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 AM EDT JUL 22, 2026
Broken Clouds 79°F
Feels Like:	82°F
Dewpoint:	70°F
Rel. Hum.:	74%
Visibility:	10 miles
Wind:	SW at 10 mph
Pressure:	29.64 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
Mostly cloudy this morning, then partly sunny with a chance of showers with a slight chance of thunderstorms this afternoon. Some thunderstorms may produce gusty winds this afternoon. Highs in the mid 80s. Southwest winds around 10 mph. Chance of rain 40 percent.

TONIGHT
Partly cloudy in the evening, then becoming mostly clear. Less humid with lows in the upper 50s. West winds around 10 mph in the evening, becoming light and variable.

THURSDAY
Mostly sunny. Highs in the upper 70s. Light and variable winds.

THURSDAY NIGHT
Mostly clear. Lows in the upper 50s. Light and variable winds.

FRIDAY
Mostly sunny. Highs in the upper 70s. Light and variable winds.

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

SATURDAY
Mostly sunny. Highs in the upper 70s.

SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.

SUNDAY
Partly sunny. Highs in the upper 70s.

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

MONDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.

MONDAY NIGHT
Partly cloudy with a 40 percent chance of showers. Lows in the lower 60s.

TUESDAY
Partly sunny with a chance of showers. Highs around 80. Chance of rain 40 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 PM EDT 7/21/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
22 JUL 2026

2 AM

69°

69°

Mostly Cloudy

27%
RAIN
.25–.5 in

0% Thunder
( 12% severe)

S 9

100%

69°

Low 68°

5 AM

69°

69°

Mostly Cloudy

S 9

100%

69°

High 86°

8 AM

71°

71°

Mostly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 8% severe)

SW 10

93%

69°

Mostly Cloudy

Chance of Rain

11 AM

79°

82°

Mostly Cloudy

SW 12

72%

69°

2 PM

83°

86°

Partly Cloudy

35%
RAIN
***

0% Thunder
( 18% severe)

SW 13

59%

67°

5 PM

82°

84°

Partly Cloudy

WSW 12

55%

64°

8 PM

75°

75°

Partly Cloudy

1%

0% Thunder
( 1% severe)

W 9

60%

60°

11 PM

68°

68°

Partly Cloudy

W 8

65%

56°

Thursday
23 JUL 2026

2 AM

63°

63°

Partly Cloudy

1%

0% Thunder
( 0% severe)

W 6

75%

55°

Low 59°

5 AM

59°

58°

Clear

W 7

83%

54°

High 80°

8 AM

64°

64°

Clear

0%

0% Thunder
( 0% severe)

WNW 8

67%

53°

Partly Cloudy

11 AM

73°

73°

Partly Cloudy

WNW 9

44%

50°

2 PM

77°

78°

Clear

0%

0% Thunder
( 1% severe)

W 8

39%

50°

5 PM

77°

78°

Partly Cloudy

S 8

37%

49°

8 PM

70°

70°

Clear

0%

0% Thunder
( 1% severe)

S 5

53%

52°

11 PM

62°

63°

Clear

CALM

72%

53°


PORTSMOUTH, NH extended weather forecast
Friday 24 JUL 2026	Saturday 25 JUL 2026	Sunday 26 JUL 2026	Monday 27 JUL 2026	Tuesday 28 JUL 2026
Low 56°	Low 57°	Low 56°	Low 62°	Low 64°
High 81°	High 78°	High 77°	High 80°	High 80°

Partly Cloudy 4% Rain	Partly Cloudy 8% Rain	Partly Cloudy 13% Rain	Overcast 36% Rain	Overcast 58% Rain

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