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 13, 2026
Overcast Light Rain 52°F
Feels Like:	49°F
Dewpoint:	48°F
Rel. Hum.:	86%
Visibility:	7 miles
Wind:	E at 8 mph
Pressure:	29.98 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

REST OF TODAY
Cloudy with a 40 percent chance of showers. Highs in the lower 60s. Light and variable winds, becoming south 10 to 15 mph with gusts up to 25 mph this afternoon.

TONIGHT
Cloudy. Lows in the upper 40s. South winds 10 to 15 mph.

THURSDAY
A chance of rain in the morning, then rain with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Southeast winds around 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

THURSDAY NIGHT
Rain. Patchy fog. Lows in the mid 40s. East winds around 10 mph in the evening, becoming light and variable. Chance of rain 90 percent.

FRIDAY
Patchy fog in the morning. Rain. Highs in the mid 50s. Northeast winds around 10 mph. Chance of rain 80 percent.

FRIDAY NIGHT
Partly cloudy. Lows in the mid 40s.

SATURDAY
Mostly sunny. Highs in the mid 70s.

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

SUNDAY
Mostly sunny. Highs in the upper 70s.

SUNDAY NIGHT
Partly cloudy. Lows in the lower 50s.

MONDAY
Partly sunny. Highs around 70.

MONDAY NIGHT
Partly cloudy. Lows in the lower 50s.

TUESDAY
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 5/13/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
13 MAY 2026

2 PM

53°

51°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 1% severe)

SE 7

74%

45°

High 59°

5 PM

58°

56°

Mostly Cloudy

SSE 12

64%

46°

Mostly Cloudy

8 PM

57°

55°

Mostly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 1% severe)

S 10

59%

43°

11 PM

54°

51°

Mostly Cloudy

S 9

71%

45°

Thursday
14 MAY 2026

2 AM

52°

49°

Mostly Cloudy

18%
RAIN
<.01 in

0% Thunder
( 5% severe)

SSE 8

80%

46°

Low 50°

5 AM

51°

48°

Mostly Cloudy

SSE 7

86%

47°

High 59°

8 AM

53°

50°

Mostly Cloudy

76%
RAIN
>2 in

0% Thunder
( 8% severe)

SE 9

86%

49°

Mostly Cloudy

Rain

11 AM

56°

53°

Mostly Cloudy

ESE 12

77%

49°

2 PM

54°

50°

Mostly Cloudy

97%
RAIN
***

0% Thunder
( 21% severe)

E 13

83%

49°

5 PM

52°

48°

Mostly Cloudy

E 12

89%

49°

8 PM

50°

46°

Mostly Cloudy

95%
RAIN
***

0% Thunder
( 14% severe)

ENE 12

89%

47°

11 PM

49°

45°

Mostly Cloudy

ENE 10

96%

48°

Friday
15 MAY 2026

2 AM

48°

44°

Mostly Cloudy

92%
RAIN
***

0% Thunder
( 8% severe)

NE 9

100%

48°

Low 46°

5 AM

48°

43°

Mostly Cloudy

ENE 10

100%

48°

High 56°

8 AM

49°

45°

Overcast

78%
RAIN
***

0% Thunder
( 6% severe)

NE 10

96%

48°

Mostly Cloudy

Rain Likely

11 AM

51°

48°

Mostly Cloudy

NE 9

86%

47°

2 PM

53°

50°

Mostly Cloudy

32%
RAIN
.01–.1 in

0% Thunder
( 4% severe)

NE 8

80%

47°

5 PM

54°

53°

Mostly Cloudy

NNE 6

80%

48°

8 PM

52°

52°

Mostly Cloudy

CALM

80%

46°


PORTSMOUTH, NH extended weather forecast
Saturday 16 MAY 2026	Sunday 17 MAY 2026	Monday 18 MAY 2026	Tuesday 19 MAY 2026	Wednesday 20 MAY 2026
Low 47°	Low 55°	Low 56°	Low 50°	Low 59°
High 76°	High 80°	High 69°	High 73°	High 74°

Mostly Cloudy 18% Rain	Partly Cloudy 21% Rain	Partly Cloudy 18% Rain	Partly Cloudy 22% Rain	Overcast 44% Rain

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