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 MAY 31, 2026
Overcast 70°F
Feels Like:	70°F
Dewpoint:	43°F
Rel. Hum.:	38%
Visibility:	10 miles
Wind:	WNW at 16 mph, gusts to 21
Pressure:	29.84 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

TODAY
Partly sunny this morning, then mostly cloudy with numerous showers with isolated thunderstorms this afternoon. Highs in the upper 60s. Light and variable winds. Chance of rain 70 percent.

TONIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Isolated thunderstorms in the evening. Scattered showers. Lows in the mid 40s. Light and variable winds. Chance of rain 50 percent.

MONDAY
Cloudy with scattered showers in the morning, then partly sunny in the afternoon. Highs around 60. Northeast winds around 10 mph, becoming east in the afternoon. Chance of rain 40 percent.

MONDAY NIGHT
Mostly clear. Lows in the mid 40s. Light and variable winds.

TUESDAY
Partly sunny. Scattered showers in the afternoon. Highs in the upper 60s. Light and variable winds. Chance of rain 30 percent.

TUESDAY NIGHT
Partly cloudy. Lows in the upper 40s.

WEDNESDAY
Partly sunny. Highs around 70.

WEDNESDAY NIGHT
Mostly clear. Lows in the lower 50s.

THURSDAY
Mostly sunny. Highs in the upper 70s.

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

FRIDAY
Partly sunny. Highs in the mid 80s.

FRIDAY NIGHT
Partly cloudy. Lows around 60.

SATURDAY
Partly sunny. Highs around 80.

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 5/31/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
31 MAY 2026

2 PM

64°

64°

Mostly Cloudy

68%
RAIN
1–2 in

0% Thunder
( 21% severe)

WNW 7

54%

47°

High 65°

5 PM

60°

59°

Mostly Cloudy

S 7

69%

50°

Mostly Cloudy

Rain Likely

8 PM

56°

56°

Mostly Cloudy

45%
RAIN
.01–.1 in

0% Thunder
( 5% severe)

NNW 3

80%

50°

11 PM

51°

51°

Mostly Cloudy

NNW 1

93%

49°

Monday
1 JUN 2026

2 AM

49°

48°

Mostly Cloudy

48%
RAIN
***

0% Thunder
( 1% severe)

N 3

93%

47°

Low 46°

5 AM

48°

45°

Mostly Cloudy

NE 7

96%

47°

High 61°

8 AM

50°

46°

Mostly Cloudy

22%
RAIN
.1–.25 in

0% Thunder
( 2% severe)

NE 9

86%

46°

Decreasing Clouds

Chance of Rain

11 AM

55°

53°

Partly Cloudy

NE 8

66%

44°

2 PM

58°

57°

Partly Cloudy

2%

0% Thunder
( 3% severe)

E 7

55%

42°

5 PM

59°

58°

Clear

ESE 7

53%

42°

8 PM

53°

53°

Clear

0%

0% Thunder
( 1% severe)

SSE 3

69%

43°

11 PM

48°

47°

Clear

SSW 3

80%

42°

Tuesday
2 JUN 2026

2 AM

46°

45°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 3

83%

41°

Low 45°

5 AM

45°

44°

Partly Cloudy

W 3

86%

41°

High 71°

8 AM

55°

55°

Partly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 2% severe)

CALM

72%

46°

Partly Cloudy

Chance of Rain

11 AM

67°

67°

Partly Cloudy

WSW 3

47%

46°

2 PM

67°

67°

Partly Cloudy

25%
RAIN
.01–.1 in

0% Thunder
( 5% severe)

SSE 7

49%

47°

5 PM

65°

65°

Partly Cloudy

SSE 7

54%

48°

8 PM

59°

59°

Mostly Cloudy

SSW 5

67%

48°


PORTSMOUTH, NH extended weather forecast
Wednesday 3 JUN 2026	Thursday 4 JUN 2026	Friday 5 JUN 2026	Saturday 6 JUN 2026	Sunday 7 JUN 2026
Low 50°	Low 53°	Low 53°	Low 57°	Low 54°
High 76°	High 74°	High 78°	High 75°	High 73°

Partly Cloudy 6% Rain	Partly Cloudy 14% Rain	Partly Cloudy 20% Rain	Partly Cloudy 20% Rain	Mostly Cloudy 23% Rain

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