PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
9:55 PM EDT SEP 8, 2026
Broken Clouds 63°F
Feels Like:	64°F
Dewpoint:	55°F
Rel. Hum.:	75%
Visibility:	10 miles
Wind:	W at 3 mph
Pressure:	30.22 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 this evening, then mostly cloudy with a chance of sprinkles after midnight. Lows in the upper 50s. Light and variable winds.

WEDNESDAY
Cloudy. A chance of sprinkles in the morning. Highs in the mid 70s. Light and variable winds, becoming southeast around 10 mph in the afternoon.

WEDNESDAY NIGHT
Cloudy. Showers likely after midnight. Lows in the upper 60s. South winds around 10 mph with gusts up to 25 mph. Chance of rain 70 percent.

THURSDAY
Partly sunny. Warm with highs in the mid 80s. West winds around 10 mph with gusts up to 25 mph.

THURSDAY NIGHT
Partly cloudy. Lows around 60. West winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable.

FRIDAY
Mostly sunny. Highs in the lower 70s.

FRIDAY NIGHT
Clear. Lows in the lower 50s.

SATURDAY
Mostly sunny. Highs in the lower 70s.

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

SUNDAY
Partly sunny. Highs in the upper 70s.

SUNDAY NIGHT
Partly cloudy. Lows in the lower 60s.

MONDAY
Partly sunny. Highs in the upper 70s.

MONDAY NIGHT
Partly cloudy. 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 AM EDT 9/ 8/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
8 SEP 2026

2 PM

77°

79°

Partly Cloudy

4%

0% Thunder
( 1% severe)

NW 6

52%

58°

High 78°

5 PM

74°

74°

Partly Cloudy

SE 7

59%

59°

Partly Cloudy

8 PM

66°

66°

Partly Cloudy

3%

0% Thunder
( 0% severe)

S 5

78%

59°

11 PM

62°

63°

Mostly Cloudy

CALM

90%

59°

Wednesday
9 SEP 2026

2 AM

60°

61°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

CALM

93%

58°

Low 59°

5 AM

59°

60°

Mostly Cloudy

NE 3

93%

57°

High 78°

8 AM

62°

62°

Mostly Cloudy

8%

0% Thunder
( 1% severe)

E 5

90%

59°

Mostly Cloudy

11 AM

70°

70°

Mostly Cloudy

SSE 8

73%

61°

2 PM

73°

73°

Mostly Cloudy

9%

0% Thunder
( 2% severe)

SE 10

68%

62°

5 PM

73°

73°

Mostly Cloudy

SSE 10

71%

63°

8 PM

72°

72°

Mostly Cloudy

9%

0% Thunder
( 8% severe)

S 10

73%

63°

11 PM

71°

71°

Mostly Cloudy

SSW 12

76%

63°

Thursday
10 SEP 2026

2 AM

70°

70°

Mostly Cloudy

44%
RAIN
***

0% Thunder
( 12% severe)

SSW 13

81%

64°

Low 68°

5 AM

70°

70°

Mostly Cloudy

SW 15

81%

64°

High 86°

8 AM

70°

70°

Partly Cloudy

4%

0% Thunder
( 1% severe)

SW 13

84%

65°

Partly Cloudy

11 AM

80°

82°

Partly Cloudy

WSW 14

62%

66°

2 PM

85°

86°

Partly Cloudy

4%

0% Thunder
( 1% severe)

W 15

46%

62°

5 PM

82°

82°

Partly Cloudy

W 13

47%

60°

8 PM

74°

74°

Mostly Cloudy

W 9

57%

58°


PORTSMOUTH, NH extended weather forecast
Friday 11 SEP 2026	Saturday 12 SEP 2026	Sunday 13 SEP 2026	Monday 14 SEP 2026	Tuesday 15 SEP 2026
Low 57°	Low 49°	Low 54°	Low 59°	Low 57°
High 71°	High 71°	High 75°	High 76°	High 71°

Clear 7% Rain	Partly Cloudy 9% Rain	Mostly Cloudy 29% Rain	Overcast 38% Rain	Mostly Cloudy 40% Rain

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