PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

6:55 AM EST JAN 2, 2026
Overcast
16°F
Feels Like: 8°F
Dewpoint: 3°F
Rel. Hum.: 51%
Visibility: 10 miles
Wind: WSW at 5 mph
Pressure: 29.69 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny. Highs in the mid 20s. West winds around 10 mph with gusts up to 25 mph. Wind chill values as low as zero this morning.
TONIGHT
Mostly clear. Lows around 14. West winds around 10 mph.
SATURDAY
Mostly sunny. Highs in the upper 20s. West winds around 10 mph with gusts up to 25 mph.
SATURDAY NIGHT
Partly cloudy in the evening, then becoming cloudy. Lows around 14. Light and variable winds.
SUNDAY
Mostly cloudy in the morning, then clearing. Highs in the mid 20s. Light and variable winds.
SUNDAY NIGHT
Mostly clear. Lows 5 to 10 above.
MONDAY
Partly sunny. Highs in the lower 20s.
MONDAY NIGHT
Cloudy with a 40 percent chance of snow. Lows around 15.
TUESDAY
Mostly cloudy. Highs in the mid 30s.
TUESDAY NIGHT
Cloudy with a 30 percent chance of snow. Lows in the mid 20s.
WEDNESDAY
A chance of snow in the morning. Mostly cloudy with a chance of rain. Highs around 40. Chance of precipitation 30 percent.
WEDNESDAY NIGHT
Partly cloudy. Lows in the mid 20s.
THURSDAY
Partly sunny. Highs in the lower 40s.

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  1/ 1/2026
Friday
2 JAN 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 0 hours 1 AM 14° Partly Cloudy 1%

0% Thunder
( 0% severe)
W   12 41% -3°
Low 11° PORTSMOUTH, NH 03803 weather forecast Day 1, 3 hours 4 AM 13° Mostly Cloudy WSW   9 50%
High 26° PORTSMOUTH, NH 03803 weather forecast Day 1, 6 hours 7 AM 12° Clear 1%

0% Thunder
( 0% severe)
WSW   8 59%

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 1, 9 hours 10 AM 19° Clear W   12 49%
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 25° 14° Partly Cloudy 1%

0% Thunder
( 1% severe)
W   13 37%
PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 24° 13° Partly Cloudy W   12 39%
PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 20° 11° Partly Cloudy 1%

0% Thunder
( 1% severe)
W   7 49%
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 19° Partly Cloudy W   8 55%
Saturday
3 JAN 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 18° Partly Cloudy 2%

0% Thunder
( 0% severe)
W   8 57%
Low 14° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 16° Partly Cloudy W   9 57%
High 26° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 14° Clear 0%

0% Thunder
( 0% severe)
W   8 63%

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 20° Partly Cloudy W   12 49%
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 25° 13° Partly Cloudy 0%

0% Thunder
( 0% severe)
W   14 39%
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 24° 14° Partly Cloudy WNW   9 41%
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 19° 14° Mostly Cloudy 4%

0% Thunder
( 0% severe)
WNW   3 52%
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 18° 13° Mostly Cloudy WNW   2 57%

PORTSMOUTH, NH extended weather forecast

Sunday
4 JAN 2026
Monday
5 JAN 2026
Tuesday
6 JAN 2026
Wednesday
7 JAN 2026
Thursday
8 JAN 2026
Low 15° Low 8° Low 16° Low 23° Low 28°
High 27° High 21° High 32° High 39° High 45°
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
Mostly Cloudy
44% Snow
Partly Cloudy
13% Snow
Overcast
39% Snow
Overcast
31% Ice
Overcast
27% Rain
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