Portsmouth Weather

Current Conditions for Portsmouth NH and the Seacoast

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

 

Forecast

Rest Of Today: Mostly sunny. Highs in the lower 30s. Northwest winds around 10 mph.

Tonight: Mostly clear. Lows around 15. Northwest winds around 10 mph in the evening, becoming light and variable.

Monday: Mostly sunny. Highs in the mid 30s. Light and variable winds.

Monday Night: Mostly clear in the evening, then becoming mostly cloudy. Lows in the upper 20s. Light and variable winds, becoming southwest around 10 mph after midnight.

Tuesday: Mostly sunny. Highs around 50. West winds around 10 mph.

Tuesday Night: Mostly clear. Lows in the upper 20s.

Wednesday: Mostly sunny. Highs in the mid 50s.

Wednesday Night: Partly cloudy. Lows in the upper 30s.

Thursday: Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 50s.

Thursday Night: Mostly cloudy. Lows in the mid 40s.

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

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

Saturday: Partly sunny. Highs in the mid 40s.

Marine Forecast

REST OF TODAY: NW winds 5 to 10 kt. Seas around 2 ft late this morning, then 1 foot or less.
TONIGHT: NW winds 5 to 15 kt, becoming N 10 to 15 kt after midnight. Seas around 2 ft. Light freezing spray after midnight.
MON: NW winds 5 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas around 2 ft.
MON NIGHT: SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
TUE: W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
TUE NIGHT: NW winds 5 to 15 kt with gusts up to 20 kt, becoming 5 to 10 kt after midnight. Seas 2 to 3 ft.
WED: SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft.
WED NIGHT: S winds 15 to 20 kt, becoming SW 10 to 20 kt after midnight. Seas 2 to 4 ft.
THU: SW winds 10 to 20 kt, becoming 15 to 20 kt in the afternoon. Seas 4 to 6 ft.
THU NIGHT: SW winds 10 to 20 kt. Seas 4 to 6 ft.