Weather forecast for Portsmouth NH

Current Conditions for Portsmouth NH and the Seacoast

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

Temperature: 87.4 F
Weather: mostly cloudy
Wind: from the SE (140 degrees) at 8 MPH
Relative Humidity: 45%

Visibility: 10 mile(s)
Dew Point: 64.0 F
Pressure (in.): 29.92 in.

Forecast

Hazardous Weather Outlook

Tonight: Mostly clear this evening, then becoming partly cloudy. Lows in the upper 60s. Light and variable winds.

Tuesday: Mostly sunny. Hot with highs around 90. Light and variable winds, becoming south around 10 mph in the afternoon. Heat index values in the upper 90s.

Tuesday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows around 70. Southwest winds around 10 mph. Heat index values in the lower 90s early in the evening.

Wednesday: Partly sunny with scattered showers. Warm with highs in the upper 80s. Light and variable winds. Chance of rain 50 percent. Heat index values in the mid 90s.

Wednesday Night: Partly cloudy. Scattered showers in the evening. Humid with lows in the upper 60s. Light and variable winds. Chance of rain 40 percent. Heat index values in the lower 90s early in the evening.

Thursday: Partly sunny. Highs in the mid 80s.

Thursday Night: Partly cloudy. Lows in the mid 60s.

Friday: Partly sunny. Highs around 80.

Friday Night: Partly cloudy. Lows in the lower 60s.

Saturday: Partly sunny. Highs in the upper 70s.

Saturday Night: Partly cloudy. Lows in the lower 60s.

Sunday: Partly sunny. Highs in the upper 70s.

Sunday Night: Partly cloudy. Lows in the lower 60s.

Monday: Partly sunny with scattered showers. Highs in the upper 70s. Chance of rain 30 percent.

Marine Forecast

TONIGHT: SW winds 5 to 10 kt. Seas 2 to 3 ft.
TUE: SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft.
TUE NIGHT: SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
WED: S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Scattered showers in the afternoon.
WED NIGHT: SW winds 5 to 10 kt with gusts up to 20 kt, becoming NW after midnight. Seas 2 to 3 ft. Scattered showers.
THU: N winds around 5 kt, becoming E in the afternoon. Seas 2 to 3 ft.
THU NIGHT: S winds around 5 kt, becoming NW after midnight. Seas around 2 ft.
FRI: NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft.
FRI NIGHT: NE winds 5 to 10 kt. Seas 2 to 3 ft.
SAT: E winds 5 to 10 kt. Seas 2 to 4 ft.
SAT NIGHT: E winds 5 to 10 kt. Seas 3 to 5 ft.