PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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PORTSMOUTH, NH
Current Weather

6:55 PM EDT OCT 13, 2026
Overcast
Light Rain
Mist
46°F
Feels Like: 41°F
Dewpoint: 46°F
Rel. Hum.: 100%
Visibility: 1 miles
Wind: NW at 9 mph
Pressure: 29.93 inches
Last 72 hours

Local Area Snow Depth

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PORTSMOUTH, NH 03803
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Cloudy with a chance of rain and thunderstorms in the evening, then partly cloudy with a slight chance of rain and thunderstorms after midnight. Areas of fog in the evening, then patchy fog after midnight. Lows in the mid 50s. South winds around 10 mph in the evening, becoming light and variable. Chance of rain 50 percent.
WEDNESDAY
Patchy fog in the morning. Partly sunny. Warmer with highs in the mid 70s. West winds around 10 mph.
WEDNESDAY NIGHT
Mostly clear. Less humid with lows in the mid 40s. Northwest winds around 10 mph.
THURSDAY
Mostly sunny. Highs in the lower 60s. Northwest winds around 10 mph in the morning, becoming light and variable.
THURSDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 40s. Chance of rain 40 percent.
FRIDAY
Showers. Highs in the lower 60s. Chance of rain near 100 percent.
FRIDAY NIGHT
Showers in the evening, then partly cloudy with a chance of showers after midnight. Lows in the upper 30s. Chance of rain 90 percent.
SATURDAY
Mostly sunny. Highs in the upper 40s.
SATURDAY NIGHT
Mostly clear. Lows in the lower 30s.
SUNDAY
Mostly sunny. Highs in the lower 50s.
SUNDAY NIGHT
Mostly clear. Lows in the mid 30s.
MONDAY
Partly sunny. Highs around 60.

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  8:00 AM EDT 10/13/2026
Tuesday
13 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 54° 51° Mostly Cloudy 98%
RAIN
***
0% Thunder
( 12% severe)
ESE   10 90% 51°
High 58° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 56° 53° Mostly Cloudy SE   10 90% 53°
Mostly Cloudy

Rain

PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 57° 55° Mostly Cloudy 76%
RAIN
>2 in
0% Thunder
( 23% severe)
S   9 100% 57°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 57° 56° Mostly Cloudy SSW   6 100% 57°
Wednesday
14 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 57° 57° Mostly Cloudy 5%

0% Thunder
( 10% severe)
WSW   5 100% 57°
Low 55° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 57° 57° Mostly Cloudy SW   5 100% 57°
High 77° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 58° 57° Partly Cloudy 5%

0% Thunder
( 2% severe)
WSW   7 100% 58°

Partly Cloudy



PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 69° 69° Partly Cloudy W   10 78% 62°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 74° 74° Partly Cloudy 11%
RAIN
<.01 in
0% Thunder
( 3% severe)
WNW   13 59% 59°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 70° 70° Partly Cloudy WNW   10 63% 57°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 62° 61° Clear 0%

0% Thunder
( 0% severe)
NW   8 75% 54°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 57° 55° Clear NW   9 77% 50°
Thursday
15 OCT 2026
PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 2 AM 53° 50° Clear 0%

0% Thunder
( 0% severe)
NW   10 80% 47°
Low 47° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 5 AM 50° 46° Clear NW   10 77% 43°
High 62° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 8 AM 48° 44° Clear 0%

0% Thunder
( 0% severe)
NW   9 77% 41°

Clear



PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 11 AM 56° 54° Clear NNW   9 49% 37°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 2 PM 60° 59° Clear 0%

0% Thunder
( 0% severe)
NNW   7 35% 32°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 5 PM 58° 57° Partly Cloudy NW   6 37% 32°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 8 PM 49° 48° Partly Cloudy     WNW   3 61% 36°

PORTSMOUTH, NH extended weather forecast

Friday
16 OCT 2026
Saturday
17 OCT 2026
Sunday
18 OCT 2026
Monday
19 OCT 2026
Tuesday
20 OCT 2026
Low 44° Low 42° Low 30° Low 37° Low 43°
High 62° High 49° High 49° High 56° High 62°
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% Rain
Partly Cloudy
43% Rain/Snow
Partly Cloudy
4% Rain/Snow
Partly Cloudy
16% Rain
Partly Cloudy
30% Rain
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