PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
2:55 AM EDT SEP 4, 2026
Overcast Mist 64°F
Feels Like:	65°F
Dewpoint:	63°F
Rel. Hum.:	97%
Visibility:	2 1/4 miles
Wind:	SSW at 5 mph
Pressure:	29.82 inches
Last 72 hours
Local Area Snow Depth
New Hampshire Current Weather
New Hampshire MOS Forecast Weather

Weather Map

(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

REST OF TONIGHT
Cloudy. Areas of fog. Near steady temperature in the mid 60s. Light and variable winds.

FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. Areas of fog in the morning. Highs in the lower 80s. Light and variable winds.

FRIDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the upper 50s. Light and variable winds.

SATURDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Northeast winds around 10 mph. Chance of rain 50 percent.

SATURDAY NIGHT
Partly cloudy with a 30 percent chance of showers. Lows in the mid 50s. Light and variable winds.

SUNDAY
Partly sunny. Highs around 70.

SUNDAY NIGHT
Mostly clear. Lows in the lower 50s.

LABOR DAY
Sunny. Highs in the mid 70s.

MONDAY NIGHT
Partly cloudy. Lows in the mid 50s.

TUESDAY
Partly sunny. Highs in the mid 70s.

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

WEDNESDAY
Partly sunny. Highs in the lower 70s.

WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A 50 percent chance of showers. Lows in the upper 50s.

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 PM EDT 9/ 3/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
4 SEP 2026

2 AM

63°

64°

Mostly Cloudy

0%

0% Thunder
( 1% severe)

CALM

100%

63°

Low 62°

5 AM

63°

64°

Mostly Cloudy

CALM

100%

63°

High 84°

8 AM

65°

65°

Mostly Cloudy

7%

0% Thunder
( 3% severe)

W 5

97%

64°

Partly Cloudy

11 AM

77°

79°

Partly Cloudy

NW 7

62%

63°

2 PM

81°

82°

Partly Cloudy

15%
RAIN
.1–.25 in

0% Thunder
( 6% severe)

NW 7

49%

60°

5 PM

79°

80°

Partly Cloudy

NNW 7

52%

60°

8 PM

71°

71°

Partly Cloudy

1%

0% Thunder
( 1% severe)

WNW 5

68%

60°

11 PM

66°

66°

Partly Cloudy

NW 6

78%

59°

Saturday
5 SEP 2026

2 AM

62°

62°

Partly Cloudy

6%

0% Thunder
( 1% severe)

NW 6

90%

59°

Low 59°

5 AM

60°

60°

Partly Cloudy

NNW 6

93%

58°

High 75°

8 AM

63°

63°

Mostly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 5% severe)

NNE 7

87%

59°

Mostly Cloudy

Chance of Rain

11 AM

70°

70°

Mostly Cloudy

NNE 9

66%

58°

2 PM

71°

71°

Mostly Cloudy

27%
RAIN
<.01 in

0% Thunder
( 12% severe)

NE 10

61%

57°

5 PM

69°

69°

Mostly Cloudy

ENE 9

63%

56°

8 PM

65°

65°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 2% severe)

NNE 7

73%

56°

11 PM

60°

59°

Mostly Cloudy

N 7

87%

56°


PORTSMOUTH, NH extended weather forecast
Sunday 6 SEP 2026	Monday 7 SEP 2026	Tuesday 8 SEP 2026	Wednesday 9 SEP 2026	Thursday 10 SEP 2026
Low 54°	Low 52°	Low 57°	Low 54°	Low 60°
High 71°	High 77°	High 72°	High 70°	High 78°

Partly Cloudy 20% Rain	Clear 2% Rain	Partly Cloudy 10% Rain	Mostly Cloudy 23% Rain	Mostly Cloudy 58% Rain

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