PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


PORTSMOUTH, NH
Current Weather

7:55 AM EDT MAR 14, 2026
Broken Clouds
32°F
Feels Like: 27°F
Dewpoint: 30°F
Rel. Hum.: 92%
Visibility: 7 miles
Wind: WSW at 5 mph
Pressure: 29.70 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
2025 Hurricanes

PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny. A slight chance of. Highs in the mid 40s. West winds 15 to 25 mph with gusts up to 35 mph.
TONIGHT
Mostly clear. Lows in the mid 20s. West winds 15 to 25 mph, diminishing to 10 to 15 mph after midnight.
SUNDAY
Partly sunny in the morning, then becoming mostly cloudy. Highs in the lower 40s. Northwest winds around 10 mph, becoming southeast with gusts up to 20 mph in the afternoon.
SUNDAY NIGHT
Mostly cloudy. A chance of rain after midnight. Lows in the lower 30s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
MONDAY
Rain. Highs in the upper 50s. Southeast winds 10 to 15 mph with gusts up to 35 mph. Chance of rain near 100 percent.
MONDAY NIGHT
Rain. Lows in the lower 40s. Chance of rain near 100 percent.
TUESDAY
Rain likely in the morning, then partly sunny in the afternoon. Highs in the upper 40s. Chance of rain 70 percent.
TUESDAY NIGHT
Mostly clear. Cooler with lows around 20.
WEDNESDAY
Mostly sunny. Highs in the upper 30s.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 20s.
THURSDAY
Mostly cloudy. Highs in the lower 40s.
THURSDAY NIGHT
Partly cloudy. Lows in the upper 20s.
FRIDAY
Partly sunny. Highs in the mid 40s.

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  3/13/2026
Saturday
14 MAR 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 1 AM 35° 28° Mostly Cloudy 53%
RAIN/SNOW
1.25–2.5 in
0% Thunder
( 4% severe)
SSE   9 78% 29°
Low 33° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 4 AM 35° 29° Partly Cloudy SW   7 82% 30°
High 46° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 7 AM 34° 27° Mostly Cloudy 9%

0% Thunder
( 0% severe)
WSW   8 75% 27°

Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 10 AM 42° 35° Mostly Cloudy W   14 50% 25°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 45° 38° Mostly Cloudy 5%

0% Thunder
( 2% severe)
W   17 41% 23°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 44° 36° Partly Cloudy W   18 40% 22°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 39° 31° Clear 3%

0% Thunder
( 0% severe)
W   15 45% 20°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 34° 25° Clear WNW   13 49% 18°
Sunday
15 MAR 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 31° 22° Clear 1%

0% Thunder
( 0% severe)
WNW   10 51% 16°
Low 25° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 28° 21° Partly Cloudy WNW   7 55% 15°
High 42° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 26° 22° Mostly Cloudy 1%

0% Thunder
( 0% severe)
WNW   3 57% 14°

Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 36° 34° Mostly Cloudy NNE   2 37% 14°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 39° 35° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SE   6 35% 15°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 39° 33° Mostly Cloudy SE   8 43% 19°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 37° 31° Mostly Cloudy 1%

0% Thunder
( 0% severe)
SSE   8 55% 23°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 36° 30° Mostly Cloudy SSE   8 69% 27°

PORTSMOUTH, NH extended weather forecast

Monday
16 MAR 2026
Tuesday
17 MAR 2026
Wednesday
18 MAR 2026
Thursday
19 MAR 2026
Friday
20 MAR 2026
Low 33° Low 39° Low 19° Low 25° Low 29°
High 52° High 45° High 38° High 43° High 46°
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
Overcast
99% Rain
Mostly Cloudy
100% Rain/Snow
Partly Cloudy
24% Snow
Mostly Cloudy
19% Snow
Mostly Cloudy
22% Rain/Snow
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