PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

11:55 AM EST JAN 16, 2026
Few Clouds
25°F
Feels Like: 12°F
Dewpoint: 3°F
Rel. Hum.: 33%
Visibility: 10 miles
Wind: W at 16 mph, gusts to 26
Pressure: 29.60 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Mostly sunny. Colder with highs in the upper 20s. West winds 10 to 15 mph with gusts up to 30 mph.
TONIGHT
Partly cloudy in the evening, then mostly cloudy with a slight chance of snow after midnight. Lows in the lower 20s. West winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable. Chance of snow 20 percent.
SATURDAY
Cloudy with a chance of snow. Rain likely in the afternoon. Little or no snow accumulation. Highs in the upper 30s. Light and variable winds, becoming southwest around 10 mph in the afternoon. Chance of precipitation 70 percent.
SATURDAY NIGHT
Mostly cloudy. A chance of rain and snow in the evening. Lows in the upper 20s. Light and variable winds. Chance of precipitation 40 percent.
SUNDAY
Cloudy. A chance of snow and rain in the afternoon. Highs in the upper 30s. Light and variable winds. Chance of precipitation 40 percent.
SUNDAY NIGHT
Cloudy in the evening, then becoming partly cloudy. A 40 percent chance of snow. Lows in the lower 20s.
MARTIN LUTHER KING JR DAY
Partly sunny. Highs in the lower 30s.
MONDAY NIGHT
Partly cloudy in the evening, then clearing. Lows 10 to 15.
TUESDAY
Mostly sunny. Highs in the lower 20s.
TUESDAY NIGHT
Mostly clear. Lows around 10 above.
WEDNESDAY
Partly sunny. Highs in the mid 20s.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows 15 to 20.
THURSDAY
Mostly cloudy with a 30 percent chance of snow. Highs in the lower 30s.

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  1/16/2026
Friday
16 JAN 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 1 PM 28° 15° Clear 0%

0% Thunder
( 0% severe)
W   18 28%
High 30° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 4 PM 29° 18° Clear W   14 25%
Increasing Clouds



PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 7 PM 25° 18° Clear 6%

0% Thunder
( 0% severe)
W   6 32%
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 10 PM 24° 20° Mostly Cloudy WSW   3 39%
Saturday
17 JAN 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 1 AM 24° 20° Mostly Cloudy 30%
SNOW
<.1 in
0% Thunder
( 1% severe)
SW   2 48%
Low 22° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 4 AM 25° 21° Mostly Cloudy S   3 51% 11°
High 40° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 7 AM 27° 22° Mostly Cloudy 45%
SNOW
>20 in
0% Thunder
( 1% severe)
S   5 66% 18°

Mostly Cloudy

Rain & Snow Likely

PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 10 AM 33° 27° Mostly Cloudy SSW   7 74% 26°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 1 PM 38° 32° Mostly Cloudy 73%
RAIN/SNOW
***
0% Thunder
( 2% severe)
SSW   8 70% 29°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 4 PM 38° 32° Mostly Cloudy SW   8 73% 30°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 7 PM 35° 30° Mostly Cloudy 14%
RAIN
.01–.1 in
0% Thunder
( 0% severe)
WSW   6 82% 30°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 10 PM 33° 28° Mostly Cloudy WSW   6 81% 28°
Sunday
18 JAN 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 1 AM 31° 25° Mostly Cloudy 6%

0% Thunder
( 0% severe)
WSW   6 84% 27°
Low 28° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 4 AM 30° 25° Mostly Cloudy WSW   5 81% 25°
High 39° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 7 AM 29° 25° Mostly Cloudy 20%
SNOW
<.1 in
0% Thunder
( 0% severe)
SW   3 84% 25°

Mostly Cloudy

Chance of Rain & Snow

PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 10 AM 34° 29° Mostly Cloudy SW   6 72% 26°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 1 PM 37° 32° Mostly Cloudy 31%
RAIN
.5–1 in
0% Thunder
( 1% severe)
SW   7 61% 25°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 4 PM 36° 31° Mostly Cloudy SW   6 63% 25°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 7 PM 32° 29° Mostly Cloudy     W   3 74% 25°

PORTSMOUTH, NH extended weather forecast

Monday
19 JAN 2026
Tuesday
20 JAN 2026
Wednesday
21 JAN 2026
Thursday
22 JAN 2026
Friday
23 JAN 2026
Low 21° Low 16° Low 8° Low 15° Low 14°
High 32° High 26° High 24° High 31° High 28°
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
50% Snow
Partly Cloudy
28% Snow
Partly Cloudy
23% Snow
Mostly Cloudy
44% Snow
Partly Cloudy
21% Snow
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