PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

4:55 PM EST DEC 20, 2025
Broken Clouds
34°F
Feels Like: 32°F
Dewpoint: 14°F
Rel. Hum.: 41%
Visibility: 10 miles
Wind: SSE at 3 mph
Pressure: 30.08 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 cloudy. Lows in the lower 30s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
SUNDAY
Partly sunny. Highs in the lower 40s. Temperatures falling into the mid 30s in the afternoon. West winds 10 to 15 mph with gusts up to 30 mph.
SUNDAY NIGHT
Partly cloudy in the evening, then clearing. Lows around 19. Northwest winds 10 to 15 mph with gusts up to 25 mph.
MONDAY
Mostly sunny. Highs in the lower 30s. Northwest winds around 10 mph with gusts up to 25 mph.
MONDAY NIGHT
Partly cloudy. Lows around 20.
TUESDAY
Snow in the morning, then rain and snow in the afternoon. Highs in the upper 30s. Chance of precipitation 90 percent.
TUESDAY NIGHT
Snow and rain likely in the evening, then partly cloudy with a chance of snow after midnight. Lows in the mid 20s. Chance of precipitation 70 percent.
WEDNESDAY
Mostly sunny. Highs in the mid 30s.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows around 20.
CHRISTMAS DAY
Mostly cloudy. Highs in the upper 30s.
THURSDAY NIGHT
Mostly cloudy. A chance of snow after midnight. Lows in the mid 20s. Chance of snow 30 percent.
FRIDAY
A chance of snow in the morning. Partly sunny with a chance of rain. Highs in the lower 40s. Chance of precipitation 40 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 12/20/2025
Saturday
20 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 36° 28° Partly Cloudy 3%

0% Thunder
( 0% severe)
W   10 32% 11°
High 37° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 35° 30° Mostly Cloudy WSW   6 39% 14°
Mostly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 32° 26° Mostly Cloudy 4%

0% Thunder
( 0% severe)
SSW   7 53% 18°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 34° 26° Mostly Cloudy S   10 57% 21°
Sunday
21 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 35° 27° Mostly Cloudy 7%

0% Thunder
( 1% severe)
SSW   12 63% 24°
Low 30° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 36° 28° Mostly Cloudy SSW   12 66% 26°
High 43° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 36° 28° Mostly Cloudy 6%

0% Thunder
( 1% severe)
SW   10 66% 26°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 40° 33° Partly Cloudy W   13 56% 26°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 41° 33° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   16 43% 21°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 36° 27° Partly Cloudy WNW   14 41% 16°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 30° 21° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   10 48% 14°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 28° 19° Partly Cloudy WNW   10 47% 12°
Monday
22 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 25° 14° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   12 48% 10°
Low 19° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 22° 10° Clear WNW   13 50%
High 32° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 20° Clear 0%

0% Thunder
( 0% severe)
WNW   12 49%

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 25° 14° Partly Cloudy WNW   13 39%
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 30° 20° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   13 32%
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 30° 21° Partly Cloudy W   10 35%
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 26° 19° Partly Cloudy     W   6 49% 11°

PORTSMOUTH, NH extended weather forecast

Tuesday
23 DEC 2025
Wednesday
24 DEC 2025
Thursday
25 DEC 2025
Friday
26 DEC 2025
Saturday
27 DEC 2025
Low 23° Low 24° Low 22° Low 22° Low 25°
High 34° High 38° High 41° High 37° 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
Overcast
73% Snow
Mostly Cloudy
58% Snow
Partly Cloudy
10% Rain/Snow
Overcast
45% Rain/Snow
Partly Cloudy
17% Rain/Snow
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