PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


PORTSMOUTH, NH
Current Weather

6:55 PM EDT MAY 24, 2026
Overcast
Light Rain
Mist
52°F
Feels Like: 49°F
Dewpoint: 50°F
Rel. Hum.: 93%
Visibility: 1 1/2 miles
Wind: E at 8 mph
Pressure: 30.39 inches
Last 72 hours

Local Area Snow Depth

New Hampshire Current Weather

New Hampshire MOS Forecast Weather


Regional Weather Maps


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2025 Hurricanes

PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Showers. Patchy fog after midnight. Lows around 50. Light and variable winds. Chance of rain near 100 percent.
MEMORIAL DAY
Patchy fog in the morning. Showers. Highs around 70. Light and variable winds. Chance of rain near 100 percent.
MONDAY NIGHT
Partly cloudy. Lows in the mid 50s. Light and variable winds.
TUESDAY
Partly sunny. Highs in the upper 70s. Light and variable winds, becoming south around 10 mph in the afternoon.
TUESDAY NIGHT
Mostly clear. Lows around 60.
WEDNESDAY
Mostly sunny. Highs in the mid 80s.
WEDNESDAY NIGHT
Partly cloudy. Lows in the mid 50s.
THURSDAY
Partly sunny. Highs in the upper 60s.
THURSDAY NIGHT
Partly cloudy. Lows around 50.
FRIDAY
Partly sunny. A chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 40 percent.
FRIDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the upper 40s. Chance of rain 40 percent.
SATURDAY
Partly sunny with a 30 percent chance of showers. Highs in the mid 60s.

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  5/24/2026
Sunday
24 MAY 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 53° 50° Mostly Cloudy 90%
RAIN
.5–1 in
0% Thunder
( 1% severe)
E   8 69% 43°
High 54° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 51° 48° Mostly Cloudy E   9 83% 46°
Mostly Cloudy

Rain

PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 51° 48° Mostly Cloudy 98%
RAIN
***
0% Thunder
( 5% severe)
E   8 89% 48°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 52° 49° Mostly Cloudy E   8 96% 51°
Monday
25 MAY 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 52° 49° Mostly Cloudy 98%
RAIN
***
0% Thunder
( 9% severe)
E   8 100% 52°
Low 50° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 53° 51° Mostly Cloudy E   7 100% 53°
High 71° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 55° 55° Mostly Cloudy 99%
RAIN
***
0% Thunder
( 12% severe)
  CALM 96% 54°

Mostly Cloudy

Rain

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 58° 59° Mostly Cloudy   CALM 93% 56°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 63° 63° Mostly Cloudy 10%
RAIN
.01–.1 in
0% Thunder
( 1% severe)
W   6 81% 57°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 69° 69° Partly Cloudy W   6 73% 60°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 65° 65° Partly Cloudy 0%

0% Thunder
( 1% severe)
  CALM 81% 59°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 59° 60° Partly Cloudy WNW   2 93% 57°
Tuesday
26 MAY 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 2 AM 56° 56° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   2 93% 54°
Low 54° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 5 AM 54° 54° Partly Cloudy WNW   2 96% 53°
High 82° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 8 AM 62° 63° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 81% 56°

Decreasing Clouds



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 11 AM 75° 75° Partly Cloudy SSW   3 52% 56°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 2 PM 79° 79° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   8 42% 54°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 5 PM 78° 79° Clear SSW   9 47% 56°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 8 PM 70° 70° Clear     SSW   6 61% 56°

PORTSMOUTH, NH extended weather forecast

Wednesday
27 MAY 2026
Thursday
28 MAY 2026
Friday
29 MAY 2026
Saturday
30 MAY 2026
Sunday
31 MAY 2026
Low 58° Low 56° Low 50° Low 45° Low 49°
High 79° High 71° High 63° High 64° High 70°
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
Partly Cloudy
7% Rain
Overcast
30% Rain
Mostly Cloudy
45% Rain
Mostly Cloudy
32% Rain
Mostly Cloudy
28% Rain
WEATHER SELECT BOX EXAMPLES:
for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:
Portsmouth, NH
Portsmouth, NH snow
Portsmouth, NH radar
NH map
-or-
-or-
-or-
 
03803
03803 snow
03803 radar
 
-or-
-or-
 
 
NH
NH snow
 
 
Copyright © 2024 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions