PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

5:55 AM EDT APR 8, 2026
Clear
27°F
Feels Like: 20°F
Dewpoint: 16°F
Rel. Hum.: 60%
Visibility: 10 miles
Wind: NW at 6 mph
Pressure: 30.54 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Highs in the lower 40s. Northwest winds around 10 mph, becoming southeast this afternoon.
TONIGHT
Clear. Lows in the upper 20s. South winds 10 to 15 mph in the evening, becoming light and variable.
THURSDAY
Mostly sunny. Highs in the lower 50s. South winds around 10 mph. Gusts up to 25 mph in the afternoon.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 30s. South winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
FRIDAY
Mostly sunny. Highs in the lower 60s. Light and variable winds.
FRIDAY NIGHT
Mostly cloudy with a 40 percent chance of showers. Lows in the lower 40s.
SATURDAY
Mostly sunny. A chance of showers in the morning. Highs in the mid 50s. Chance of rain 30 percent.
SATURDAY NIGHT
Clear. Lows in the mid 30s.
SUNDAY
Mostly sunny. Highs in the mid 50s.
SUNDAY NIGHT
Mostly cloudy. Lows in the lower 40s.
MONDAY
Mostly cloudy. Highs in the upper 60s.
MONDAY NIGHT
Mostly cloudy. Lows in the mid 50s.
TUESDAY
Mostly cloudy. Highs in the mid 70s.

Visible Weather Satellite
PORTSMOUTH, NH 03803
Infrared Weather Satellite
PORTSMOUTH, NH 03803
NEXRAD Weather Radar
PORTSMOUTH, NH 03803

PORTSMOUTH, NH 3 hourly weather forecast

weather forecast created  8:00 PM EDT  4/ 7/2026
Wednesday
8 APR 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 30° 22° Clear 0%

0% Thunder
( 0% severe)
NW   8 58% 18°
Low 27° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 28° 22° Clear NW   6 55% 15°
High 43° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 29° 26° Clear 0%

0% Thunder
( 0% severe)
N   2 50% 14°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 38° 36° Clear NNE   1 33% 13°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 41° 39° Clear 0%

0% Thunder
( 0% severe)
SE   3 29% 13°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 41° 36° Clear SSE   7 34% 16°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 36° 31° Clear 0%

0% Thunder
( 0% severe)
SSE   6 48% 19°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 33° 29° Clear SSW   5 59% 21°
Thursday
9 APR 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 31° 28° Clear 0%

0% Thunder
( 0% severe)
SSW   3 67% 22°
Low 28° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 30° 26° Clear SSW   3 70% 22°
High 49° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 33° 30° Clear 0%

0% Thunder
( 0% severe)
SSW   2 68% 24°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 45° 41° Clear SSE   8 43% 24°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 47° 41° Clear 0%

0% Thunder
( 0% severe)
SSE   13 39% 24°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 47° 41° Partly Cloudy SSE   13 45% 27°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 42° 36° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSE   9 60% 29°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 40° 35° Partly Cloudy S   7 62% 28°

PORTSMOUTH, NH extended weather forecast

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Low 27° Low 34° Low 40° Low 33° Low 41°
High 52° High 59° High 58° High 56° High 67°
PORTSMOUTH, NH 03803 weather forecast Day 3 PORTSMOUTH, NH 03803 weather forecast Day 4 PORTSMOUTH, NH 03803 weather forecast Day 5 PORTSMOUTH, NH 03803 weather forecast Day 6 PORTSMOUTH, NH 03803 weather forecast Day 7
Clear
6% Rain
Partly Cloudy
12% Rain
Mostly Cloudy
24% Rain
Partly Cloudy
3% Rain/Snow
Mostly Cloudy
22% Rain
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