PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
12:55 AM EDT JUN 17, 2026
Clear 61°F
Feels Like:	61°F
Dewpoint:	54°F
Rel. Hum.:	78%
Visibility:	10 miles
Wind:	Calm
Pressure:	29.80 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

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

WEDNESDAY
Partly sunny. Highs in the upper 70s. Light and variable winds, becoming southeast around 10 mph with gusts up to 20 mph in the afternoon.

WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 50s. South winds around 10 mph in the evening, becoming light and variable.

THURSDAY
Patchy fog in the morning. Showers. Highs in the upper 70s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent.

THURSDAY NIGHT
Showers in the evening, then mostly clear after midnight. Lows in the lower 60s. Chance of rain 80 percent.

JUNETEENTH
Mostly sunny. Highs in the lower 80s.

FRIDAY NIGHT
Mostly clear. Lows around 60.

SATURDAY
Mostly sunny. Highs around 80.

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

SUNDAY
Partly sunny. A chance of showers in the afternoon. Highs around 80. Chance of rain 30 percent.

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

MONDAY
Partly sunny with a 40 percent chance of showers. Highs in the mid 70s.

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 6/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
17 JUN 2026

2 AM

58°

59°

Clear

0%

0% Thunder
( 0% severe)

CALM

80%

52°

Low 55°

5 AM

56°

56°

Partly Cloudy

CALM

83%

51°

High 79°

8 AM

66°

66°

Partly Cloudy

1%

0% Thunder
( 1% severe)

CALM

65%

54°

Partly Cloudy

11 AM

76°

78°

Partly Cloudy

SSE 6

45%

53°

2 PM

77°

78°

Partly Cloudy

3%

0% Thunder
( 6% severe)

SE 10

43%

53°

5 PM

74°

74°

Partly Cloudy

SSE 12

50%

54°

8 PM

69°

69°

Partly Cloudy

5%

0% Thunder
( 4% severe)

SSE 8

59%

54°

11 PM

64°

64°

Partly Cloudy

S 7

70%

54°

Thursday
18 JUN 2026

2 AM

61°

61°

Mostly Cloudy

39%
RAIN
.25–.5 in

0% Thunder
( 3% severe)

S 5

78%

54°

Low 58°

5 AM

59°

59°

Mostly Cloudy

S 5

87%

55°

High 77°

8 AM

63°

63°

Mostly Cloudy

74%
RAIN
***

0% Thunder
( 6% severe)

SE 8

84%

58°

Mostly Cloudy

Rain Likely

11 AM

67°

67°

Mostly Cloudy

SE 15

81%

61°

2 PM

70°

70°

Mostly Cloudy

70%
RAIN
***

0% Thunder
( 22% severe)

SSE 18

78%

63°

5 PM

73°

73°

Mostly Cloudy

SSE 17

84%

68°

8 PM

74°

74°

Partly Cloudy

14%
RAIN
.01–.1 in

0% Thunder
( 11% severe)

SSW 12

82%

68°

11 PM

69°

69°

Partly Cloudy

SW 9

87%

65°


PORTSMOUTH, NH extended weather forecast
Friday 19 JUN 2026	Saturday 20 JUN 2026	Sunday 21 JUN 2026	Monday 22 JUN 2026	Tuesday 23 JUN 2026
Low 61°	Low 58°	Low 56°	Low 60°	Low 58°
High 83°	High 76°	High 78°	High 71°	High 78°

Partly Cloudy 24% Rain	Partly Cloudy 20% Rain	Mostly Cloudy 14% Rain	Overcast 66% Rain	Partly Cloudy 29% Rain

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