PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
10:55 PM EDT SEP 10, 2026
Broken Clouds 68°F
Feels Like:	68°F
Dewpoint:	54°F
Rel. Hum.:	61%
Visibility:	10 miles
Wind:	WSW at 3 mph
Pressure:	29.78 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. Lows in the upper 50s. West winds 10 to 15 mph with gusts up to 30 mph in the evening, becoming light and variable.

FRIDAY
Sunny. Highs in the mid 70s. Northwest winds around 10 mph.

FRIDAY NIGHT
Clear. Lows around 50. Light and variable winds.

SATURDAY
Mostly sunny. Highs in the lower 70s. Light and variable winds, becoming southeast around 10 mph in the afternoon.

SATURDAY NIGHT
Partly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 30 percent.

SUNDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the mid 70s.

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

MONDAY
Partly sunny. Highs in the lower 70s.

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

TUESDAY
Mostly sunny. Highs around 70.

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

WEDNESDAY
Partly sunny. Highs around 80.

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 9/10/2026

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)

Thursday
10 SEP 2026

2 PM

84°

83°

Partly Cloudy

0% Thunder
( 0% severe)

W 17

37%

55°

High 85°

5 PM

82°

81°

Partly Cloudy

W 14

37%

53°

Partly Cloudy

8 PM

72°

Partly Cloudy

0% Thunder
( 0% severe)

W 8

53%

54°

11 PM

66°

Mostly Cloudy

W 6

68%

55°

Friday
11 SEP 2026

2 AM

63°

Mostly Cloudy

0% Thunder
( 0% severe)

WNW 6

72%

54°

Low 57°

5 AM

59°

58°

Partly Cloudy

WNW 7

78%

52°

High 75°

8 AM

60°

59°

Clear

0% Thunder
( 0% severe)

WNW 8

72%

51°

Clear

11 AM

68°

Clear

WNW 10

47%

47°

2 PM

73°

Clear

0% Thunder
( 0% severe)

WNW 10

37%

45°

5 PM

73°

Clear

WNW 10

37%

45°

8 PM

63°

Clear

0% Thunder
( 0% severe)

WNW 6

58%

48°

11 PM

58°

Clear

NW 5

69%

48°

Saturday
12 SEP 2026

2 AM

54°

Clear

0% Thunder
( 0% severe)

CALM

80%

48°

Low 52°

5 AM

52°

Clear

CALM

86%

48°

High 73°

8 AM

56°

Clear

0% Thunder
( 0% severe)

CALM

77%

49°

Partly Cloudy

11 AM

68°

Clear

S 5

53%

50°

2 PM

72°

Partly Cloudy

0% Thunder
( 0% severe)

SSE 10

46%

50°

5 PM

70°

Partly Cloudy

SSE 12

51%

51°

8 PM

64°

Partly Cloudy

S 8

75%

56°


PORTSMOUTH, NH extended weather forecast
Sunday 13 SEP 2026	Monday 14 SEP 2026	Tuesday 15 SEP 2026	Wednesday 16 SEP 2026	Thursday 17 SEP 2026
Low 59°	Low 58°	Low 50°	Low 57°	Low 62°
High 72°	High 75°	High 68°	High 79°	High 81°

Overcast 59% Rain	Mostly Cloudy 23% Rain	Partly Cloudy 13% Rain	Partly Cloudy 25% Rain	Overcast 41% Rain