PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

10:55 PM EDT JUN 15, 2026
Broken Clouds
68°F
Feels Like: 68°F
Dewpoint: 52°F
Rel. Hum.: 57%
Visibility: 10 miles
Wind: WNW at 12 mph
Pressure: 29.67 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows in the mid 50s. Northwest winds around 10 mph.
TUESDAY
Mostly sunny. Highs in the upper 70s. Light and variable winds.
TUESDAY NIGHT
Mostly clear. Lows in the mid 50s. Light and variable winds.
WEDNESDAY
Partly sunny. Highs in the upper 70s. Light and variable winds, becoming southeast around 10 mph with gusts up to 20 mph in the afternoon.
WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 50s.
THURSDAY
Partly sunny with a chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 70s. Chance of rain 70 percent.
THURSDAY NIGHT
Showers likely in the evening, then partly cloudy with a chance of showers after midnight. Lows in the lower 60s. Chance of rain 70 percent.
JUNETEENTH
Partly sunny. Highs in the lower 80s.
FRIDAY NIGHT
Partly cloudy in the evening, then clearing. Lows around 60.
SATURDAY
Mostly sunny. Highs in the lower 80s.
SATURDAY NIGHT
Mostly clear. Lows in the upper 50s.
SUNDAY
Mostly sunny. Highs in the upper 70s.

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  6/15/2026
Monday
15 JUN 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 80° 80° Partly Cloudy 0%

0% Thunder
( 1% severe)
NW   8 45% 57°
High 81° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 79° 80° Partly Cloudy NW   8 45% 56°
Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 72° 72° Clear 0%

0% Thunder
( 1% severe)
NW   7 55% 55°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 65° 65° Partly Cloudy NW   8 65% 53°
Tuesday
16 JUN 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 60° 59° Clear 0%

0% Thunder
( 0% severe)
WNW   7 72% 51°
Low 57° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 57° 56° Clear WNW   7 77% 50°
High 79° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 63° 63° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   7 65% 51°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 73° 73° Clear WNW   6 43% 49°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 77° 78° Clear 0%

0% Thunder
( 1% severe)
W   7 36% 48°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 76° 78° Clear WSW   8 40% 50°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 69° 69° Clear 0%

0% Thunder
( 1% severe)
S   6 57% 53°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 62° 63° Partly Cloudy   CALM 72% 53°
Wednesday
17 JUN 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 2 AM 59° 60° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 78% 52°
Low 56° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 5 AM 56° 56° Partly Cloudy   CALM 83% 51°
High 78° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 8 AM 65° 65° Partly Cloudy 0%

0% Thunder
( 1% severe)
  CALM 68% 54°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 11 AM 75° 75° Partly Cloudy S   6 48% 54°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 2 PM 76° 78° Partly Cloudy 6%

0% Thunder
( 4% severe)
SSE   10 48% 55°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 5 PM 73° 73° Partly Cloudy SSE   10 55% 56°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 8 PM 68° 68° Partly Cloudy     SSE   6 65% 56°

PORTSMOUTH, NH extended weather forecast

Thursday
18 JUN 2026
Friday
19 JUN 2026
Saturday
20 JUN 2026
Sunday
21 JUN 2026
Monday
22 JUN 2026
Low 60° Low 64° Low 59° Low 57° Low 57°
High 75° High 80° High 76° High 75° High 73°
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
Overcast
73% Rain
Mostly Cloudy
22% Rain
Partly Cloudy
34% Rain
Mostly Cloudy
46% Rain
Overcast
35% Rain
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