoming NW 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
TUE NIGHT: NW winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Seas 1 foot or less.
WED: N winds 5 to 10 kt with gusts up to 20 kt, becoming SE in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon.
WED NIGHT: S winds around 10 kt. Seas 2 to 4 ft.
THU: S winds 10 to 20 kt. Seas 3 to 5 ft.
THU NIGHT: S winds 10 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.
FRI: SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
FRI NIGHT: SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.