PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

10:55 AM EDT APR 27, 2026
Clear
61°F
Feels Like: 60°F
Dewpoint: 34°F
Rel. Hum.: 36%
Visibility: 10 miles
Wind: ESE at 9 mph
Pressure: 30.27 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

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REST OF TODAY
Mostly sunny. Highs in the lower 60s. Light and variable winds.
TONIGHT
Clear. Lows in the upper 30s. Light and variable winds.
TUESDAY
Mostly sunny. Highs in the mid 50s. Light and variable winds, becoming east around 10 mph with gusts up to 20 mph in the afternoon.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming cloudy. Lows in the upper 30s. Light and variable winds.
WEDNESDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 50s. Light and variable winds.
WEDNESDAY NIGHT
A chance of showers in the evening, then showers likely after midnight. Lows in the lower 40s. Chance of rain 70 percent.
THURSDAY
Showers. Highs in the lower 50s. Chance of rain 90 percent.
THURSDAY NIGHT
Showers, mainly in the evening. Lows in the lower 40s. Chance of rain 90 percent.
FRIDAY
Mostly cloudy with a 40 percent chance of showers. Highs in the lower 50s.
FRIDAY NIGHT
Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the upper 30s. Chance of rain 30 percent.
SATURDAY
Partly sunny in the morning, then mostly cloudy with a chance of showers in the afternoon. Highs in the lower 50s. Chance of rain 30 percent.
SATURDAY NIGHT
Mostly cloudy with a 30 percent chance of showers. Lows in the upper 30s.
SUNDAY
Partly sunny with a 30 percent chance of showers. Highs in the lower 50s.

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  4/26/2026
Monday
27 APR 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 2 AM 42° 41° Clear 0%

0% Thunder
( 0% severe)
NNE   1 76% 35°
Low 39° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 5 AM 40° 38° Partly Cloudy NNE   1 82% 35°
High 62° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 8 AM 47° 46° Clear 0%

0% Thunder
( 0% severe)
N   1 68% 37°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 11 AM 59° 59° Partly Cloudy E   5 42% 36°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 61° 60° Partly Cloudy 0%

0% Thunder
( 0% severe)
E   8 39% 36°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 58° 57° Clear ESE   6 45% 37°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 50° 50° Clear 0%

0% Thunder
( 0% severe)
SE   2 63% 38°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 45° 44° Clear E   1 76% 38°
Tuesday
28 APR 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 42° 41° Clear 0%

0% Thunder
( 0% severe)
NE   1 86% 38°
Low 38° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 40° 38° Clear NNE   2 89% 37°
High 55° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 45° 44° Clear 1%

0% Thunder
( 0% severe)
ENE   3 73% 37°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 51° 48° Partly Cloudy E   7 54% 35°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 52° 48° Partly Cloudy 7%

0% Thunder
( 0% severe)
E   10 50% 34°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 50° 46° Partly Cloudy E   9 54% 34°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 45° 43° Mostly Cloudy 16%
RAIN
<.01 in
0% Thunder
( 1% severe)
ENE   5 65% 34°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 43° 41° Mostly Cloudy NE   3 73% 35°

PORTSMOUTH, NH extended weather forecast

Wednesday
29 APR 2026
Thursday
30 APR 2026
Friday
1 MAY 2026
Saturday
2 MAY 2026
Sunday
3 MAY 2026
Low 37° Low 43° Low 43° Low 39° Low 41°
High 51° High 55° High 58° High 60° High 56°
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
33% Rain
Overcast
96% Rain
Mostly Cloudy
58% Rain
Mostly Cloudy
31% Rain
Overcast
43% Rain
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