PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

8:55 PM EST NOV 11, 2026
Scattered Clouds
45°F
Feels Like: 45°F
Dewpoint: 36°F
Rel. Hum.: 71%
Visibility: 10 miles
Wind: Calm
Pressure: 29.86 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Cloudy. Lows around 40. Light and variable winds.
THURSDAY
A chance of rain in the morning, then rain in the afternoon. Highs around 50. Northeast winds around 10 mph. Gusts up to 25 mph in the afternoon. Chance of rain near 100 percent.
THURSDAY NIGHT
Rain. Lows in the mid 30s. Northeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.
FRIDAY
Rain, mainly in the morning. Highs in the mid 40s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent.
FRIDAY NIGHT
Cloudy with a 50 percent chance of rain. Lows in the lower 30s. North winds around 10 mph in the evening, becoming light and variable.
SATURDAY
Mostly cloudy. A chance of rain in the morning. Highs in the upper 40s. Chance of rain 30 percent.
SATURDAY NIGHT
Partly cloudy. Lows in the upper 20s.
SUNDAY
Partly sunny. Highs in the upper 40s.
SUNDAY NIGHT
Partly cloudy. Lows in the upper 20s.
MONDAY
Mostly sunny. Highs around 50.
MONDAY NIGHT
Mostly clear. Lows in the upper 20s.
TUESDAY
Mostly sunny. Highs in the lower 50s.
TUESDAY NIGHT
Mostly clear. Lows in the upper 20s.

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 11/11/2026
Wednesday
11 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 52° 48° Partly Cloudy 1%

0% Thunder
( 0% severe)
WNW   10 41% 29°
High 53° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 49° 47° Mostly Cloudy WNW   6 50% 31°
Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 41° 39° Mostly Cloudy 3%

0% Thunder
( 0% severe)
NNW   2 70% 32°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 38° 36° Mostly Cloudy   CALM 79% 32°
Thursday
12 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 37° 35° Mostly Cloudy 11%
RAIN
<.01 in
0% Thunder
( 0% severe)
  CALM 85% 33°
Low 35° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 37° 35° Mostly Cloudy   CALM 89% 34°
High 52° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 38° 34° Mostly Cloudy 27%
RAIN
<.01 in
0% Thunder
( 0% severe)
NNE   5 92% 36°

Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 48° 44° Mostly Cloudy ENE   8 71% 39°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 49° 44° Mostly Cloudy 58%
RAIN
.1–.25 in
0% Thunder
( 2% severe)
ENE   12 68% 39°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 48° 42° Mostly Cloudy NE   14 77% 41°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 44° 38° Mostly Cloudy 94%
RAIN
***
0% Thunder
( 6% severe)
NE   13 93% 42°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 42° 35° Mostly Cloudy NE   13 100% 42°
Friday
13 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 39° 31° Overcast 91%
RAIN
***
0% Thunder
( 3% severe)
NNE   14 100% 39°
Low 32° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 36° 27° Overcast NNE   15 100% 36°
High 46° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 35° 25° Mostly Cloudy 62%
RAIN
***
0% Thunder
( 1% severe)
NNE   15 100% 35°

Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 41° 33° Mostly Cloudy N   16 79% 35°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 43° 35° Mostly Cloudy 49%
RAIN
1–2 in
0% Thunder
( 1% severe)
N   16 65% 32°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 42° 34° Mostly Cloudy N   15 67% 32°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 38° 30° Mostly Cloudy     N   12 85% 34°

PORTSMOUTH, NH extended weather forecast

Saturday
14 NOV 2026
Sunday
15 NOV 2026
Monday
16 NOV 2026
Tuesday
17 NOV 2026
Wednesday
18 NOV 2026
Low 32° Low 30° Low 29° Low 30° Low 34°
High 45° High 47° High 47° High 47° High 50°
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
Overcast
71% Rain/Snow
Clear
7% Rain/Snow
Clear
15% Rain
Partly Cloudy
20% Rain
Partly Cloudy
29% Rain
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