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 AM EDT JUN 30, 2026
Broken Clouds 81°F
Feels Like:	83°F
Dewpoint:	66°F
Rel. Hum.:	60%
Visibility:	10 miles
Wind:	SE at 7 mph
Pressure:	30.07 inches
Last 72 hours
Local Area Snow Depth
New Hampshire Current Weather
New Hampshire MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

03803 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Partly sunny. Warm with highs in the mid 80s. Light and variable winds, becoming south around 10 mph this afternoon.

TONIGHT
Partly cloudy with a chance of showers with a slight chance of thunderstorms. Humid with lows in the upper 60s. Southwest winds around 10 mph. Chance of rain 40 percent.

WEDNESDAY
Mostly sunny. Hot with highs in the mid 90s. Southwest winds around 10 mph. Heat index values up to 109 in the afternoon.

WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. Light and variable winds. Heat index values up to 106 early in the evening.

THURSDAY
Mostly sunny. Hot with highs in the upper 90s. Light and variable winds. Heat index values up to 110.

THURSDAY NIGHT
Mostly clear. Lows in the mid 70s.

FRIDAY
Mostly sunny. Hot with highs in the upper 90s.

FRIDAY NIGHT
Mostly clear. Lows in the lower 70s.

INDEPENDENCE DAY
Partly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs around 90. Chance of rain 50 percent.

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

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

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

MONDAY
Partly sunny. Highs in the lower 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 PM EDT 6/29/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
30 JUN 2026

2 AM

62°

63°

Partly Cloudy

0%

0% Thunder
( 0% severe)

CALM

87%

58°

Low 60°

5 AM

61°

62°

Mostly Cloudy

CALM

90%

58°

High 87°

8 AM

70°

70°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

CALM

73%

61°

Partly Cloudy

11 AM

82°

83°

Partly Cloudy

SSW 6

53%

63°

2 PM

85°

86°

Partly Cloudy

4%

0% Thunder
( 5% severe)

SSE 9

50%

64°

5 PM

83°

85°

Partly Cloudy

SSE 9

57%

66°

8 PM

79°

81°

Partly Cloudy

33%
RAIN
1–2 in

0% Thunder
( 18% severe)

S 7

67%

67°

11 PM

74°

74°

Mostly Cloudy

SSW 8

76%

66°

Wednesday
1 JUL 2026

2 AM

72°

72°

Mostly Cloudy

33%
RAIN
.25–.5 in

0% Thunder
( 13% severe)

SW 9

76%

64°

Low 69°

5 AM

69°

69°

Partly Cloudy

SW 9

84%

64°

High 97°

8 AM

76°

77°

Partly Cloudy

6%

0% Thunder
( 7% severe)

WSW 8

74%

67°

Partly Cloudy

11 AM

90°

96°

Partly Cloudy

WSW 8

54%

71°

2 PM

95°

105°

Partly Cloudy

18%
RAIN
<.01 in

0% Thunder
( 13% severe)

WSW 7

49%

73°

5 PM

94°

107°

Partly Cloudy

SW 8

56%

76°

8 PM

87°

98°

Partly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 11% severe)

SW 6

70%

76°

11 PM

81°

86°

Partly Cloudy

WSW 7

77%

73°


PORTSMOUTH, NH extended weather forecast
Thursday 2 JUL 2026	Friday 3 JUL 2026	Saturday 4 JUL 2026	Sunday 5 JUL 2026	Monday 6 JUL 2026
Low 72°	Low 74°	Low 73°	Low 68°	Low 64°
High 98°	High 98°	High 93°	High 81°	High 82°

Partly Cloudy 37% Rain	Partly Cloudy 7% Rain	Partly Cloudy 21% Rain	Partly Cloudy 33% Rain	Partly Cloudy 19% Rain

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