PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


PORTSMOUTH, NH
Current Weather

9:55 AM EDT OCT 26, 2026
Scattered Clouds
54°F
Feels Like: 52°F
Dewpoint: 32°F
Rel. Hum.: 43%
Visibility: 10 miles
Wind: W at 8 mph
Pressure: 30.15 inches
Last 72 hours

Local Area Snow Depth

New Hampshire Current Weather

New Hampshire MOS Forecast Weather


Weather Map


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2026 Hurricanes

PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny. Highs in the upper 60s. Light and variable winds.
TONIGHT
Mostly clear. Lows in the upper 30s. Light and variable winds.
TUESDAY
Sunny. Highs in the mid 50s. Light and variable winds.
TUESDAY NIGHT
Clear. Lows around 30. Light and variable winds.
WEDNESDAY
Mostly sunny. Highs in the mid 50s. Light and variable winds.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s.
THURSDAY
Mostly sunny. Highs in the mid 60s.
THURSDAY NIGHT
Mostly clear. Lows in the upper 40s.
FRIDAY
Mostly sunny. Highs around 70.
FRIDAY NIGHT
Mostly clear. Lows in the lower 40s.
SATURDAY
Mostly sunny. Highs in the lower 60s.
SATURDAY NIGHT
Partly cloudy. Lows in the lower 40s.
SUNDAY
Partly sunny. Highs in the lower 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  7:00 PM EST 10/25/2026
Monday
26 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 1 AM 39° 36° Partly Cloudy 0%

0% Thunder
( 0% severe)
WSW   5 82% 34°
Low 36° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 4 AM 37° 32° Clear WSW   6 82% 32°
High 69° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 7 AM 38° 33° Partly Cloudy 2%

0% Thunder
( 0% severe)
WSW   7 79% 32°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 10 AM 57° 56° Partly Cloudy W   7 45% 36°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 66° 66° Clear 5%

0% Thunder
( 0% severe)
W   8 36% 38°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 63° 63° Partly Cloudy WNW   7 46% 42°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 55° 53° Partly Cloudy 7%

0% Thunder
( 0% severe)
NW   7 69% 45°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 51° 48° Partly Cloudy NW   7 77% 44°
Tuesday
27 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 46° 42° Partly Cloudy 1%

0% Thunder
( 0% severe)
N   7 76% 39°
Low 37° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 41° 36° Clear N   8 73% 33°
High 55° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 37° 31° Clear 0%

0% Thunder
( 0% severe)
N   8 75% 30°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 48° 44° Clear N   8 40% 25°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 52° 52° Clear 0%

0% Thunder
( 0% severe)
NW   1 29% 21°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 50° 49° Clear W   3 32% 22°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 40° 38° Clear 0%

0% Thunder
( 0% severe)
WNW   3 62% 28°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 35° 31° Clear N   5 78% 29°

PORTSMOUTH, NH extended weather forecast

Wednesday
28 OCT 2026
Thursday
29 OCT 2026
Friday
30 OCT 2026
Saturday
31 OCT 2026
Sunday
1 NOV 2026
Low 30° Low 35° Low 49° Low 42° Low 38°
High 53° High 63° High 70° High 55° High 58°
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
Clear
1% Rain
Partly Cloudy
11% Rain
Partly Cloudy
18% Rain
Clear
13% Rain
Partly Cloudy
20% Rain
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 © 2026 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions