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 PM EDT AUG 2, 2026
Overcast 73°F
Feels Like:	73°F
Dewpoint:	70°F
Rel. Hum.:	90%
Visibility:	10 miles
Wind:	SSE at 7 mph
Pressure:	29.89 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. Showers with a slight chance of thunderstorms after midnight. Areas of fog after midnight. Lows in the upper 60s. South winds around 10 mph with gusts up to 20 mph this evening, becoming light and variable. Chance of rain 80 percent.

MONDAY
Areas of fog in the morning. Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Humid with highs around 80. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

MONDAY NIGHT
Partly cloudy with showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the lower 60s. Southwest winds around 10 mph with gusts up to 20 mph in the evening, becoming light and variable. Chance of rain 90 percent.

TUESDAY
Mostly sunny. Highs in the mid 80s. West winds around 10 mph.

TUESDAY NIGHT
Mostly clear. Lows in the lower 60s. Light and variable winds.

WEDNESDAY
Partly sunny. Highs in the lower 80s.

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

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

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

FRIDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the upper 80s. Chance of rain 30 percent.

FRIDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows around 70. Chance of rain 30 percent.

SATURDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the mid 80s. Chance of rain 40 percent.

SATURDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Chance of rain 30 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/ 2/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
2 AUG 2026

2 PM

83°

87°

Partly Cloudy

2%

0% Thunder
( 6% severe)

SSE 13

63%

69°

High 84°

5 PM

81°

84°

Mostly Cloudy

SSE 13

67%

69°

Mostly Cloudy

Chance of Rain

8 PM

76°

78°

Mostly Cloudy

35%
RAIN
<.01 in

0% Thunder
( 12% severe)

S 10

71%

66°

11 PM

71°

71°

Mostly Cloudy

SSE 8

87%

67°

Monday
3 AUG 2026

2 AM

69°

69°

Mostly Cloudy

71%
RAIN
***

0% Thunder
( 15% severe)

SE 6

100%

69°

Low 68°

5 AM

70°

70°

Mostly Cloudy

SSE 8

100%

70°

High 82°

8 AM

72°

72°

Mostly Cloudy

89%
RAIN
***

0% Thunder
( 14% severe)

S 10

97%

71°

Mostly Cloudy

Rain Likely

11 AM

77°

78°

Overcast

S 14

85%

72°

2 PM

78°

80°

Mostly Cloudy

76%
RAIN
***

0% Thunder
( 29% severe)

S 15

85%

73°

5 PM

78°

80°

Mostly Cloudy

SSW 13

85%

73°

8 PM

76°

77°

Mostly Cloudy

26%
RAIN
.01–.1 in

0% Thunder
( 7% severe)

SW 10

85%

71°

11 PM

70°

70°

Partly Cloudy

W 9

90%

67°

Tuesday
4 AUG 2026

2 AM

67°

67°

Clear

4%

0% Thunder
( 0% severe)

W 7

90%

64°

Low 64°

5 AM

64°

64°

Clear

W 8

93%

62°

High 86°

8 AM

69°

69°

Clear

5%

0% Thunder
( 0% severe)

W 7

81%

63°

Clear

11 AM

79°

80°

Clear

W 9

54%

61°

2 PM

82°

82°

Clear

4%

0% Thunder
( 1% severe)

W 9

47%

60°

5 PM

82°

82°

Clear

W 8

47%

60°

8 PM

75°

75°

Partly Cloudy

WSW 6

62%

61°


PORTSMOUTH, NH extended weather forecast
Wednesday 5 AUG 2026	Thursday 6 AUG 2026	Friday 7 AUG 2026	Saturday 8 AUG 2026	Sunday 9 AUG 2026
Low 64°	Low 68°	Low 69°	Low 66°	Low 68°
High 79°	High 87°	High 88°	High 84°	High 85°

Mostly Cloudy 69% Rain	Overcast 55% Rain	Partly Cloudy 26% Rain	Partly Cloudy 20% Rain	Mostly Cloudy 37% Rain

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