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 9, 2026
Overcast Light Rain 70°F
Feels Like:	70°F
Dewpoint:	66°F
Rel. Hum.:	87%
Visibility:	6 miles
Wind:	S at 8 mph
Pressure:	29.90 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
Isolated thunderstorms. Rain. Lows in the upper 60s. South winds around 10 mph with gusts up to 25 mph. Chance of rain 80 percent.

THURSDAY
Partly sunny. A chance of showers in the morning. Warm with highs in the mid 80s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph in the evening, becoming light and variable.

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

FRIDAY NIGHT
Clear. Lows in the lower 50s. Light and variable winds.

SATURDAY
Mostly sunny. Highs in the lower 70s.

SATURDAY NIGHT
Partly cloudy. Lows in the upper 50s.

SUNDAY
Partly sunny with a 40 percent chance of showers. Highs in the mid 70s.

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

MONDAY
Partly sunny. Highs in the upper 70s.

MONDAY NIGHT
Partly cloudy. Lows in the upper 50s.

TUESDAY
Partly sunny. Highs in the mid 70s.

TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.

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/ 9/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
9 SEP 2026

2 PM

72°

72°

Mostly Cloudy

28%
RAIN
.1–.25 in

0% Thunder
( 2% severe)

SE 8

68%

61°

High 74°

5 PM

73°

73°

Mostly Cloudy

SE 9

71%

63°

Mostly Cloudy

Rain Likely

8 PM

72°

72°

Mostly Cloudy

74%
RAIN
***

0% Thunder
( 17% severe)

S 10

76%

64°

11 PM

69°

69°

Mostly Cloudy

SSW 12

90%

66°

Thursday
10 SEP 2026

2 AM

69°

69°

Mostly Cloudy

68%
RAIN
***

0% Thunder
( 16% severe)

SW 13

90%

66°

Low 67°

5 AM

69°

69°

Mostly Cloudy

SW 14

90%

66°

High 86°

8 AM

70°

70°

Mostly Cloudy

1%

0% Thunder
( 1% severe)

WSW 12

90%

67°

Partly Cloudy

11 AM

80°

82°

Clear

W 13

60%

65°

2 PM

84°

84°

Clear

0%

0% Thunder
( 0% severe)

W 16

43%

59°

5 PM

82°

82°

Partly Cloudy

W 13

43%

57°

8 PM

73°

73°

Partly Cloudy

3%

0% Thunder
( 0% severe)

WNW 8

55%

56°

11 PM

67°

67°

Mostly Cloudy

WNW 7

70%

57°

Friday
11 SEP 2026

2 AM

63°

63°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

WNW 6

75%

55°

Low 58°

5 AM

60°

59°

Partly Cloudy

WNW 8

75%

52°

High 75°

8 AM

60°

59°

Clear

0%

0% Thunder
( 0% severe)

WNW 9

72%

51°

Clear

11 AM

68°

68°

Clear

WNW 12

49%

48°

2 PM

73°

73°

Clear

0%

0% Thunder
( 0% severe)

WNW 12

37%

45°

5 PM

73°

73°

Clear

WNW 10

37%

45°

8 PM

64°

64°

Clear

WNW 6

56%

48°


PORTSMOUTH, NH extended weather forecast
Saturday 12 SEP 2026	Sunday 13 SEP 2026	Monday 14 SEP 2026	Tuesday 15 SEP 2026	Wednesday 16 SEP 2026
Low 50°	Low 54°	Low 61°	Low 62°	Low 64°
High 75°	High 79°	High 81°	High 80°	High 80°

Clear 3% Rain	Partly Cloudy 14% Rain	Overcast 35% Rain	Overcast 34% Rain	Overcast 45% Rain

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