PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

11:55 PM EDT JUL 11, 2026
Scattered Clouds
66°F
Feels Like: 66°F
Dewpoint: 59°F
Rel. Hum.: 78%
Visibility: 10 miles
Wind: Calm
Pressure: 30.07 inches
Last 72 hours

Local Area Snow Depth

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(Automated weather data from NWS/FAA)
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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows in the upper 50s. South winds around 10 mph this evening, becoming light and variable.
SUNDAY
Mostly sunny. Highs around 80. Light and variable winds, becoming southeast around 10 mph in the afternoon.
SUNDAY NIGHT
Mostly clear. Lows in the lower 60s. Light and variable winds.
MONDAY
Mostly sunny. Warm with highs in the upper 80s. Light and variable winds, becoming southwest around 10 mph in the afternoon.
MONDAY NIGHT
Mostly clear. Lows around 70. Southwest winds around 10 mph.
TUESDAY
Mostly sunny. Hot with highs in the mid 90s.
TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s.
WEDNESDAY
Partly sunny. Hot with highs in the mid 90s.
WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 60s.
THURSDAY
Mostly sunny. Hot with highs around 90.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s.
FRIDAY
Mostly sunny. Warm with highs in the upper 80s.
FRIDAY NIGHT
Mostly clear. Lows 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  8:00 PM EDT  7/11/2026
Sunday
12 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 64° 65° Clear 0%

0% Thunder
( 0% severe)
N   3 78% 57°
Low 61° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 62° 62° Clear N   5 81% 56°
High 82° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 70° 70° Clear 0%

0% Thunder
( 0% severe)
NNE   5 63% 57°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 80° 80° Clear E   6 44% 56°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 80° 80° Clear 0%

0% Thunder
( 1% severe)
SE   9 45% 57°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 79° 80° Clear SSE   9 47% 57°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 72° 72° Partly Cloudy 0%

0% Thunder
( 1% severe)
SSE   6 64% 59°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 66° 66° Clear S   5 75% 58°
Monday
13 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 65° 65° Clear 1%

0% Thunder
( 0% severe)
SSW   5 78% 58°
Low 63° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 63° 64° Clear SSW   5 81% 57°
High 90° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 70° 70° Clear 0%

0% Thunder
( 1% severe)
SW   6 71% 60°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 84° 84° Clear SSW   8 46% 61°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 88° 88° Partly Cloudy 3%

0% Thunder
( 8% severe)
S   10 39% 60°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 88° 88° Partly Cloudy SSW   12 42% 62°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 81° 82° Clear 2%

0% Thunder
( 7% severe)
SSW   8 54% 63°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 76° 78° Partly Cloudy SW   10 64% 63°

PORTSMOUTH, NH extended weather forecast

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Low 61° Low 66° Low 73° Low 64° Low 65°
High 85° High 90° High 91° High 83° High 82°
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
Partly Cloudy
8% Rain
Partly Cloudy
16% Rain
Partly Cloudy
3% Rain
Partly Cloudy
3% Rain
Partly Cloudy
13% Rain
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