PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
6:55 AM EDT OCT 21, 2026
Scattered Clouds 45°F
Feels Like:	39°F
Dewpoint:	34°F
Rel. Hum.:	65%
Visibility:	10 miles
Wind:	NNE at 13 mph
Pressure:	30.31 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 2026 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Partly sunny. Highs in the lower 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

TONIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 40. North winds around 10 mph.

THURSDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 60s. North winds around 10 mph with gusts up to 25 mph.

THURSDAY NIGHT
Mostly clear. Lows in the mid 30s. North winds around 10 mph with gusts up to 25 mph.

FRIDAY
Sunny. Highs in the lower 50s. North winds around 10 mph with gusts up to 25 mph.

FRIDAY NIGHT
Mostly clear. Lows around 30.

SATURDAY
Mostly sunny. Highs in the mid 50s.

SATURDAY NIGHT
Clear. Lows in the lower 30s.

SUNDAY
Sunny. Highs in the lower 60s.

SUNDAY NIGHT
Mostly clear. Lows in the upper 30s.

MONDAY
Mostly sunny. Highs in the mid 60s.

MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s.

TUESDAY
Partly sunny. Highs in the mid 50s.

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 10/20/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
21 OCT 2026

2 AM

41°

35°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NNE 10

79%

35°

Low 36°

5 AM

39°

32°

Partly Cloudy

NNE 12

82%

34°

High 54°

8 AM

37°

30°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NNE 10

89%

34°

Mostly Cloudy

11 AM

48°

43°

Partly Cloudy

NNE 12

60%

35°

2 PM

52°

48°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

NE 13

52%

35°

5 PM

51°

47°

Mostly Cloudy

NE 10

56%

36°

8 PM

44°

40°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

NNE 7

82%

39°

11 PM

42°

37°

Mostly Cloudy

N 8

86%

38°

Thursday
22 OCT 2026

2 AM

40°

35°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

N 8

85%

36°

Low 39°

5 AM

40°

34°

Overcast

NA 9

82%

35°

High 63°

8 AM

40°

34°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

N 9

82%

35°

Mostly Cloudy

11 AM

53°

50°

Mostly Cloudy

NA 10

48%

34°

2 PM

61°

59°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NA 12

36%

34°

5 PM

58°

56°

Partly Cloudy

N 12

45%

37°

8 PM

49°

44°

Clear

0%

0% Thunder
( 0% severe)

N 13

56%

34°

11 PM

43°

37°

Clear

N 12

65%

32°


PORTSMOUTH, NH extended weather forecast
BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE
Low 37°	Low 39°	Low 33°	Low 36°	Low 42°
High 61°	High 54°	High 56°	High 61°	High 64°

Clear 3% Rain	Clear	Clear 4% Rain	Clear 11% Rain	Partly Cloudy 18% Rain

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