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 6, 2026
Few Clouds 63°F
Feels Like:	63°F
Dewpoint:	48°F
Rel. Hum.:	58%
Visibility:	10 miles
Wind:	NW at 8 mph
Pressure:	29.96 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. Lows in the mid 50s. Light and variable winds.

LABOR DAY
Sunny. Highs in the upper 70s. Light and variable winds.

MONDAY NIGHT
Mostly clear. Lows in the upper 50s. Light and variable winds.

TUESDAY
Mostly sunny. Highs in the upper 70s. Northwest winds around 10 mph.

TUESDAY NIGHT
Partly cloudy. Lows in the upper 50s.

WEDNESDAY
Mostly cloudy. Highs in the lower 70s.

WEDNESDAY NIGHT
A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 60 percent.

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

THURSDAY NIGHT
Partly cloudy. Lows in the upper 50s.

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.

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/ 6/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
EDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Sunday
6 SEP 2026

2 PM

68°

Partly Cloudy

0% Thunder
( 4% severe)

NNW 6

51%

49°

High 70°

5 PM

69°

Partly Cloudy

N 6

49%

49°

Partly Cloudy

8 PM

63°

64°

Partly Cloudy

0% Thunder
( 0% severe)

W 3

67%

52°

11 PM

58°

Clear

WNW 5

77%

51°

Monday
7 SEP 2026

2 AM

56°

55°

Partly Cloudy

0% Thunder
( 0% severe)

WNW 6

80%

50°

Low 54°

5 AM

54°

52°

Partly Cloudy

WNW 7

86%

50°

High 80°

8 AM

59°

58°

Clear

0% Thunder
( 0% severe)

NW 8

75%

51°

Clear

11 AM

72°

Clear

NNW 8

44%

49°

2 PM

78°

Clear

0% Thunder
( 1% severe)

NW 8

35%

48°

5 PM

79°

Clear

NW 9

36%

50°

8 PM

69°

Clear

0% Thunder
( 0% severe)

NW 7

53%

51°

11 PM

62°

Clear

WNW 6

70%

52°

Tuesday
8 SEP 2026

2 AM

59°

58°

Partly Cloudy

0% Thunder
( 1% severe)

W 6

78%

52°

Low 58°

5 AM

59°

58°

Partly Cloudy

W 8

75%

51°

High 80°

8 AM

63°

Partly Cloudy

0% Thunder
( 1% severe)

WNW 8

67%

52°

Partly Cloudy

11 AM

75°

Partly Cloudy

NW 9

48%

54°

2 PM

79°

Partly Cloudy

0% Thunder
( 0% severe)

NW 8

39%

52°

5 PM

77°

78°

Partly Cloudy

NW 8

42%

52°

8 PM

67°

Partly Cloudy

W 5

61%

53°


PORTSMOUTH, NH extended weather forecast
Wednesday 9 SEP 2026	Thursday 10 SEP 2026	Friday 11 SEP 2026	Saturday 12 SEP 2026	Sunday 13 SEP 2026
Low 57°	Low 63°	Low 61°	Low 54°	Low 60°
High 71°	High 85°	High 76°	High 76°	High 80°

Overcast 34% Rain	Overcast 61% Rain	Partly Cloudy 23% Rain	Partly Cloudy 19% Rain	Partly Cloudy 36% Rain