PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


PORTSMOUTH, NH
Current Weather

9:55 PM EST DEC 26, 2025
Overcast
18°F
Feels Like: 8°F
Dewpoint: 3°F
Rel. Hum.: 46%
Visibility: 10 miles
Wind: NNW at 8 mph
Pressure: 30.09 inches
Last 72 hours

Local Area Snow Depth

New Hampshire Current Weather

New Hampshire MOS Forecast Weather


Regional Weather Maps


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2025 Hurricanes

PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Cloudy. A chance of snow this evening, then snow after midnight. Snow accumulation of 1 to 3 inches. Lows around 13. North winds around 10 mph. Gusts up to 25 mph after midnight. Chance of snow 80 percent.
SATURDAY
Cloudy with a chance of snow in the morning, then mostly sunny in the afternoon. Highs in the mid 20s. North winds around 10 mph with gusts up to 25 mph. Chance of snow 50 percent. Wind chill values as low as zero in the morning.
SATURDAY NIGHT
Mostly clear. Lows around 11. Light and variable winds.
SUNDAY
Partly sunny. Highs in the mid 30s. Light and variable winds.
SUNDAY NIGHT
Cloudy. Freezing rain and sleet likely after midnight. Little or no sleet accumulation. Lows in the mid 20s. Light and variable winds. Chance of precipitation 70 percent.
MONDAY
Rain, freezing rain and sleet in the morning, then rain in the afternoon. Highs around 40. Chance of precipitation near 100 percent.
MONDAY NIGHT
Rain likely in the evening, then partly cloudy after midnight. Lows in the mid 20s. Chance of rain 70 percent.
TUESDAY
Partly sunny. Highs around 30.
TUESDAY NIGHT
Partly cloudy. Lows around 20.
WEDNESDAY
Partly sunny. Highs in the lower 30s.
WEDNESDAY NIGHT
Partly cloudy. Lows around 20.
NEW YEARS DAY
Partly sunny. Highs in the upper 20s.
THURSDAY NIGHT
Partly cloudy. Lows around 10 above.

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 12/26/2025
Friday
26 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 21° 12° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NNW   7 32% -1°
High 22° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 21° 16° Mostly Cloudy N   3 34%
Mostly Cloudy

Chance of Rain & Snow

PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 18° 13° Mostly Cloudy 31%
RAIN/SNOW
<.05 in
0% Thunder
( 1% severe)
N   2 46%
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 18° 11° Mostly Cloudy N   5 52%
Saturday
27 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 18° Mostly Cloudy 63%
SNOW
2.5–5 in
0% Thunder
( 2% severe)
N   7 60%
Low 14° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 16° Overcast N   8 70%
High 27° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 16° Mostly Cloudy 18%
SNOW
.1–1 in
0% Thunder
( 0% severe)
N   9 67%

Decreasing Clouds



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 20° Mostly Cloudy N   9 52%
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 25° 16° Partly Cloudy 1%

0% Thunder
( 0% severe)
N   8 37%
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 24° 18° Clear NNW   5 39%
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 18° 13° Clear 0%

0% Thunder
( 0% severe)
NW   2 54%
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 18° 13° Partly Cloudy NW   2 57%
Sunday
28 DEC 2025
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 16° 11° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   2 60%
Low 12° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 15° Partly Cloudy WNW   3 57%
High 36° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 15° Clear 0%

0% Thunder
( 0% severe)
WNW   3 54%

Increasing Clouds



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 26° 22° Clear WNW   3 37%
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 34° 30° Partly Cloudy 5%

0% Thunder
( 0% severe)
W   5 30%
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 34° 30° Mostly Cloudy WSW   5 37% 12°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 28° 24° Mostly Cloudy     WSW   3 55% 15°

PORTSMOUTH, NH extended weather forecast

Monday
29 DEC 2025
Tuesday
30 DEC 2025
Wednesday
31 DEC 2025
Thursday
1 JAN 2026
Friday
2 JAN 2026
Low 25° Low 27° Low 15° Low 16° Low 13°
High 41° High 32° High 32° High 28° 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
90% Ice
Overcast
58% Rain/Snow
Partly Cloudy
20% Snow
Partly Cloudy
25% Snow
Mostly Cloudy
25% Snow
WEATHER SELECT BOX EXAMPLES:
for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:
Portsmouth, NH
Portsmouth, NH snow
Portsmouth, NH radar
NH map
-or-
-or-
-or-
 
03803
03803 snow
03803 radar
 
-or-
-or-
 
 
NH
NH snow
 
 
Copyright © 2024 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions