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 cloudy. Highs in the lower 50s. West winds 10 to 15 mph with gusts up to 30 mph.

Tonight: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s. West winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Thursday: Mostly sunny. Highs in the mid 50s. West winds around 10 mph with gusts up to 25 mph.

Thursday Night: Clear. Lows in the mid 30s. Northwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.

Friday: Partly sunny. Highs around 60. Light and variable winds, becoming south around 10 mph with gusts up to 20 mph in the afternoon.

Friday Night: Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s.

Saturday: Mostly cloudy with a 50 percent chance of showers. Highs in the lower 70s.

Saturday Night: Partly cloudy. Lows in the upper 40s.

Sunday: Partly sunny. Highs in the lower 60s.

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

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

Monday Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows around 40. Chance of rain 30 percent.

Tuesday: Partly sunny with a 30 percent chance of showers. Highs in the mid 50s.

Marine Forecast

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
THIS AFTERNOON: W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 10 seconds.
TONIGHT: W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and SE 2 ft at 10 seconds.
THU: W winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 10 seconds.
THU NIGHT: NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: NW 2 ft at 3 seconds.
FRI: W winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds.
FRI NIGHT: S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds. A chance of showers.
SAT: SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. A chance of showers.
SAT NIGHT: SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Seas 3 to 5 ft.
SUN: W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
SUN NIGHT: NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.