Portsmouth Weather

Current Conditions for Portsmouth NH and the Seacoast

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

 

Forecast

Tonight: Patchy blowing snow this evening. Mostly clear. Lows around 2 above. Northwest winds 10 to 15 mph. Gusts up to 30 mph this evening. Wind chill values as low as 6 below after midnight.

Saturday: Mostly cloudy. Snow likely in the afternoon. Little or no snow accumulation. Highs in the mid 20s. Light and variable winds, becoming southwest around 10 mph in the afternoon. Chance of snow 70 percent.

Saturday Night: Snow. Total snow accumulation of 4 to 7 inches. Not as cold with lows in the lower 20s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 90 percent.

Sunday: Mostly cloudy in the morning, then partly sunny in the afternoon. Warmer with highs in the lower 40s. West winds 10 to 15 mph with gusts up to 30 mph.

Sunday Night: Partly cloudy. Lows around 17. Northwest winds 10 to 15 mph with gusts up to 30 mph.

Martin Luther King Jr Day: Partly sunny. Colder with highs in the mid 20s.

Monday Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 10 above.

Tuesday: Partly sunny. Highs in the lower 20s.

Tuesday Night: Mostly clear. Lows zero to 5 above zero.

Wednesday: Mostly sunny. Highs in the upper 20s.

Wednesday Night: Mostly clear in the evening, then becoming partly cloudy. Lows 10 to 15.

Thursday: Partly sunny. Highs in the upper 30s.

Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s.

Friday: Partly sunny. Highs around 40.

Marine Forecast

SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHTFREEZING SPRAY ADVISORY IN EFFECT UNTIL 6 AM EST SATURDAY
TONIGHT: NW winds 15 to 25 kt with gusts up to 35 kt, becoming N 10 to 15 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. Light freezing spray. Vsby 1 to 3 NM this evening.
SAT: N winds 5 to 10 kt, becoming SE in the afternoon. Seas 1 to 2 ft. Light freezing spray in the morning. Snow likely in the afternoon.
SAT NIGHT: S winds 10 to 20 kt, becoming 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Snow and rain in the evening, then rain with a chance of snow after midnight.
SUN: W winds 10 to 20 kt, becoming 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 3 to 5 ft.
SUN NIGHT: NW winds 15 to 25 kt with gusts up to 35 kt. Seas 2 to 4 ft.
MON: NW winds 15 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft.
MON NIGHT: NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.
TUE: NW winds 10 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.
TUE NIGHT: N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
WED: NW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
WED NIGHT: W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.