PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
6:55 PM EDT SEP 4, 2026
Broken Clouds 77°F
Feels Like:	79°F
Dewpoint:	59°F
Rel. Hum.:	54%
Visibility:	10 miles
Wind:	NW at 8 mph
Pressure:	29.76 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
Partly cloudy in the evening, then clearing. Lows around 60. 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 40 percent.

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

SUNDAY
Mostly sunny. Highs around 70. North winds around 10 mph in the morning, becoming light and variable.

SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s.

LABOR DAY
Sunny. Highs in the upper 70s.

MONDAY NIGHT
Mostly clear. Lows in the upper 50s.

TUESDAY
Partly sunny. Highs in the upper 70s.

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

WEDNESDAY
Mostly cloudy. Highs in the mid 70s.

WEDNESDAY NIGHT
Showers likely, mainly in the evening. Lows in the mid 60s. Chance of rain 60 percent.

THURSDAY
Partly sunny. A chance of showers in the morning. Highs around 80. Chance of rain 30 percent.

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/ 4/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
4 SEP 2026

2 PM

81°

82°

Partly Cloudy

6%

0% Thunder
( 4% severe)

S 6

49%

60°

High 82°

5 PM

80°

81°

Partly Cloudy

WSW 7

51%

60°

Partly Cloudy

8 PM

72°

72°

Partly Cloudy

1%

0% Thunder
( 0% severe)

WNW 6

64%

59°

11 PM

66°

66°

Partly Cloudy

NW 6

78%

59°

Saturday
5 SEP 2026

2 AM

62°

62°

Partly Cloudy

1%

0% Thunder
( 0% severe)

NW 6

90%

59°

Low 59°

5 AM

60°

60°

Partly Cloudy

NW 6

93%

58°

High 76°

8 AM

64°

64°

Partly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 3% severe)

N 7

81%

58°

Mostly Cloudy

Chance of Rain

11 AM

72°

72°

Mostly Cloudy

NNE 9

59%

57°

2 PM

72°

72°

Mostly Cloudy

25%
RAIN
<.01 in

0% Thunder
( 8% severe)

NE 10

59%

57°

5 PM

70°

70°

Mostly Cloudy

NE 10

59%

55°

8 PM

65°

65°

Partly Cloudy

9%

0% Thunder
( 1% severe)

NNE 6

70%

55°

11 PM

60°

60°

Partly Cloudy

NA 6

87%

56°

Sunday
6 SEP 2026

2 AM

57°

56°

Partly Cloudy

4%

0% Thunder
( 0% severe)

N 7

93%

55°

Low 54°

5 AM

55°

53°

Clear

N 8

93%

53°

High 74°

8 AM

58°

56°

Partly Cloudy

3%

0% Thunder
( 2% severe)

N 9

80%

52°

Partly Cloudy

11 AM

67°

67°

Clear

N 10

54%

50°

2 PM

70°

70°

Partly Cloudy

1%

0% Thunder
( 3% severe)

NNE 8

45%

48°

5 PM

70°

70°

Partly Cloudy

NE 6

45%

48°

8 PM

64°

65°

Partly Cloudy

NW 3

60%

50°


PORTSMOUTH, NH extended weather forecast
Monday 7 SEP 2026	Tuesday 8 SEP 2026	Wednesday 9 SEP 2026	Thursday 10 SEP 2026	Friday 11 SEP 2026
Low 52°	Low 57°	Low 54°	Low 60°	Low 51°
High 77°	High 72°	High 70°	High 78°	High 69°

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

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