PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

4:55 PM EST NOV 5, 2026
Overcast
68°F
Feels Like: 68°F
Dewpoint: 64°F
Rel. Hum.: 87%
Visibility: 10 miles
Wind: SSE at 5 mph
Pressure: 29.82 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy with a slight chance of showers in the evening, then cloudy with a chance of showers after midnight. Lows around 60. Southwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable. Chance of rain 50 percent.
FRIDAY
Cloudy. A chance of showers in the morning, then showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Light and variable winds. Chance of rain 80 percent.
FRIDAY NIGHT
Patchy fog in the evening. Showers. Lows in the lower 50s. Light and variable winds. Chance of rain near 100 percent.
SATURDAY
Cloudy. Showers, mainly in the morning. Highs in the upper 50s. Northeast winds around 10 mph. Chance of rain 80 percent.
SATURDAY NIGHT
A chance of showers in the evening, then showers after midnight. Lows in the lower 40s. Chance of rain 80 percent.
SUNDAY
Showers likely in the morning, then partly sunny in the afternoon. Highs in the upper 50s. Chance of rain 70 percent.
SUNDAY NIGHT
Partly cloudy in the evening, then clearing. 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 lower 60s.
TUESDAY NIGHT
Mostly clear. Lows in the upper 30s.
VETERANS DAY
Mostly sunny. 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 AM EST 11/ 5/2026
Thursday
5 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 71° 71° Mostly Cloudy 54%
RAIN
.01–.1 in
0% Thunder
( 4% severe)
SSW   13 66% 59°
High 72° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 68° 68° Mostly Cloudy SSW   12 78% 61°
Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 66° 66° Mostly Cloudy 16%
RAIN
.01–.1 in
0% Thunder
( 2% severe)
SSW   10 84% 61°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 64° 64° Mostly Cloudy SSW   9 90% 61°
Friday
6 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 63° 63° Mostly Cloudy 46%
RAIN
***
0% Thunder
( 2% severe)
SSW   8 87% 59°
Low 60° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 61° 61° Mostly Cloudy S   6 93% 59°
High 71° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 61° 62° Mostly Cloudy 54%
RAIN
***
0% Thunder
( 6% severe)
SSW   3 97% 60°

Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 65° 65° Mostly Cloudy S   3 84% 60°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 67° 67° Mostly Cloudy 84%
RAIN
***
0% Thunder
( 14% severe)
ESE   5 73% 58°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 64° 65° Mostly Cloudy SE   5 84% 59°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 60° 61° Mostly Cloudy 87%
RAIN
***
0% Thunder
( 8% severe)
SSE   2 96% 59°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 58° 59° Mostly Cloudy NE   2 100% 58°
Saturday
7 NOV 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 57° 57° Mostly Cloudy 84%
RAIN
***
0% Thunder
( 5% severe)
NNE   5 96% 56°
Low 53° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 55° 53° Overcast NNE   7 100% 55°
High 61° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 53° 50° Mostly Cloudy 41%
RAIN
.01–.1 in
0% Thunder
( 4% severe)
NNE   8 100% 53°

Mostly Cloudy

Chance of Rain

PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 56° 53° Mostly Cloudy NNE   10 86% 52°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 58° 56° Mostly Cloudy 25%
RAIN
.01–.1 in
0% Thunder
( 1% severe)
NNE   10 72% 49°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 56° 54° Mostly Cloudy NNE   9 74% 48°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 51° 48° Mostly Cloudy     NNE   8 89% 48°

PORTSMOUTH, NH extended weather forecast

Sunday
8 NOV 2026
Monday
9 NOV 2026
Tuesday
10 NOV 2026
Wednesday
11 NOV 2026
Thursday
12 NOV 2026
Low 41° Low 36° Low 39° Low 42° Low 34°
High 48° High 52° High 53° High 53° High 48°
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
84% Rain
Partly Cloudy
14% Rain
Partly Cloudy
13% Rain
Partly Cloudy
23% Rain
Mostly Cloudy
38% Rain
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