PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

9:55 PM EST NOV 12, 2026
Overcast
Light Rain
Mist
41°F
Feels Like: 35°F
Dewpoint: 39°F
Rel. Hum.: 93%
Visibility: 5 miles
Wind: N at 10 mph
Pressure: 29.58 inches
Last 72 hours

Local Area Snow Depth

New Hampshire Current Weather

New Hampshire MOS Forecast Weather


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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Rain. Lows in the lower 30s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.
FRIDAY
Cloudy. Rain likely with a chance of snow in the morning, then a chance of rain in the afternoon. Little or no snow accumulation. Highs in the mid 40s. North winds around 10 mph with gusts up to 25 mph. Chance of precipitation 60 percent.
FRIDAY NIGHT
Mostly cloudy. Lows in the upper 20s. Light and variable winds.
SATURDAY
Mostly cloudy. Highs in the upper 40s. Light and variable winds.
SATURDAY NIGHT
Partly cloudy. Lows in the upper 20s.
SUNDAY
Partly sunny. Highs in the upper 40s.
SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 30s.
MONDAY
Mostly sunny. Highs around 50.
MONDAY NIGHT
Clear. Lows in the upper 20s.
TUESDAY
Mostly sunny. Highs in the mid 50s.
TUESDAY NIGHT
Mostly clear. Lows in the mid 30s.
WEDNESDAY
Mostly 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 AM EST 11/12/2026
Thursday
12 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 48° 43° Mostly Cloudy 58%
RAIN
.1–.25 in
0% Thunder
( 1% severe)
ENE   10 77% 41°
High 49° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 46° 40° Mostly Cloudy ENE   13 83% 41°
Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 43° 37° Mostly Cloudy 63%
RAIN
1–2 in
0% Thunder
( 5% severe)
ENE   12 93% 41°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 41° 34° Mostly Cloudy NE   12 100% 41°
Friday
13 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 38° 30° Mostly Cloudy 78%
RAIN
***
0% Thunder
( 3% severe)
NNE   13 100% 38°
Low 31° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 35° 26° Mostly Cloudy NNE   14 100% 35°
High 46° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 33° 24° Mostly Cloudy 44%
RAIN
.1–.25 in
0% Thunder
( 2% severe)
N   13 100% 33°

Mostly Cloudy

Chance of Rain

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 40° 33° Mostly Cloudy NNE   13 73% 32°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 43° 36° Mostly Cloudy 40%
RAIN
.1–.25 in
0% Thunder
( 0% severe)
NNE   13 57% 29°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 43° 38° Mostly Cloudy NA   9 60% 30°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 37° 32° Mostly Cloudy 34%
RAIN
<.01 in
0% Thunder
( 0% severe)
N   7 79% 31°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 34° 28° Mostly Cloudy N   7 85% 30°
Saturday
14 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 32° 26° Mostly Cloudy 18%
RAIN
<.01 in
0% Thunder
( 0% severe)
NNW   6 88% 29°
Low 28° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 31° 25° Mostly Cloudy NW   6 92% 29°
High 49° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 30° 23° Mostly Cloudy 4%

0% Thunder
( 0% severe)
NW   7 96% 29°

Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 42° 37° Mostly Cloudy NW   8 60% 29°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 46° 41° Mostly Cloudy 3%

0% Thunder
( 0% severe)
NW   9 45% 26°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 45° 41° Mostly Cloudy WNW   8 51% 28°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 37° 32° Partly Cloudy     WNW   7 72% 29°

PORTSMOUTH, NH extended weather forecast

Sunday
15 NOV 2026
Monday
16 NOV 2026
Tuesday
17 NOV 2026
Wednesday
18 NOV 2026
Thursday
19 NOV 2026
Low 31° Low 30° Low 30° Low 33° Low 38°
High 46° High 47° High 50° High 52° High 53°
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
Mostly Cloudy
9% Rain/Snow
Clear
4% Rain/Snow
Clear
13% Rain
Partly Cloudy
22% Rain
Partly Cloudy
20% Rain
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