PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
8:55 PM EDT SEP 7, 2026
Clear 70°F
Feels Like:	70°F
Dewpoint:	52°F
Rel. Hum.:	53%
Visibility:	10 miles
Wind:	W at 7 mph
Pressure:	30.08 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)

03803 WEATHER FORECAST
10-Day model forecast maps 2026 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly clear this evening, then becoming partly cloudy. Lows in the upper 50s. Light and variable winds.

TUESDAY
Partly sunny. Highs in the upper 70s. Light and variable winds.

TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s. Light and variable winds.

WEDNESDAY
Mostly cloudy. Highs in the mid 70s. Light and variable winds, becoming southeast around 10 mph in the afternoon.

WEDNESDAY NIGHT
Mostly cloudy. Showers likely after midnight. Lows in the upper 60s. South winds around 10 mph with gusts up to 25 mph. Chance of rain 60 percent.

THURSDAY
Partly sunny. A chance of showers in the morning. Highs in the mid 80s. Chance of rain 50 percent.

THURSDAY NIGHT
Partly cloudy. Lows around 60.

FRIDAY
Mostly sunny. Highs in the mid 70s.

FRIDAY NIGHT
Mostly clear. Lows in the mid 50s.

SATURDAY
Mostly sunny. Highs in the lower 70s.

SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.

SUNDAY
Partly sunny. Highs in the upper 70s.

SUNDAY NIGHT
Partly cloudy. Lows around 60.

03803 WEATHER SATELLITE LOOPS

Visible Weather Satellite
PORTSMOUTH, NH 03803

Infrared Weather Satellite
PORTSMOUTH, NH 03803

03803 WEATHER RADAR LOOP

NEXRAD Weather Radar
PORTSMOUTH, NH 03803

MOS COMPUTER WEATHER FORECAST

PORTSMOUTH, NH 3 hourly weather forecast

weather forecast created 8:00 AM EDT 9/ 7/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
7 SEP 2026

2 PM

79°

79°

Clear

0%

0% Thunder
( 0% severe)

NW 9

36%

50°

High 80°

5 PM

79°

79°

Clear

NW 10

38%

51°

Clear

8 PM

69°

69°

Clear

0%

0% Thunder
( 0% severe)

NW 8

53%

51°

11 PM

63°

63°

Partly Cloudy

WNW 6

67%

52°

Tuesday
8 SEP 2026

2 AM

61°

60°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

W 7

75%

53°

Low 60°

5 AM

61°

60°

Mostly Cloudy

W 8

72%

52°

High 80°

8 AM

64°

64°

Mostly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 1% severe)

W 8

70%

54°

Mostly Cloudy

11 AM

74°

74°

Mostly Cloudy

NW 8

53%

56°

2 PM

78°

79°

Mostly Cloudy

3%

0% Thunder
( 3% severe)

NNE 7

45%

55°

5 PM

76°

78°

Partly Cloudy

SSE 7

48%

55°

8 PM

66°

66°

Partly Cloudy

0%

0% Thunder
( 0% severe)

SSE 5

68%

55°

11 PM

61°

62°

Mostly Cloudy

WNW 2

84%

56°

Wednesday
9 SEP 2026

2 AM

59°

60°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

NNE 2

87%

55°

Low 57°

5 AM

58°

58°

Mostly Cloudy

NE 3

87%

54°

High 76°

8 AM

61°

62°

Mostly Cloudy

0%

0% Thunder
( 1% severe)

E 3

84%

56°

Mostly Cloudy

11 AM

70°

70°

Mostly Cloudy

SE 8

66%

58°

2 PM

73°

73°

Mostly Cloudy

2%

0% Thunder
( 0% severe)

SSE 12

62%

59°

5 PM

73°

73°

Mostly Cloudy

SSE 12

64%

60°

8 PM

71°

71°

Mostly Cloudy

S 10

71%

61°


PORTSMOUTH, NH extended weather forecast
Thursday 10 SEP 2026	Friday 11 SEP 2026	Saturday 12 SEP 2026	Sunday 13 SEP 2026	Monday 14 SEP 2026
Low 63°	Low 58°	Low 52°	Low 56°	Low 62°
High 83°	High 74°	High 74°	High 79°	High 80°

Mostly Cloudy 67% Rain	Clear 10% Rain	Partly Cloudy 13% Rain	Partly Cloudy 19% Rain	Partly Cloudy 32% Rain

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