PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

2:55 AM EDT JUN 19, 2026
Clear
64°F
Feels Like: 64°F
Dewpoint: 59°F
Rel. Hum.: 84%
Visibility: 10 miles
Wind: SW at 7 mph
Pressure: 29.46 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

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TODAY
Mostly sunny. Highs in the lower 80s. West winds 10 to 15 mph with gusts up to 30 mph.
TONIGHT
Clear. Lows around 60. West winds around 10 mph with gusts up to 25 mph.
SATURDAY
Mostly sunny. Highs in the upper 70s. West winds 10 to 15 mph with gusts up to 25 mph.
SATURDAY NIGHT
Partly cloudy. Lows in the upper 50s. Northwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.
SUNDAY
Partly sunny with a chance of showers. Highs in the upper 70s. Light and variable winds. Chance of rain 50 percent.
SUNDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 40 percent.
MONDAY
Partly sunny with a chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 70s. Chance of rain 70 percent.
MONDAY NIGHT
Showers. Lows in the upper 50s. Chance of rain 80 percent.
TUESDAY
Showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 60 percent.
TUESDAY NIGHT
Mostly clear. Lows in the lower 60s.
WEDNESDAY
Mostly sunny. Highs in the lower 80s.
WEDNESDAY NIGHT
Mostly clear. Lows in the lower 60s.
THURSDAY
Partly sunny. Highs around 80.

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  6/18/2026
Friday
19 JUN 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 66° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   12 75% 58°
Low 62° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 63° 62° Clear WSW   13 75% 55°
High 82° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 67° 67° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   13 65% 55°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 76° 78° Partly Cloudy W   15 46% 54°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 80° 80° Partly Cloudy 0%

0% Thunder
( 2% severe)
W   16 39% 53°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 80° 80° Clear W   15 39% 53°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 74° 74° Clear 1%

0% Thunder
( 2% severe)
W   12 48% 53°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 67° 67° Clear W   10 56% 51°
Saturday
20 JUN 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 64° 63° Clear 4%

0% Thunder
( 0% severe)
W   10 63% 51°
Low 61° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 61° 59° Partly Cloudy W   12 70% 51°
High 79° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 66° 66° Clear 0%

0% Thunder
( 2% severe)
W   14 63% 53°

Increasing Clouds



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 74° 74° Partly Cloudy WNW   16 46% 52°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 77° 78° Partly Cloudy 5%

0% Thunder
( 7% severe)
WNW   17 43% 53°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 76° 78° Mostly Cloudy WNW   15 46% 54°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 71° 71° Partly Cloudy 2%

0% Thunder
( 4% severe)
WNW   9 57% 55°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 65° 65° Partly Cloudy WNW   8 70% 55°

PORTSMOUTH, NH extended weather forecast

Sunday
21 JUN 2026
Monday
22 JUN 2026
Tuesday
23 JUN 2026
Wednesday
24 JUN 2026
Thursday
25 JUN 2026
Low 57° Low 59° Low 59° Low 59° Low 59°
High 76° High 75° High 79° High 76° High 76°
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
32% Rain
Mostly Cloudy
46% Rain
Mostly Cloudy
33% Rain
Mostly Cloudy
26% Rain
Overcast
58% Rain
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