PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

3:55 AM EDT JUL 16, 2026
Clear
68°F
Feels Like: 68°F
Dewpoint: 57°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: W at 7 mph
Pressure: 29.81 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

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REST OF TONIGHT
Mostly clear. Lows in the mid 60s. Light and variable winds.
THURSDAY
Mostly sunny. Areas of smoke. Warm with highs in the upper 80s. West winds around 10 mph with gusts up to 25 mph.
THURSDAY NIGHT
Patchy smoke in the evening. Mostly clear. Lows in the lower 60s. Northwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
FRIDAY
Mostly sunny. Highs in the lower 80s. Northwest winds around 10 mph.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Light and variable winds.
SATURDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.
SATURDAY NIGHT
A chance of thunderstorms. Showers. Lows in the mid 60s. Chance of rain 90 percent.
SUNDAY
Partly sunny. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 40 percent.
SUNDAY NIGHT
Mostly clear. Lows around 60.
MONDAY
Mostly sunny. Highs in the mid 80s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
TUESDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.
TUESDAY NIGHT
Partly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50 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  7/15/2026
Thursday
16 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 69° 69° Clear 0%

0% Thunder
( 0% severe)
W   6 66% 57°
Low 65° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 66° 66° Clear W   7 73% 57°
High 89° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 73° 73° Clear 1%

0% Thunder
( 1% severe)
W   8 62% 59°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 85° 84° Clear W   13 37% 56°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 88° 86° Partly Cloudy 9%

0% Thunder
( 16% severe)
W   16 33% 55°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 84° 83° Partly Cloudy WNW   16 37% 55°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 77° 79° Clear 3%

0% Thunder
( 6% severe)
NW   10 47% 55°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 68° 68° Clear WNW   7 59% 53°
Friday
17 JUL 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 64° 64° Clear 0%

0% Thunder
( 0% severe)
W   7 63% 51°
Low 61° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 61° 60° Clear WNW   8 65% 49°
High 84° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 67° 67° Clear 0%

0% Thunder
( 0% severe)
WNW   9 54% 50°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 77° 78° Partly Cloudy WNW   12 36% 48°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 82° 81° Clear 0%

0% Thunder
( 1% severe)
WNW   12 32% 49°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 82° 81° Partly Cloudy WNW   10 31% 48°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 74° 74° Clear 0%

0% Thunder
( 1% severe)
WNW   5 44% 51°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 66° 66° Partly Cloudy   CALM 61% 52°

PORTSMOUTH, NH extended weather forecast

Saturday
18 JUL 2026
Sunday
19 JUL 2026
Monday
20 JUL 2026
Tuesday
21 JUL 2026
Wednesday
22 JUL 2026
Low 58° Low 66° Low 58° Low 62° Low 60°
High 82° High 82° High 78° High 77° High 77°
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
Mostly Cloudy
13% Rain
Mostly Cloudy
52% Rain
Partly Cloudy
9% Rain
Mostly Cloudy
62% Rain
Partly Cloudy
46% Rain
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