PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

5:55 AM EST DEC 3, 2025
Broken Clouds
32°F
Feels Like: 27°F
Dewpoint: 28°F
Rel. Hum.: 85%
Visibility: 10 miles
Wind: W at 5 mph
Pressure: 29.78 inches
Last 72 hours

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny. Highs in the upper 30s. Northwest winds around 10 mph with gusts up to 20 mph this morning, becoming light and variable.
TONIGHT
Mostly cloudy. Lows in the mid 20s. Light and variable winds.
THURSDAY
Mostly cloudy. A slight chance of rain or snow showers in the morning, then a chance of snow or rain showers in the afternoon. Highs in the upper 30s. Temperatures falling to around 30 in the afternoon. West winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of precipitation 40 percent.
THURSDAY NIGHT
Mostly clear. Lows around 7 above. Northwest winds 10 to 15 mph with gusts up to 30 mph. Wind chill values as low as 7 below after midnight.
FRIDAY
Partly sunny. Highs in the mid 20s. West winds around 10 mph. Wind chill values as low as 7 below in the morning.
FRIDAY NIGHT
Partly cloudy. Lows around 15.
SATURDAY
Mostly cloudy. Highs in the mid 30s.
SATURDAY NIGHT
Partly cloudy. Lows around 20.
SUNDAY
Partly sunny. Highs in the mid 30s.
SUNDAY NIGHT
Partly cloudy. Lows 10 to 15.
MONDAY
Partly sunny. Highs in the upper 20s.
MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows around 10 above.
TUESDAY
Partly sunny. Highs around 30.

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 PM EST 12/ 2/2025
Wednesday
3 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 1 AM 32° 22° Mostly Cloudy 63%
SNOW
.1–1 in
0% Thunder
( 1% severe)
N   13 88% 29°
Low 27° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 4 AM 32° 24° Mostly Cloudy NNW   10 85% 28°
High 39° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 7 AM 28° 20° Partly Cloudy 1%

0% Thunder
( 0% severe)
NW   8 84% 24°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 10 AM 34° 27° Clear NW   8 65% 24°
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 37° 32° Partly Cloudy 1%

0% Thunder
( 0% severe)
WNW   7 55% 23°
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 34° 29° Partly Cloudy WSW   6 60% 22°
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 30° 26° Mostly Cloudy 8%

0% Thunder
( 0% severe)
WSW   3 67% 21°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 28° 24° Mostly Cloudy SW   3 73% 21°
Thursday
4 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 29° 24° Mostly Cloudy 8%

0% Thunder
( 0% severe)
SW   5 70% 21°
Low 25° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 28° 21° Mostly Cloudy SW   7 73% 21°
High 39° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 27° 19° Mostly Cloudy 10%
SNOW
<.1 in
0% Thunder
( 0% severe)
WSW   8 80% 22°

Mostly Cloudy

Chance of Snow

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 35° 27° Mostly Cloudy WSW   12 66% 25°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 37° 28° Mostly Cloudy 27%
SNOW
<.1 in
0% Thunder
( 2% severe)
W   15 58% 24°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 32° 21° Mostly Cloudy WNW   17 51% 17°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 24° 11° Partly Cloudy 4%

0% Thunder
( 0% severe)
WNW   15 51% 10°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 18° Partly Cloudy WNW   13 46%

PORTSMOUTH, NH extended weather forecast

Friday
5 DEC 2025
Saturday
6 DEC 2025
Sunday
7 DEC 2025
Monday
8 DEC 2025
Tuesday
9 DEC 2025
Low 7° Low 11° Low 22° Low 15° Low 9°
High 20° High 34° High 38° High 25° High 29°
PORTSMOUTH, NH 03803 weather forecast Day 3 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
Clear
4% Snow
Partly Cloudy
14% Snow
Partly Cloudy
18% Snow
Clear
17% Snow
Partly Cloudy
16% Snow
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