PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
11:55 AM EDT SEP 17, 2025
Broken Clouds 70°F
Feels Like:	70°F
Dewpoint:	52°F
Rel. Hum.:	53%
Visibility:	10 miles
Wind:	ESE at 7 mph
Pressure:	30.19 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
Patchy fog this morning. Partly sunny. Highs in the lower 70s. Light and variable winds.

TONIGHT
Partly cloudy in the evening, then cloudy with scattered showers with isolated thunderstorms after midnight. Lows in the mid 50s. Light and variable winds. Chance of rain 50 percent.

THURSDAY
Mostly cloudy with scattered showers in the morning, then partly sunny with isolated showers in the afternoon. Highs in the mid 70s. Light and variable winds. Chance of rain 40 percent.

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

FRIDAY
Mostly sunny. Highs in the mid 70s. Northwest winds around 10 mph.

FRIDAY NIGHT
Clear. Lows in the mid 40s.

SATURDAY
Sunny. Highs in the upper 60s.

SATURDAY NIGHT
Clear. Lows in the lower 40s.

SUNDAY
Mostly sunny. Highs in the lower 70s.

SUNDAY NIGHT
Mostly clear. Lows in the upper 40s.

MONDAY
Mostly sunny. Highs in the mid 70s.

MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 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 PM EDT 9/16/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
17 SEP 2025

2 AM

55°

55°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

CALM

93%

53°

Low 52°

5 AM

53°

53°

Mostly Cloudy

CALM

93%

51°

High 73°

8 AM

55°

55°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

NNW 1

93%

53°

Mostly Cloudy

11 AM

68°

68°

Mostly Cloudy

SE 2

61%

54°

2 PM

71°

71°

Partly Cloudy

5%

0% Thunder
( 2% severe)

SE 7

53%

53°

5 PM

68°

68°

Mostly Cloudy

SE 7

61%

54°

8 PM

61°

62°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 3% severe)

SSE 3

87%

57°

11 PM

59°

60°

Mostly Cloudy

SSW 1

93%

57°

Thursday
18 SEP 2025

2 AM

58°

59°

Mostly Cloudy

35%
RAIN
<.01 in

0% Thunder
( 9% severe)

CALM

96%

57°

Low 55°

5 AM

57°

58°

Mostly Cloudy

WNW 1

100%

57°

High 78°

8 AM

59°

60°

Mostly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 3% severe)

WSW 1

100%

59°

Mostly Cloudy

11 AM

71°

71°

Mostly Cloudy

SW 2

66%

59°

2 PM

77°

79°

Partly Cloudy

4%

0% Thunder
( 4% severe)

S 5

52%

58°

5 PM

73°

73°

Partly Cloudy

S 7

62%

59°

8 PM

66°

66°

Partly Cloudy

1%

0% Thunder
( 2% severe)

S 6

81%

60°

11 PM

63°

64°

Partly Cloudy

SW 5

90%

60°


PORTSMOUTH, NH extended weather forecast
Friday 19 SEP 2025	Saturday 20 SEP 2025	Sunday 21 SEP 2025	Monday 22 SEP 2025	Tuesday 23 SEP 2025
Low 57°	Low 47°	Low 45°	Low 48°	Low 54°
High 75°	High 66°	High 66°	High 68°	High 76°

Partly Cloudy 6% Rain	Clear 2% Rain	Partly Cloudy 10% Rain	Partly Cloudy 26% Rain	Partly Cloudy 24% Rain

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