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 PM EDT APR 19, 2026
Overcast Light Rain Mist 41°F
Feels Like:	35°F
Dewpoint:	34°F
Rel. Hum.:	76%
Visibility:	5 miles
Wind:	WNW at 10 mph, gusts to 24
Pressure:
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

TONIGHT
Partly cloudy with a chance of rain in the evening, then clear after midnight. Lows in the lower 30s. West winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 50 percent.

MONDAY
Mostly sunny in the morning, then mostly cloudy with a slight chance of rain showers in the afternoon. Highs around 50. Light and variable winds. Chance of rain 20 percent.

MONDAY NIGHT
Partly cloudy. Lows around 30. Light and variable winds.

TUESDAY
Partly sunny. Highs in the mid 40s. Light and variable winds.

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

WEDNESDAY
Mostly cloudy. Highs in the upper 40s.

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

THURSDAY
Partly sunny. Highs in the upper 50s.

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

FRIDAY
Partly sunny. Highs in the mid 50s.

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

SATURDAY
Partly sunny with a 30 percent chance of showers. Highs in the lower 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 AM EDT 4/19/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
19 APR 2026

2 PM

49°

46°

Mostly Cloudy

98%
RAIN
***

0% Thunder
( 11% severe)

NW 7

83%

44°

High 50°

5 PM

44°

38°

Mostly Cloudy

NW 13

79%

38°

Decreasing Clouds

Rain

8 PM

41°

35°

Mostly Cloudy

9%

0% Thunder
( 0% severe)

WNW 10

76%

34°

11 PM

39°

33°

Clear

W 8

70%

30°

Monday
20 APR 2026

2 AM

36°

31°

Clear

0%

0% Thunder
( 0% severe)

W 6

75%

29°

Low 33°

5 AM

35°

31°

Clear

W 5

75%

28°

High 51°

8 AM

39°

36°

Clear

4%

0% Thunder
( 3% severe)

W 5

64%

28°

Increasing Clouds

11 AM

46°

43°

Mostly Cloudy

W 6

43%

25°

2 PM

48°

44°

Mostly Cloudy

18%
RAIN
<.01 in

0% Thunder
( 6% severe)

WNW 8

38%

24°

5 PM

47°

43°

Mostly Cloudy

NW 8

39%

24°

8 PM

40°

36°

Partly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 1% severe)

NNW 6

54%

25°

11 PM

37°

32°

Mostly Cloudy

N 6

53%

22°

Tuesday
21 APR 2026

2 AM

33°

28°

Mostly Cloudy

2%

0% Thunder
( 0% severe)

N 6

57%

20°

Low 29°

5 AM

31°

25°

Partly Cloudy

N 6

56%

18°

High 46°

8 AM

35°

31°

Partly Cloudy

0%

0% Thunder
( 0% severe)

N 5

45%

17°

Partly Cloudy

11 AM

42°

41°

Partly Cloudy

ENE 2

31%

15°

2 PM

44°

41°

Partly Cloudy

2%

0% Thunder
( 0% severe)

SE 6

30%

16°

5 PM

44°

40°

Partly Cloudy

SSE 7

35%

19°

8 PM

38°

34°

Partly Cloudy

SSE 6

56%

24°


PORTSMOUTH, NH extended weather forecast
Wednesday 22 APR 2026	Thursday 23 APR 2026	Friday 24 APR 2026	Saturday 25 APR 2026	Sunday 26 APR 2026
Low 35°	Low 37°	Low 37°	Low 39°	Low 42°
High 51°	High 59°	High 56°	High 56°	High 61°

Overcast 56% Rain/Snow	Partly Cloudy 8% Rain	Partly Cloudy 6% Rain	Partly Cloudy 20% Rain	Overcast 30% Rain

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