PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

8:55 PM EDT OCT 31, 2026
Clear
41°F
Feels Like: 36°F
Dewpoint: 27°F
Rel. Hum.: 57%
Visibility: 10 miles
Wind: WNW at 7 mph
Pressure: 30.42 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows in the upper 20s. Light and variable winds.
SUNDAY
Sunny. Highs in the upper 50s. Light and variable winds.
SUNDAY NIGHT
Clear. Lows in the lower 40s. Light and variable winds.
MONDAY
Mostly sunny. Highs in the upper 60s. Light and variable winds.
MONDAY NIGHT
Partly cloudy. Lows in the mid 40s.
TUESDAY
Partly sunny. Highs in the mid 60s.
TUESDAY NIGHT
Partly cloudy. Lows in the upper 40s.
WEDNESDAY
Partly sunny. Highs in the mid 60s.
WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 50s.
THURSDAY
Partly sunny with a 30 percent chance of showers. Highs in the upper 60s.
THURSDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 50s. Chance of rain 40 percent.
FRIDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the mid 60s.

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  7:00 AM EST 10/31/2026
Saturday
31 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 51° 48° Clear 0%

0% Thunder
( 0% severe)
NW   8 31% 22°
High 52° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 48° 44° Partly Cloudy WNW   8 36% 23°
Clear



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 39° 34° Clear 0%

0% Thunder
( 0% severe)
WNW   7 59% 26°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 34° 30° Clear NW   5 78% 28°
Sunday
1 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 31° 28° Clear 0%

0% Thunder
( 0% severe)
WNW   3 81% 26°
Low 27° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 29° 24° Clear W   5 92% 27°
High 60° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 29° 23° Clear 0%

0% Thunder
( 0% severe)
W   6 96% 28°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 48° 44° Clear W   8 49% 30°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 56° 54° Clear 0%

0% Thunder
( 0% severe)
W   9 35% 29°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 54° 52° Clear WSW   7 45% 33°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 45° 41° Clear 0%

0% Thunder
( 0% severe)
WSW   7 68% 35°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 42° 38° Clear WSW   7 82% 37°
Monday
2 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 41° 37° Clear 0%

0% Thunder
( 0% severe)
WSW   6 79% 35°
Low 39° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 41° 36° Clear WSW   7 82% 36°
High 70° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 41° 36° Clear 0%

0% Thunder
( 0% severe)
WSW   7 82% 36°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 58° 56° Partly Cloudy WSW   8 49% 39°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 67° 67° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   9 37% 40°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 63° 63° Partly Cloudy WSW   7 48% 43°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 55° 54° Partly Cloudy     WSW   6 69% 45°

PORTSMOUTH, NH extended weather forecast

Tuesday
3 NOV 2026
Wednesday
4 NOV 2026
Thursday
5 NOV 2026
Friday
6 NOV 2026
Saturday
7 NOV 2026
Low 42° Low 47° Low 50° Low 50° Low 42°
High 65° High 69° High 65° High 58° High 56°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
8% Rain
Partly Cloudy
29% Rain
Overcast
44% Rain
Overcast
37% Rain
Overcast
36% Rain
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