PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
1:55 PM EDT JUL 27, 2026
Clear 79°F
Feels Like:	79°F
Dewpoint:	52°F
Rel. Hum.:	39%
Visibility:	10 miles
Wind:	ESE at 9 mph
Pressure:	29.80 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

REST OF TODAY
Mostly sunny. Highs in the upper 70s. Light and variable winds.

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

TUESDAY
Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 70s. Southeast winds around 10 mph. Chance of rain 20 percent.

TUESDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Patchy fog after midnight. Lows in the lower 60s. Southeast winds around 10 mph. Chance of rain 40 percent.

WEDNESDAY
Patchy fog in the morning. Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Humid with highs in the lower 70s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

WEDNESDAY NIGHT
A chance of thunderstorms in the evening. Showers. Lows in the upper 50s. Chance of rain 90 percent.

THURSDAY
Showers with a chance of thunderstorms. Highs in the lower 70s. Chance of rain 80 percent.

THURSDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows around 60. Chance of rain 70 percent.

FRIDAY
Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 30 percent.

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

SATURDAY
Partly sunny. Highs in the lower 80s.

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

SUNDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. 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 AM EDT 7/27/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
27 JUL 2026

2 PM

77°

78°

Clear

0%

0% Thunder
( 3% severe)

ESE 8

43%

53°

High 78°

5 PM

75°

75°

Partly Cloudy

SE 9

45%

52°

Partly Cloudy

8 PM

68°

68°

Partly Cloudy

1%

0% Thunder
( 3% severe)

SE 6

61%

54°

11 PM

63°

64°

Partly Cloudy

SE 3

84%

58°

Tuesday
28 JUL 2026

2 AM

61°

62°

Partly Cloudy

2%

0% Thunder
( 2% severe)

CALM

97%

60°

Low 59°

5 AM

60°

61°

Partly Cloudy

CALM

100%

60°

High 81°

8 AM

67°

67°

Mostly Cloudy

6%

0% Thunder
( 8% severe)

CALM

87%

63°

Mostly Cloudy

11 AM

77°

79°

Mostly Cloudy

SE 9

67%

65°

2 PM

78°

80°

Mostly Cloudy

16%
RAIN
<.01 in

0% Thunder
( 25% severe)

SE 14

64%

65°

5 PM

76°

78°

Partly Cloudy

SE 14

66%

64°

8 PM

71°

71°

Mostly Cloudy

19%
RAIN
<.01 in

0% Thunder
( 6% severe)

SE 10

76%

63°

11 PM

66°

66°

Mostly Cloudy

SSE 8

93%

64°

Wednesday
29 JUL 2026

2 AM

64°

64°

Overcast

36%
RAIN
***

0% Thunder
( 5% severe)

SE 8

100%

64°

Low 62°

5 AM

64°

63°

Mostly Cloudy

ESE 10

100%

64°

High 73°

8 AM

66°

66°

Mostly Cloudy

64%
RAIN
***

0% Thunder
( 10% severe)

E 13

93%

64°

Mostly Cloudy

Rain Likely

11 AM

70°

70°

Mostly Cloudy

E 15

84%

65°

2 PM

70°

70°

Mostly Cloudy

83%
RAIN
***

0% Thunder
( 32% severe)

E 16

84%

65°

5 PM

69°

69°

Mostly Cloudy

E 15

87%

65°

8 PM

67°

67°

Mostly Cloudy

ENE 13

90%

64°


PORTSMOUTH, NH extended weather forecast
Thursday 30 JUL 2026	Friday 31 JUL 2026	Saturday 1 AUG 2026	Sunday 2 AUG 2026	Monday 3 AUG 2026
Low 63°	Low 62°	Low 63°	Low 63°	Low 65°
High 70°	High 75°	High 78°	High 82°	High 80°

Overcast 90% Rain	Overcast 66% Rain	Partly Cloudy 37% Rain	Mostly Cloudy 43% Rain	Mostly Cloudy 45% Rain

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