PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
5:55 PM EDT AUG 4, 2026
Few Clouds 86°F
Feels Like:	86°F
Dewpoint:	61°F
Rel. Hum.:	43%
Visibility:	10 miles
Wind:	WSW at 7 mph
Pressure:	30.03 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 lower 60s. Light and variable winds.

WEDNESDAY
Partly sunny. Highs in the mid 80s. Light and variable winds.

WEDNESDAY NIGHT
Partly cloudy in the evening, then clearing. Humid with lows in the mid 60s. Light and variable winds.

THURSDAY
Mostly sunny. Warm with highs in the mid 80s. Light and variable winds. Heat index values in the mid 90s in the afternoon.

THURSDAY NIGHT
Partly cloudy. Lows around 70.

FRIDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the upper 80s. Chance of rain 30 percent.

FRIDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Chance of rain 30 percent.

SATURDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the upper 80s. Chance of rain 50 percent.

SATURDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Chance of rain 40 percent.

SUNDAY
Mostly sunny. Warm with highs in the upper 80s.

SUNDAY NIGHT
Mostly clear. Lows in the upper 60s.

MONDAY
Mostly sunny. Warm with highs in the upper 80s.

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 8/ 4/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
4 AUG 2026

2 PM

84°

83°

Clear

0%

0% Thunder
( 1% severe)

WSW 9

37%

55°

High 86°

5 PM

85°

84°

Clear

SW 8

36%

55°

Clear

8 PM

75°

75°

Clear

0%

0% Thunder
( 1% severe)

S 6

60%

60°

11 PM

68°

68°

Clear

SW 5

76%

60°

Wednesday
5 AUG 2026

2 AM

64°

65°

Clear

0%

0% Thunder
( 0% severe)

WSW 3

87%

60°

Low 62°

5 AM

62°

63°

Partly Cloudy

WSW 2

90%

59°

High 87°

8 AM

68°

68°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

CALM

78%

61°

Mostly Cloudy

11 AM

81°

82°

Mostly Cloudy

SSW 3

53%

62°

2 PM

84°

84°

Mostly Cloudy

0%

0% Thunder
( 1% severe)

SSE 7

44%

60°

5 PM

83°

84°

Mostly Cloudy

S 8

49%

62°

8 PM

76°

78°

Partly Cloudy

1%

0% Thunder
( 3% severe)

S 7

64%

63°

11 PM

72°

72°

Partly Cloudy

SW 6

76%

64°

Thursday
6 AUG 2026

2 AM

70°

70°

Partly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 3% severe)

SW 5

84%

65°

Low 68°

5 AM

68°

68°

Partly Cloudy

SW 5

93%

66°

High 89°

8 AM

73°

73°

Partly Cloudy

3%

0% Thunder
( 7% severe)

SW 5

81%

67°

Partly Cloudy

Chance of Rain

11 AM

83°

87°

Partly Cloudy

SSW 5

63%

69°

2 PM

86°

91°

Partly Cloudy

35%
RAIN
<.01 in

0% Thunder
( 21% severe)

S 8

59%

70°

5 PM

84°

90°

Partly Cloudy

S 8

70%

73°

8 PM

79°

82°

Partly Cloudy

S 5

79%

72°


PORTSMOUTH, NH extended weather forecast
Friday 7 AUG 2026	Saturday 8 AUG 2026	Sunday 9 AUG 2026	Monday 10 AUG 2026	Tuesday 11 AUG 2026
Low 71°	Low 70°	Low 65°	Low 68°	Low 65°
High 90°	High 86°	High 87°	High 88°	High 82°

Partly Cloudy 34% Rain	Mostly Cloudy 63% Rain	Partly Cloudy 32% Rain	Partly Cloudy 21% Rain	Partly Cloudy 26% Rain

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