PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
3:55 AM EDT OCT 17, 2026
Overcast 50°F
Feels Like:	45°F
Dewpoint:	37°F
Rel. Hum.:	61%
Visibility:	10 miles
Wind:	WNW at 14 mph, gusts to 21
Pressure:	29.83 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
Cloudy with a slight chance of showers this morning, then partly sunny this afternoon. Highs around 50. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 20 percent.

TONIGHT
Clear. Lows in the lower 30s. Northwest winds around 10 mph with gusts up to 25 mph in the evening, becoming light and variable.

SUNDAY
Sunny. Highs in the lower 50s. Light and variable winds.

SUNDAY NIGHT
Clear. Lows in the mid 30s. Light and variable winds.

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

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

TUESDAY
Partly sunny. Highs around 60.

TUESDAY NIGHT
Partly cloudy in the evening, then clearing. Lows around 40.

WEDNESDAY
Mostly sunny. Highs in the mid 50s.

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

THURSDAY
Partly sunny. Highs in the mid 50s.

THURSDAY NIGHT
Partly cloudy. Lows around 40.

FRIDAY
Partly sunny. Highs in the upper 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 10/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
17 OCT 2026

2 AM

48°

43°

Mostly Cloudy

5%

0% Thunder
( 0% severe)

WNW 13

83%

43°

Low 41°

5 AM

43°

37°

Mostly Cloudy

WNW 12

76%

36°

High 51°

8 AM

42°

36°

Mostly Cloudy

4%

0% Thunder
( 0% severe)

NW 12

76%

35°

Decreasing Clouds

11 AM

46°

40°

Mostly Cloudy

NW 14

58%

32°

2 PM

50°

44°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NW 16

40%

27°

5 PM

47°

41°

Clear

NW 13

36%

22°

8 PM

39°

33°

Clear

0%

0% Thunder
( 0% severe)

NW 8

47%

21°

11 PM

35°

30°

Clear

NW 6

60%

23°

Sunday
18 OCT 2026

2 AM

33°

29°

Clear

0%

0% Thunder
( 0% severe)

NW 5

65%

23°

Low 31°

5 AM

32°

29°

Clear

W 3

68%

23°

High 53°

8 AM

33°

30°

Clear

0%

0% Thunder
( 0% severe)

W 3

71%

25°

Clear

11 AM

46°

45°

Clear

CALM

43%

25°

2 PM

52°

51°

Clear

0%

0% Thunder
( 0% severe)

S 5

37%

27°

5 PM

50°

48°

Clear

SSE 6

44%

29°

8 PM

42°

39°

Clear

0%

0% Thunder
( 0% severe)

S 5

65%

31°

11 PM

40°

38°

Clear

CALM

79%

34°


PORTSMOUTH, NH extended weather forecast
Monday 19 OCT 2026	Tuesday 20 OCT 2026	Wednesday 21 OCT 2026	Thursday 22 OCT 2026	Friday 23 OCT 2026
Low 35°	Low 41°	Low 42°	Low 39°	Low 37°
High 57°	High 63°	High 53°	High 55°	High 58°

Partly Cloudy 6% Rain	Partly Cloudy 10% Rain	Partly Cloudy 13% Rain	Partly Cloudy 22% Rain	Partly Cloudy 21% Rain

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