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 JUN 30, 2025
Few Clouds 77°F
Feels Like:	79°F
Dewpoint:	63°F
Rel. Hum.:	62%
Visibility:	10 miles
Wind:	SSE at 14 mph
Pressure:	29.91 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 2025 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly clear this evening, then partly cloudy with isolated showers after midnight. Patchy fog this evening. Areas of fog after midnight. Lows in the mid 60s. Southeast winds around 10 mph this evening, becoming light and variable. Chance of rain 20 percent.

TUESDAY
Areas of fog in the morning. Mostly cloudy with scattered showers with isolated thunderstorms in the morning, then partly sunny with showers likely with isolated thunderstorms in the afternoon. Some thunderstorms may produce gusty winds and heavy rainfall, then some thunderstorms may be severe with gusty winds and heavy rainfall in the afternoon. Warm with highs in the mid 80s. South winds around 10 mph. Chance of rain 60 percent. Heat index values in the lower 90s in the afternoon.

TUESDAY NIGHT
Partly cloudy with scattered showers and thunderstorms in the evening, then mostly cloudy with isolated showers after midnight. Some thunderstorms may produce gusty winds and heavy rainfall in the evening. Humid with lows in the upper 60s. Southwest winds around 10 mph. Chance of rain 40 percent.

WEDNESDAY
Mostly cloudy in the morning, then becoming partly sunny. Warm with highs in the mid 80s. Light and variable winds.

WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s. Light and variable winds.

THURSDAY
Mostly sunny. A chance of showers in the afternoon. Warm with highs in the mid 80s. Chance of rain 30 percent.

THURSDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly clear after midnight. Lows in the lower 60s. Chance of rain 30 percent.

INDEPENDENCE DAY
Mostly sunny. Highs in the upper 70s.

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

SATURDAY
Mostly sunny. Highs in the lower 80s.

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

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

SUNDAY NIGHT
Partly cloudy with a 30 percent chance of showers. Lows in the upper 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 6/30/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
30 JUN 2025

2 PM

81°

82°

Clear

0%

0% Thunder
( 1% severe)

SE 7

53%

62°

High 82°

5 PM

78°

80°

Partly Cloudy

SSE 9

58%

62°

Partly Cloudy

8 PM

72°

72°

Partly Cloudy

2%

0% Thunder
( 3% severe)

SE 7

76%

64°

11 PM

69°

69°

Partly Cloudy

SSE 5

87%

65°

Tuesday
1 JUL 2025

2 AM

68°

68°

Partly Cloudy

22%
RAIN
.1–.25 in

0% Thunder
( 7% severe)

S 5

90%

65°

Low 67°

5 AM

67°

67°

Mostly Cloudy

S 6

97%

66°

High 86°

8 AM

72°

72°

Mostly Cloudy

53%
RAIN
.25–.5 in

0% Thunder
( 17% severe)

S 7

90%

69°

Mostly Cloudy

Rain Likely

11 AM

79°

82°

Mostly Cloudy

SSW 9

77%

71°

2 PM

83°

88°

Mostly Cloudy

51%
RAIN
***

0% Thunder
( 28% severe)

SSW 12

70%

72°

5 PM

83°

88°

Partly Cloudy

SW 12

67%

71°

8 PM

79°

82°

Mostly Cloudy

16%
RAIN
.1–.25 in

0% Thunder
( 13% severe)

WSW 9

77%

71°

11 PM

76°

77°

Mostly Cloudy

WSW 8

82%

70°

Wednesday
2 JUL 2025

2 AM

73°

73°

Mostly Cloudy

5%

0% Thunder
( 2% severe)

WSW 7

84%

68°

Low 70°

5 AM

71°

71°

Mostly Cloudy

WSW 7

84%

66°

High 88°

8 AM

74°

74°

Mostly Cloudy

2%

0% Thunder
( 1% severe)

W 7

79%

67°

Mostly Cloudy

11 AM

82°

84°

Mostly Cloudy

W 8

56%

65°

2 PM

87°

88°

Mostly Cloudy

1%

0% Thunder
( 8% severe)

WSW 9

45%

63°

5 PM

86°

87°

Partly Cloudy

WSW 9

45%

62°

8 PM

79°

81°

Partly Cloudy

WSW 6

60%

64°


PORTSMOUTH, NH extended weather forecast
Thursday 3 JUL 2025	Friday 4 JUL 2025	Saturday 5 JUL 2025	Sunday 6 JUL 2025	Monday 7 JUL 2025
Low 65°	Low 59°	Low 57°	Low 64°	Low 69°
High 87°	High 79°	High 78°	High 87°	High 87°

Partly Cloudy 69% Rain	Partly Cloudy 23% Rain	Partly Cloudy 7% Rain	Partly Cloudy 17% Rain	Partly Cloudy 28% Rain

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