PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
11:55 PM EDT AUG 22, 2026
Overcast Mist 66°F
Feels Like:	66°F
Dewpoint:	63°F
Rel. Hum.:	90%
Visibility:	3 miles
Wind:	NE at 5 mph
Pressure:	29.97 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
Cloudy with a 30 percent chance of showers. Patchy fog. Lows in the lower 60s. Northeast winds around 10 mph in the evening, becoming light and variable.

SUNDAY
Patchy fog in the morning. Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Humid with highs in the mid 70s. Light and variable winds. Chance of rain 50 percent.

SUNDAY NIGHT
Partly cloudy. A chance of showers in the evening. Humid with lows in the lower 60s. Light and variable winds. Chance of rain 30 percent.

MONDAY
Mostly sunny. Highs in the lower 80s. Light and variable winds, becoming southwest around 10 mph in the afternoon.

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

TUESDAY
Mostly sunny. Highs around 80.

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

WEDNESDAY
Mostly sunny. Highs in the lower 80s.

WEDNESDAY NIGHT
Mostly clear. Lows around 60.

THURSDAY
Mostly sunny. Highs in the lower 80s.

THURSDAY NIGHT
Partly cloudy. Lows in the mid 60s.

FRIDAY
Partly sunny with a chance of showers. Highs around 80. Chance of rain 50 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 8/22/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
22 AUG 2026

2 PM

71°

71°

Mostly Cloudy

28%
RAIN
.01–.1 in

0% Thunder
( 8% severe)

NE 12

68%

60°

High 72°

5 PM

70°

70°

Mostly Cloudy

ENE 10

71%

60°

Mostly Cloudy

Chance of Rain

8 PM

66°

66°

Mostly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 1% severe)

NE 7

87%

62°

11 PM

64°

65°

Mostly Cloudy

NNE 5

100%

64°

Sunday
23 AUG 2026

2 AM

64°

66°

Mostly Cloudy

33%
RAIN
.25–.5 in

0% Thunder
( 0% severe)

NNE 2

100%

64°

Low 61°

5 AM

64°

66°

Mostly Cloudy

NE 2

100%

64°

High 78°

8 AM

65°

65°

Mostly Cloudy

65%
RAIN
***

0% Thunder
( 9% severe)

ENE 3

100%

65°

Mostly Cloudy

Rain Likely

11 AM

71°

71°

Mostly Cloudy

ENE 6

87%

67°

2 PM

75°

75°

Mostly Cloudy

25%
RAIN
.25–.5 in

0% Thunder
( 20% severe)

ENE 7

79%

68°

5 PM

76°

77°

Mostly Cloudy

ESE 8

76%

68°

8 PM

71°

71°

Mostly Cloudy

18%
RAIN
.01–.1 in

0% Thunder
( 21% severe)

SE 6

90%

68°

11 PM

68°

68°

Mostly Cloudy

S 5

100%

68°

Monday
24 AUG 2026

2 AM

67°

67°

Mostly Cloudy

7%

0% Thunder
( 5% severe)

S 5

100%

67°

Low 64°

5 AM

65°

65°

Partly Cloudy

SW 5

100%

65°

High 82°

8 AM

66°

66°

Clear

5%

0% Thunder
( 3% severe)

SW 6

97%

65°

Partly Cloudy

11 AM

76°

78°

Partly Cloudy

SSW 9

62%

62°

2 PM

80°

81°

Partly Cloudy

5%

0% Thunder
( 7% severe)

SSW 12

51%

60°

5 PM

79°

80°

Partly Cloudy

SW 10

45%

56°

8 PM

71°

71°

Clear

WSW 7

59%

56°


PORTSMOUTH, NH extended weather forecast
Tuesday 25 AUG 2026	Wednesday 26 AUG 2026	Thursday 27 AUG 2026	Friday 28 AUG 2026	Saturday 29 AUG 2026
Low 59°	Low 58°	Low 60°	Low 63°	Low 61°
High 79°	High 81°	High 80°	High 79°	High 76°

Mostly Cloudy 25% Rain	Partly Cloudy 13% Rain	Partly Cloudy 29% Rain	Overcast 62% Rain	Partly Cloudy 41% Rain

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