PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

7:55 AM EDT OCT 22, 2026
Broken Clouds
45°F
Feels Like: 40°F
Dewpoint: 36°F
Rel. Hum.: 71%
Visibility: 10 miles
Wind: N at 9 mph
Pressure: 29.98 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Cloudy. Lows around 40. North winds around 10 mph.
THURSDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 60s. North winds around 10 mph with gusts up to 25 mph.
THURSDAY NIGHT
Mostly clear. Lows in the mid 30s. North winds around 10 mph with gusts up to 20 mph.
FRIDAY
Sunny. Highs in the mid 50s. North winds around 10 mph.
FRIDAY NIGHT
Clear. Lows around 30. Light and variable winds.
SATURDAY
Sunny. Highs in the mid 50s.
SATURDAY NIGHT
Clear. Lows around 30.
SUNDAY
Sunny. Highs in the lower 60s.
SUNDAY NIGHT
Mostly clear. Lows in the mid 30s.
MONDAY
Mostly sunny. Highs in the mid 60s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s.
TUESDAY
Partly sunny. Highs in the mid 50s.
TUESDAY NIGHT
Mostly clear. Lows in the mid 30s.

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 10/21/2026
Thursday
22 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 41° 36° Overcast 1%

0% Thunder
( 0% severe)
NA   8 86% 37°
Low 40° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 41° 35° Mostly Cloudy NA   9 82% 36°
High 63° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 41° 35° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NA   10 82% 36°

Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 53° 50° Mostly Cloudy N   10 50% 35°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 61° 59° Partly Cloudy 1%

0% Thunder
( 0% severe)
NA   12 38% 35°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 59° 58° Partly Cloudy N   8 49% 40°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 51° 47° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   10 63% 39°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 45° 39° Clear NA   12 68% 35°
Friday
23 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 40° 33° Clear 0%

0% Thunder
( 0% severe)
N   10 67% 30°
Low 34° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 36° 29° Clear N   9 75% 29°
High 55° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 34° 27° Clear 0%

0% Thunder
( 0% severe)
N   9 82% 29°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 48° 43° Clear NA   12 43% 27°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 53° 50° Clear 0%

0% Thunder
( 0% severe)
NA   10 32% 24°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 52° 50° Clear N   6 36% 26°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 41° 39° Clear 0%

0% Thunder
( 0% severe)
N   3 62% 29°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 35° 31° Clear NA   5 82% 30°

PORTSMOUTH, NH extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
Low 39° Low 34° Low 35° Low 39° Low 42°
High 56° High 60° High 62° High 63° High 56°
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
1% Rain
Clear
3% Rain
Clear
10% Rain
Partly Cloudy
23% Rain
Overcast
26% Rain
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