PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


PORTSMOUTH, NH
Current Weather

10:55 AM EDT OCT 28, 2026
Broken Clouds
45°F
Feels Like: 45°F
Dewpoint: 28°F
Rel. Hum.: 51%
Visibility: 10 miles
Wind: Calm
Pressure: 30.50 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
Partly sunny. Highs in the mid 50s. Light and variable winds.
TONIGHT
Mostly clear. Lows around 40. Light and variable winds.
THURSDAY
Mostly sunny. Highs in the upper 60s. Southwest winds around 10 mph.
THURSDAY NIGHT
Clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Southwest winds around 10 mph.
FRIDAY
Mostly sunny. Highs in the upper 60s. West winds around 10 mph.
FRIDAY NIGHT
Mostly clear. Lows in the mid 30s.
SATURDAY
Sunny. Highs in the mid 50s.
SATURDAY NIGHT
Mostly clear. Lows around 30.
SUNDAY
Mostly sunny. Highs around 60.
SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s.
MONDAY
Partly sunny. Highs in the lower 60s.
MONDAY NIGHT
Partly cloudy with a 30 percent chance of showers. Lows in the lower 40s.
TUESDAY
Partly sunny with a 30 percent chance of showers. Highs in the upper 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  7:00 PM EST 10/27/2026
Wednesday
28 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 1 AM 30° 25° Clear 0%

0% Thunder
( 0% severe)
NA   5 84% 26°
Low 26° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 4 AM 28° 23° Clear N   5 96% 27°
High 55° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 7 AM 27° 23° Partly Cloudy 4%

0% Thunder
( 0% severe)
N   3 100% 27°

Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 10 AM 46° 45° Mostly Cloudy   CALM 53% 30°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 52° 52° Mostly Cloudy 3%

0% Thunder
( 0% severe)
SSE   3 41% 29°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 51° 50° Mostly Cloudy S   5 52% 34°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 43° 40° Partly Cloudy 3%

0% Thunder
( 0% severe)
SSW   5 82% 38°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 40° 36° Clear SW   6 96% 39°
Thursday
29 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 39° 35° Clear 3%

0% Thunder
( 0% severe)
SW   6 92% 37°
Low 39° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 39° 34° Partly Cloudy SW   7 100% 39°
High 68° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 41° 36° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   7 100% 41°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 57° 55° Partly Cloudy SW   8 64% 45°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 66° 66° Clear 0%

0% Thunder
( 0% severe)
SW   10 50% 47°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 63° 62° Clear SW   10 60% 49°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 56° 53° Clear 0%

0% Thunder
( 1% severe)
SW   10 77% 49°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 54° 51° Clear SW   9 83% 49°

PORTSMOUTH, NH extended weather forecast

Friday
30 OCT 2026
Saturday
31 OCT 2026
Sunday
1 NOV 2026
Monday
2 NOV 2026
Tuesday
3 NOV 2026
Low 50° Low 40° Low 33° Low 39° Low 41°
High 65° High 52° High 57° High 60° High 51°
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
36% Rain
Clear
2% Rain
Clear
7% Rain
Mostly Cloudy
26% Rain
Mostly Cloudy
47% 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