PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

5:55 PM EDT MAR 30, 2025
Overcast
Haze
39°F
Feels Like: 33°F
Dewpoint: 34°F
Rel. Hum.: 82%
Visibility: 6 miles
Wind: ESE at 9 mph
Pressure: 30.14 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Cloudy. Patchy very light drizzle this evening, then a chance of rain showers with patchy drizzle after midnight. Patchy fog after midnight. Lows in the upper 30s. East winds around 10 mph this evening, becoming light and variable. Chance of rain 30 percent.
MONDAY
Patchy fog in the morning. Cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Warmer with highs in the lower 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
MONDAY NIGHT
Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Lows around 40. South winds 10 to 15 mph, becoming southwest after midnight. Chance of rain 80 percent.
TUESDAY
Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the upper 40s. Northwest winds around 10 mph with gusts up to 30 mph. Chance of rain 30 percent.
TUESDAY NIGHT
Mostly clear. Lows in the mid 20s. Northwest winds around 10 mph. Gusts up to 25 mph in the evening.
WEDNESDAY
Partly sunny. Highs in the lower 40s.
WEDNESDAY NIGHT
Snow likely. Rain after midnight. Lows in the lower 30s. Chance of precipitation 80 percent.
THURSDAY
Rain. Highs in the upper 50s. Chance of rain 80 percent.
THURSDAY NIGHT
Mostly cloudy with a 40 percent chance of showers. Lows in the upper 40s.
FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs around 60.
FRIDAY NIGHT
Partly cloudy. Lows in the mid 30s.
SATURDAY
Partly sunny. Highs in the upper 40s.
SATURDAY NIGHT
Partly cloudy. A chance of rain showers after midnight. Lows in the mid 30s. Chance of rain 30 percent.

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  3/30/2025
Sunday
30 MAR 2025
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 39° 33° Mostly Cloudy 18%
RAIN
.01–.1 in
0% Thunder
( 0% severe)
ESE   9 76% 32°
High 40° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 39° 33° Mostly Cloudy ESE   9 76% 32°
Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 38° 34° Mostly Cloudy 55%
RAIN
.25–.5 in
0% Thunder
( 1% severe)
E   6 85% 34°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 39° 37° Mostly Cloudy E   2 85% 35°
Monday
31 MAR 2025
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 39° 37° Mostly Cloudy 50%
RAIN
.25–.5 in
0% Thunder
( 5% severe)
ENE   1 89% 36°
Low 38° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 40° 38° Overcast SE   3 92% 38°
High 63° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 43° 39° Mostly Cloudy 35%
RAIN
.01–.1 in
0% Thunder
( 4% severe)
S   7 93% 41°

Mostly Cloudy

Chance of Rain

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 53° 49° Mostly Cloudy SSW   12 86% 49°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 61° 59° Mostly Cloudy 41%
RAIN
***
0% Thunder
( 9% severe)
SSW   16 70% 51°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 61° 59° Mostly Cloudy SSW   15 72% 52°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 57° 54° Mostly Cloudy 84%
RAIN
***
0% Thunder
( 7% severe)
SSW   13 80% 51°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 56° 53° Mostly Cloudy SSW   10 83% 51°
Tuesday
1 APR 2025
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 52° 49° Mostly Cloudy 63%
RAIN
***
0% Thunder
( 1% severe)
W   9 86% 48°
Low 41° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 47° 43° Overcast WNW   9 80% 41°
High 50° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 43° 37° Mostly Cloudy 21%
RAIN/SNOW
.5–1.25 in
0% Thunder
( 0% severe)
NW   12 70% 34°

Mostly Cloudy

Chance of Rain & Snow

PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 45° 39° Mostly Cloudy NW   13 51% 28°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 48° 42° Partly Cloudy 5%

0% Thunder
( 0% severe)
NW   14 36% 23°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 46° 40° Partly Cloudy NW   14 34% 20°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 38° 31° Partly Cloudy     NW   10 40% 17°

PORTSMOUTH, NH extended weather forecast

Wednesday
2 APR 2025
Thursday
3 APR 2025
Friday
4 APR 2025
Saturday
5 APR 2025
Sunday
6 APR 2025
Low 26° Low 36° Low 45° Low 37° Low 35°
High 41° High 57° High 57° High 54° High 54°
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
7% Snow
Overcast
87% Rain/Ice
Partly Cloudy
28% Rain
Partly Cloudy
14% Rain
Mostly Cloudy
48% Rain
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