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 20, 2026
Scattered Clouds 46°F
Feels Like:	39°F
Dewpoint:	19°F
Rel. Hum.:	32%
Visibility:	10 miles
Wind:	NNW at 18 mph
Pressure:	30.14 inches
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. Isolated rain and snow showers this evening. Lows in the upper 20s. Light and variable winds. Chance of precipitation 20 percent.

TUESDAY
Mostly sunny. Highs in the mid 40s. Light and variable winds, becoming southeast around 10 mph in the afternoon.

TUESDAY NIGHT
Partly cloudy. Lows in the mid 30s. Light and variable winds.

WEDNESDAY
Cloudy. Highs in the upper 40s. Light and variable winds, becoming south around 10 mph in the afternoon.

WEDNESDAY NIGHT
Mostly cloudy. Lows in the upper 30s. Light and variable winds.

THURSDAY
Partly sunny. Highs in the mid 50s.

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

FRIDAY
Partly sunny. Highs in the mid 50s.

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

SATURDAY
Partly sunny. Highs in the lower 50s.

SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A 30 percent chance of showers. Lows in the upper 30s.

SUNDAY
Partly sunny. Highs in the mid 50s.

SUNDAY NIGHT
Partly cloudy. Lows around 40.

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 4/20/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
20 APR 2026

2 PM

48°

44°

Mostly Cloudy

16%
RAIN
<.01 in

0% Thunder
( 3% severe)

W 8

35%

22°

High 49°

5 PM

47°

44°

Mostly Cloudy

NW 7

36%

22°

Mostly Cloudy

8 PM

41°

38°

Partly Cloudy

4%

0% Thunder
( 0% severe)

NNW 5

41%

20°

11 PM

37°

32°

Mostly Cloudy

NNW 6

46%

19°

Tuesday
21 APR 2026

2 AM

33°

29°

Partly Cloudy

2%

0% Thunder
( 0% severe)

N 5

49%

17°

Low 29°

5 AM

31°

28°

Partly Cloudy

NNW 3

51%

16°

High 47°

8 AM

35°

33°

Clear

1%

0% Thunder
( 0% severe)

N 2

43%

16°

Clear

11 AM

43°

42°

Clear

SE 2

28%

14°

2 PM

45°

42°

Partly Cloudy

2%

0% Thunder
( 0% severe)

SE 6

29%

16°

5 PM

44°

39°

Clear

SSE 8

35%

19°

8 PM

39°

34°

Partly Cloudy

2%

0% Thunder
( 1% severe)

SSE 7

51%

23°

11 PM

38°

34°

Partly Cloudy

S 6

61%

26°

Wednesday
22 APR 2026

2 AM

37°

33°

Mostly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 1% severe)

S 5

66%

27°

Low 35°

5 AM

37°

33°

Mostly Cloudy

SSW 5

72%

29°

High 49°

8 AM

39°

36°

Mostly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 1% severe)

S 5

73%

31°

Mostly Cloudy

11 AM

44°

40°

Mostly Cloudy

S 7

65%

33°

2 PM

46°

41°

Mostly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 0% severe)

S 9

65%

35°

5 PM

47°

43°

Mostly Cloudy

S 8

63%

35°

8 PM

43°

40°

Mostly Cloudy

S 5

76%

36°


PORTSMOUTH, NH extended weather forecast
Thursday 23 APR 2026	Friday 24 APR 2026	Saturday 25 APR 2026	Sunday 26 APR 2026	Monday 27 APR 2026
Low 39°	Low 35°	Low 35°	Low 37°	Low 41°
High 57°	High 55°	High 54°	High 56°	High 60°

Mostly Cloudy 9% Rain	Partly Cloudy 7% Rain	Partly Cloudy 10% Rain	Partly Cloudy 21% Rain	Overcast 30% Rain

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