PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
5:55 AM EDT OCT 18, 2026
Clear 30°F
Feels Like:	30°F
Dewpoint:	27°F
Rel. Hum.:	88%
Visibility:	10 miles
Wind:	Calm
Pressure:	30.50 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
Sunny. Highs in the mid 50s. Light and variable winds.

TONIGHT
Mostly clear. Lows in the mid 30s. Light and variable winds.

MONDAY
Partly sunny. Highs in the mid 50s. Light and variable winds.

MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Patchy fog in the evening. Lows in the upper 30s. Light and variable winds.

TUESDAY
Partly sunny. Highs around 60. Northeast winds around 10 mph with gusts up to 25 mph.

TUESDAY NIGHT
Partly cloudy. Lows in the upper 30s.

WEDNESDAY
Partly sunny. Highs in the mid 50s.

WEDNESDAY NIGHT
Partly cloudy. Lows around 40.

THURSDAY
Partly sunny. Highs in the upper 50s.

THURSDAY NIGHT
Mostly clear. Lows in the lower 40s.

FRIDAY
Mostly sunny. Highs in the mid 50s.

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

SATURDAY
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 10/17/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
EDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Sunday
18 OCT 2026

2 AM

34°

31°

Clear

0% Thunder
( 0% severe)

WNW 3

68%

25°

Low 32°

5 AM

33°

30°

Clear

CALM

71%

25°

High 55°

8 AM

34°

32°

Clear

0% Thunder
( 0% severe)

CALM

75%

27°

Clear

11 AM

48°

47°

Clear

CALM

40%

25°

2 PM

53°

51°

Clear

0% Thunder
( 0% severe)

SSW 6

35%

26°

5 PM

51°

49°

Clear

S 6

41%

28°

8 PM

44°

41°

Clear

0% Thunder
( 0% severe)

S 6

68%

34°

11 PM

41°

39°

Clear

SSW 3

86%

37°

Monday
19 OCT 2026

2 AM

38°

36°

Clear

0% Thunder
( 0% severe)

CALM

92%

36°

Low 36°

5 AM

36°

34°

Partly Cloudy

CALM

92%

34°

High 58°

8 AM

37°

35°

Partly Cloudy

0% Thunder
( 0% severe)

CALM

89%

34°

Partly Cloudy

11 AM

53°

Partly Cloudy

CALM

52%

36°

2 PM

56°

55°

Partly Cloudy

0% Thunder
( 0% severe)

ESE 6

47%

36°

5 PM

53°

51°

Partly Cloudy

ESE 6

54%

37°

8 PM

45°

44°

Partly Cloudy

0% Thunder
( 0% severe)

CALM

89%

42°

11 PM

42°

40°

Mostly Cloudy

NNE 3

100%

42°


PORTSMOUTH, NH extended weather forecast
Tuesday 20 OCT 2026	Wednesday 21 OCT 2026	Thursday 22 OCT 2026	Friday 23 OCT 2026	Saturday 24 OCT 2026
Low 40°	Low 42°	Low 39°	Low 40°	Low 35°
High 63°	High 55°	High 58°	High 53°	High 55°

Clear 3% Rain	Partly Cloudy 8% Rain	Partly Cloudy 16% Rain	Clear 11% Rain	Clear 12% Rain

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PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

PORTSMOUTH, NH Current Weather

PORTSMOUTH, NH 03803 Weather Forecast

PORTSMOUTH, NH 3 hourly weather forecast

PORTSMOUTH, NH extended weather forecast

PORTSMOUTH, NH
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PORTSMOUTH, NH 03803
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