PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

8:55 AM EDT OCT 23, 2026
Clear
46°F
Feels Like: 41°F
Dewpoint: 30°F
Rel. Hum.: 53%
Visibility: 10 miles
Wind: N at 10 mph
Pressure: 30.33 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Sunny. Highs in the mid 50s. North winds around 10 mph.
TONIGHT
Mostly clear. Lows around 30. Light and variable winds.
SATURDAY
Mostly sunny. Highs in the mid 50s. Light and variable winds.
SATURDAY NIGHT
Clear. Lows around 30. Light and variable winds.
SUNDAY
Sunny. Highs in the lower 60s. Light and variable winds.
SUNDAY NIGHT
Clear. Lows in the mid 30s.
MONDAY
Sunny. Highs in the mid 60s.
MONDAY NIGHT
Mostly clear. Lows in the upper 30s.
TUESDAY
Mostly sunny. Highs in the lower 50s.
TUESDAY NIGHT
Mostly clear. Lows in the lower 30s.
WEDNESDAY
Mostly sunny. Highs in the lower 50s.
WEDNESDAY NIGHT
Partly cloudy. Lows in the mid 30s.
THURSDAY
Partly sunny. Highs in the upper 50s.

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 10/22/2026
Friday
23 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 40° 33° Clear 0%

0% Thunder
( 0% severe)
NA   10 73% 32°
Low 34° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 37° 30° Clear N   10 75% 30°
High 55° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 35° 28° Clear 0%

0% Thunder
( 0% severe)
N   9 78% 29°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 49° 45° Clear N   10 42% 27°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 54° 51° Clear 0%

0% Thunder
( 0% severe)
NA   9 30% 24°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 53° 51° Clear NNE   6 35% 26°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 40° 38° Clear 0%

0% Thunder
( 0% severe)
NNE   3 67% 30°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 34° 31° Clear N   3 85% 30°
Saturday
24 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 31° 28° Clear 0%

0% Thunder
( 0% severe)
NNW   3 92% 29°
Low 29° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 30° 27° Partly Cloudy NW   2 96% 29°
High 58° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 30° 26° Partly Cloudy 0%

0% Thunder
( 0% severe)
NW   3 100% 30°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 49° 49° Clear   CALM 48% 30°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 57° 58° Clear 0%

0% Thunder
( 0% severe)
  CALM 31% 27°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 54° 54° Clear   CALM 43% 32°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 41° 39° Clear 0%

0% Thunder
( 0% severe)
  CALM 79% 35°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 36° 34° Clear   CALM 89% 33°

PORTSMOUTH, NH extended weather forecast

Sunday
25 OCT 2026
Monday
26 OCT 2026
Tuesday
27 OCT 2026
Wednesday
28 OCT 2026
Thursday
29 OCT 2026
Low 33° Low 35° Low 42° Low 36° Low 44°
High 63° High 65° High 54° High 52° High 61°
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
4% Rain
Partly Cloudy
6% Rain
Partly Cloudy
19% Rain
Mostly Cloudy
17% Rain
Mostly Cloudy
20% Rain
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