PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

4:55 PM EST NOV 4, 2026
Few Clouds
70°F
Feels Like: 70°F
Dewpoint: 52°F
Rel. Hum.: 53%
Visibility: 10 miles
Wind: S at 6 mph
Pressure: 29.96 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear this evening, then becoming partly cloudy. Lows in the mid 50s. Light and variable winds.
THURSDAY
Partly sunny in the morning, then mostly cloudy with a slight chance of showers in the afternoon. Highs in the lower 70s. Southwest winds around 10 mph with gusts up to 20 mph. Chance of rain 20 percent.
THURSDAY NIGHT
Partly cloudy with a slight chance of showers in the evening, then mostly cloudy with a chance of showers after midnight. Lows around 60. Southwest winds around 10 mph in the evening, becoming light and variable. Chance of rain 50 percent.
FRIDAY
Mostly cloudy. A chance of rain in the morning, then rain likely in the afternoon. Highs in the upper 60s. Light and variable winds. Chance of rain 60 percent.
FRIDAY NIGHT
Rain. Lows in the mid 50s. Light and variable winds. Chance of rain 80 percent.
SATURDAY
Rain likely, mainly in the morning. Highs in the lower 60s. Chance of rain 70 percent.
SATURDAY NIGHT
Mostly cloudy with a 50 percent chance of rain. Lows in the mid 40s.
SUNDAY
Mostly cloudy in the morning, then becoming partly sunny. A 40 percent chance of rain. Highs in the upper 50s.
SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 30s.
MONDAY
Partly sunny. Highs in the mid 50s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s.
TUESDAY
Partly sunny. Highs in the upper 50s.
TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s.

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/ 4/2026
Wednesday
4 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 74° 74° Partly Cloudy 1%

0% Thunder
( 0% severe)
SW   9 46% 52°
High 75° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 70° 70° Partly Cloudy SSW   8 55% 53°
Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 63° 63° Clear 1%

0% Thunder
( 0% severe)
SW   7 70% 53°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 60° 59° Partly Cloudy SW   7 78% 53°
Thursday
5 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 57° 56° Partly Cloudy 2%

0% Thunder
( 0% severe)
SW   7 86% 53°
Low 55° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 56° 54° Mostly Cloudy SSW   7 96% 55°
High 75° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 56° 54° Mostly Cloudy 15%
RAIN
<.01 in
0% Thunder
( 1% severe)
SSW   7 100% 56°

Mostly Cloudy

Chance of Rain

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 66° 66° Mostly Cloudy SSW   10 78% 59°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 72° 72° Mostly Cloudy 27%
RAIN
<.01 in
0% Thunder
( 3% severe)
SW   13 64% 59°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 69° 69° Mostly Cloudy SSW   12 73% 60°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 66° 66° Mostly Cloudy 6%

0% Thunder
( 3% severe)
SSW   9 84% 61°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 64° 64° Mostly Cloudy SSW   9 90% 61°
Friday
6 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 63° 63° Mostly Cloudy 46%
RAIN
.5–1 in
0% Thunder
( 4% severe)
SSW   7 90% 60°
Low 60° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 61° 61° Mostly Cloudy SSW   6 97% 60°
High 72° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 61° 62° Mostly Cloudy 45%
RAIN
>2 in
0% Thunder
( 2% severe)
SSW   3 97% 60°

Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 66° 66° Mostly Cloudy SW   3 84% 61°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 68° 68° Mostly Cloudy 63%
RAIN
***
0% Thunder
( 7% severe)
S   3 70% 58°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 64° 65° Mostly Cloudy SSE   5 84% 59°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 61° 62° Mostly Cloudy     ESE   2 93% 59°

PORTSMOUTH, NH extended weather forecast

Saturday
7 NOV 2026
Sunday
8 NOV 2026
Monday
9 NOV 2026
Tuesday
10 NOV 2026
Wednesday
11 NOV 2026
Low 52° Low 46° Low 39° Low 39° Low 38°
High 62° High 54° High 56° High 56° 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
92% Rain
Overcast
64% Rain
Clear
10% Rain
Partly Cloudy
13% Rain
Partly Cloudy
24% Rain
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