PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

11:55 AM EDT JUL 11, 2026
Few Clouds
79°F
Feels Like: 79°F
Dewpoint: 50°F
Rel. Hum.: 36%
Visibility: 10 miles
Wind: SE at 8 mph
Pressure: 29.99 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 upper 70s. Light and variable winds, becoming southeast around 10 mph this afternoon.
TONIGHT
Mostly clear. Lows around 60. Southeast winds around 10 mph in the evening, becoming light and variable.
SUNDAY
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 in the evening, then becoming partly cloudy. Lows around 70.
TUESDAY
Mostly sunny. Hot with highs in the mid 90s.
TUESDAY NIGHT
Partly cloudy. Lows in the upper 70s.
WEDNESDAY
Mostly sunny. Hot with highs in the lower 90s.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s.
THURSDAY
Partly sunny. Warm with highs in the upper 80s.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s.
FRIDAY
Mostly sunny. Warm with highs in the upper 80s.

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 AM EDT  7/11/2026
Saturday
11 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 81° 81° Partly Cloudy 2%

0% Thunder
( 3% severe)
SE   8 42% 56°
High 82° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 79° 80° Clear SE   8 47% 57°
Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 73° 73° Clear 0%

0% Thunder
( 2% severe)
S   3 59% 58°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 67° 67° Partly Cloudy   CALM 75% 59°
Sunday
12 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 64° 65° Clear 0%

0% Thunder
( 0% severe)
NNW   3 78% 57°
Low 61° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 61° 61° Clear N   5 81% 55°
High 83° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
NNE   5 66% 57°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 79° 80° Clear E   6 45% 56°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 80° 80° Clear 0%

0% Thunder
( 1% severe)
ESE   8 44% 56°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 78° 79° Clear SSE   9 48% 57°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 73° 73° Clear 0%

0% Thunder
( 1% severe)
S   6 59% 58°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 67° 67° Partly Cloudy S   5 70% 57°
Monday
13 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 2 AM 65° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   5 75% 57°
Low 63° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 5 AM 63° 64° Partly Cloudy SW   5 81% 57°
High 91° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 8 AM 70° 70° Clear 0%

0% Thunder
( 1% severe)
SW   6 68% 59°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 11 AM 84° 84° Clear SSW   8 44% 60°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 2 PM 88° 87° Partly Cloudy 1%

0% Thunder
( 12% severe)
S   12 38% 59°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 5 PM 87° 87° Partly Cloudy SSW   12 42% 61°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 8 PM 82° 83° Partly Cloudy     SW   9 51% 62°

PORTSMOUTH, NH extended weather forecast

Tuesday
14 JUL 2026
Wednesday
15 JUL 2026
Thursday
16 JUL 2026
Friday
17 JUL 2026
Saturday
18 JUL 2026
Low 66° Low 73° Low 64° Low 65° Low 63°
High 90° High 91° High 83° High 82° High 79°
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
16% Rain
Partly Cloudy
3% Rain
Partly Cloudy
3% Rain
Partly Cloudy
13% Rain
Partly Cloudy
25% Rain
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