PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
2:55 PM EDT OCT 3, 2026
Few Clouds 64°F
Feels Like:	63°F
Dewpoint:	52°F
Rel. Hum.:	65%
Visibility:	10 miles
Wind:	E at 12 mph
Pressure:	30.25 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. Patchy fog after midnight. Lows in the mid 40s. Light and variable winds.

SUNDAY
Patchy fog in the morning. Partly sunny. Highs in the lower 60s. Light and variable winds, becoming east around 10 mph in the afternoon.

SUNDAY NIGHT
Mostly cloudy with a 40 percent chance of showers. Lows in the upper 40s. Light and variable winds.

MONDAY
Partly sunny. Highs in the upper 60s. West winds 10 to 15 mph. Gusts up to 30 mph in the afternoon.

MONDAY NIGHT
Clear. Lows in the lower 40s. Northwest winds around 10 mph with gusts up to 25 mph.

TUESDAY
Sunny. Highs in the upper 50s.

TUESDAY NIGHT
Clear. Lows in the upper 30s.

WEDNESDAY
Sunny. Highs in the lower 60s.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 40s.

THURSDAY
Mostly sunny. Highs in the upper 60s.

THURSDAY NIGHT
Mostly clear. Lows in the mid 40s.

FRIDAY
Mostly sunny. Highs in the upper 60s.

FRIDAY NIGHT
Mostly clear. Lows in the upper 40s.

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 9/30/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
30 SEP 2026

2 PM

68°

68°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

S 6

68%

57°

High 69°

5 PM

66°

66°

Mostly Cloudy

SSE 7

73%

57°

Mostly Cloudy

8 PM

59°

58°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

S 6

93%

57°

11 PM

57°

57°

Mostly Cloudy

SSW 3

100%

57°

Thursday
1 OCT 2026

2 AM

56°

56°

Mostly Cloudy

2%

0% Thunder
( 0% severe)

SW 3

100%

56°

Low 55°

5 AM

55°

55°

Mostly Cloudy

SW 3

100%

55°

High 79°

8 AM

57°

57°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

WSW 5

96%

56°

Mostly Cloudy

11 AM

71°

71°

Mostly Cloudy

WSW 6

68%

60°

2 PM

77°

79°

Mostly Cloudy

6%

0% Thunder
( 1% severe)

SSW 9

56%

60°

5 PM

76°

78°

Partly Cloudy

SW 9

58%

60°

8 PM

69°

69°

Mostly Cloudy

0%

0% Thunder
( 1% severe)

SW 8

73%

60°

11 PM

67°

67°

Partly Cloudy

SW 8

81%

61°

Friday
2 OCT 2026

2 AM

66°

66°

Partly Cloudy

1%

0% Thunder
( 1% severe)

SW 7

81%

60°

Low 65°

5 AM

66°

66°

Partly Cloudy

SW 8

81%

60°

High 80°

8 AM

66°

66°

Partly Cloudy

4%

0% Thunder
( 1% severe)

SW 8

81%

60°

Mostly Cloudy

Chance of Rain

11 AM

74°

74°

Mostly Cloudy

SW 9

66%

62°

2 PM

79°

80°

Mostly Cloudy

40%
RAIN
.25–.5 in

0% Thunder
( 5% severe)

WSW 10

56%

62°

5 PM

76°

78°

Mostly Cloudy

W 10

64%

63°

8 PM

69°

69°

Mostly Cloudy

W 8

81%

63°


PORTSMOUTH, NH extended weather forecast
Saturday 3 OCT 2026	Sunday 4 OCT 2026	Monday 5 OCT 2026	Tuesday 6 OCT 2026	Wednesday 7 OCT 2026
Low 55°	Low 46°	Low 48°	Low 42°	Low 40°
High 65°	High 60°	High 67°	High 56°	High 59°

Partly Cloudy 35% Rain	Mostly Cloudy 20% Rain	Overcast 45% Rain	Partly Cloudy 31% Rain	Partly Cloudy 20% Rain

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