PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

8:55 AM EDT JUN 27, 2026
Broken Clouds
Mist
64°F
Feels Like: 65°F
Dewpoint: 63°F
Rel. Hum.: 97%
Visibility: 6 miles
Wind: E at 3 mph
Pressure: 30.06 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

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Snow Depth pages
TODAY
Areas of fog this morning. Partly sunny. Visibility one quarter mile or less at times this morning. Highs in the mid 70s. Light and variable winds.
TONIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog. Lows in the upper 50s. Light and variable winds.
SUNDAY
Partly sunny. Highs in the upper 70s. Light and variable winds.
SUNDAY NIGHT
Partly cloudy. Lows in the upper 50s. Light and variable winds.
MONDAY
Mostly sunny. Highs in the lower 80s. Light and variable winds.
MONDAY NIGHT
Partly cloudy. Lows in the lower 60s.
TUESDAY
Partly sunny. A chance of showers and thunderstorms in the afternoon. Warm with highs in the upper 80s. Chance of rain 40 percent.
TUESDAY NIGHT
A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 40 percent.
WEDNESDAY
Partly sunny. Warm with highs in the upper 80s.
WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 70s.
THURSDAY
Partly sunny. Hot with highs in the mid 90s.
THURSDAY NIGHT
Partly cloudy. Lows in the lower 70s.
FRIDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the upper 80s. Chance of rain 30 percent.

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  6/26/2026
Saturday
27 JUN 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 63° 64° Mostly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 100% 63°
Low 59° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 60° 61° Mostly Cloudy   CALM 100% 60°
High 77° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 65° 65° Mostly Cloudy 2%

0% Thunder
( 2% severe)
  CALM 90% 62°

Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 73° 73° Mostly Cloudy ESE   3 68% 62°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 74° 74° Partly Cloudy 2%

0% Thunder
( 9% severe)
ESE   7 66% 62°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 72° 72° Partly Cloudy ESE   7 73% 63°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 67° 67° Partly Cloudy 2%

0% Thunder
( 6% severe)
SE   3 81% 61°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 61° 62° Mostly Cloudy   CALM 100% 61°
Sunday
28 JUN 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 60° 61° Mostly Cloudy 1%

0% Thunder
( 1% severe)
  CALM 100% 60°
Low 59° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 59° 60° Mostly Cloudy   CALM 100% 59°
High 79° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 65° 65° Mostly Cloudy 1%

0% Thunder
( 4% severe)
  CALM 87% 61°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 75° 75° Partly Cloudy E   3 64% 62°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 77° 79° Partly Cloudy 3%

0% Thunder
( 15% severe)
SE   6 62% 63°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 76° 78° Partly Cloudy SE   6 66% 64°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 70° 70° Partly Cloudy 2%

0% Thunder
( 11% severe)
  CALM 78% 63°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 64° 66° Partly Cloudy   CALM 93% 62°

PORTSMOUTH, NH extended weather forecast

Monday
29 JUN 2026
Tuesday
30 JUN 2026
Wednesday
1 JUL 2026
Thursday
2 JUL 2026
Friday
3 JUL 2026
Low 60° Low 63° Low 68° Low 69° Low 68°
High 81° High 86° High 90° High 92° High 87°
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
19% Rain
Partly Cloudy
3% Rain
Partly Cloudy
50% Rain
Partly Cloudy
26% Rain
Partly Cloudy
31% Rain
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