PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

4:55 PM EST DEC 8, 2025
Few Clouds
19°F
Feels Like: 6°F
Dewpoint: -4°F
Rel. Hum.: 30%
Visibility: 10 miles
Wind: WNW at 13 mph
Pressure: 30.24 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows around 8 above. Northwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable. Wind chill values as low as zero.
TUESDAY
Mostly sunny. Highs around 30. Light and variable winds.
TUESDAY NIGHT
Cloudy with a 40 percent chance of snow showers. Lows around 20. Light and variable winds.
WEDNESDAY
Mostly cloudy. A chance of snow showers in the morning, then rain in the afternoon. Little or no snow accumulation. Highs around 40. Southwest winds around 10 mph with gusts up to 20 mph. Chance of precipitation 80 percent.
WEDNESDAY NIGHT
Rain likely in the evening, then partly cloudy with a chance of rain after midnight. Lows around 30. Chance of rain 70 percent.
THURSDAY
Partly sunny. Highs in the upper 30s.
THURSDAY NIGHT
Partly cloudy. Lows around 20.
FRIDAY
Mostly sunny. Highs in the lower 30s.
FRIDAY NIGHT
Partly cloudy. Lows around 20.
SATURDAY
Partly sunny. A chance of snow in the morning. Highs in the lower 30s. Chance of snow 30 percent.
SATURDAY NIGHT
Partly cloudy. Lows 15 to 20.
SUNDAY
Partly sunny. Highs 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 12/ 8/2025
Monday
8 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 24° 12° Clear 0%

0% Thunder
( 0% severe)
NW   13 31%
High 25° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 21° 10° Clear WNW   10 36%
Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 16° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   8 46%
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 14° Partly Cloudy WNW   6 48%
Tuesday
9 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 11° Clear 0%

0% Thunder
( 0% severe)
WNW   5 56%
Low 7° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 10° Clear WNW   3 56% -1°
High 29° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM Clear 0%

0% Thunder
( 0% severe)
W   3 59% -1°

Increasing Clouds



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 18° 13° Clear W   3 42%
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 26° 18° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   7 29%
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 24° 16° Mostly Cloudy SSW   7 35%
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 22° 13° Mostly Cloudy 26%
RAIN/SNOW
<.05 in
0% Thunder
( 4% severe)
SSW   8 47%
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 25° 16° Mostly Cloudy SSW   8 62% 15°
Wednesday
10 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 26° 17° Mostly Cloudy 22%
RAIN/SNOW
<.05 in
0% Thunder
( 3% severe)
SW   8 80% 21°
Low 22° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 28° 20° Mostly Cloudy SW   8 76% 22°
High 43° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 28° 20° Mostly Cloudy 30%
RAIN
.01–.1 in
0% Thunder
( 1% severe)
SW   8 80% 23°

Mostly Cloudy

Rain Likely

PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 34° 26° Mostly Cloudy SSW   10 72% 26°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 39° 32° Mostly Cloudy 76%
RAIN
***
0% Thunder
( 2% severe)
S   12 67% 29°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 40° 33° Mostly Cloudy SSW   10 76% 33°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 38° 31° Overcast     SW   9 89% 35°

PORTSMOUTH, NH extended weather forecast

Thursday
11 DEC 2025
Friday
12 DEC 2025
Saturday
13 DEC 2025
Sunday
14 DEC 2025
Monday
15 DEC 2025
Low 33° Low 19° Low 19° Low 14° Low 14°
High 39° High 34° High 37° High 27° High 30°
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
76% Rain/Snow
Clear
7% Snow
Mostly Cloudy
35% Snow
Partly Cloudy
16% Snow
Partly Cloudy
21% Snow
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