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 APR 1, 2026
Overcast Mist 39°F
Feels Like:	32°F
Dewpoint:	37°F
Rel. Hum.:	92%
Visibility:	5 miles
Wind:	SSE at 10 mph
Pressure:	29.81 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 2025 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Mostly cloudy this morning, then becoming partly sunny. Patchy fog this morning. A 50 percent chance of showers. Highs in the lower 60s. West winds around 10 mph, becoming north this afternoon.

TONIGHT
Partly cloudy with a slight chance of rain showers in the evening, then cloudy with a chance of rain showers after midnight. Lows in the mid 30s. Light and variable winds, becoming northeast around 10 mph with gusts up to 20 mph after midnight. Chance of rain 50 percent.

THURSDAY
Cloudy with a chance of rain showers. A chance of sleet in the afternoon. Colder with highs in the upper 30s. Northeast winds around 10 mph with gusts up to 25 mph. Chance of precipitation 50 percent.

THURSDAY NIGHT
Cloudy with a 50 percent chance of rain. Lows in the mid 30s. East winds around 10 mph in the evening, becoming light and variable.

FRIDAY
Mostly cloudy. A chance of rain in the morning. Warmer with highs in the lower 60s. Light and variable winds, becoming south around 10 mph in the afternoon. Chance of rain 40 percent.

FRIDAY NIGHT
Partly cloudy. Lows in the upper 40s.

SATURDAY
Partly sunny. Highs in the lower 60s. Temperatures falling to around 50 in the afternoon.

SATURDAY NIGHT
Cloudy with a 50 percent chance of showers. Lows in the upper 30s.

SUNDAY
A chance of showers in the morning, then showers likely in the afternoon. Highs in the lower 60s. Chance of rain 70 percent.

SUNDAY NIGHT
Showers likely, mainly in the evening. Lows in the upper 30s. Chance of rain 60 percent.

MONDAY
Partly sunny. Highs around 50.

MONDAY NIGHT
Mostly clear. Lows around 30.

TUESDAY
Partly sunny. Highs in the upper 40s.

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 7:00 PM EST 3/31/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
1 APR 2026

1 AM

42°

41°

Mostly Cloudy

61%
RAIN
.25–.5 in

0% Thunder
( 5% severe)

SW 2

89%

39°

Low 41°

4 AM

44°

41°

Mostly Cloudy

SW 5

89%

41°

High 63°

7 AM

48°

45°

Mostly Cloudy

29%
RAIN
.01–.1 in

0% Thunder
( 5% severe)

WSW 7

93%

46°

Mostly Cloudy

Chance of Rain

10 AM

60°

59°

Mostly Cloudy

W 8

75%

52°

1 PM

60°

59°

Mostly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 1% severe)

NNW 9

62%

47°

4 PM

56°

54°

Partly Cloudy

NNE 9

57%

41°

7 PM

48°

45°

Mostly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 0% severe)

ENE 6

68%

38°

10 PM

43°

39°

Mostly Cloudy

ENE 6

70%

34°

Thursday
2 APR 2026

1 AM

40°

35°

Mostly Cloudy

29%
RAIN
<.01 in

0% Thunder
( 1% severe)

ENE 7

76%

33°

Low 34°

4 AM

37°

31°

Mostly Cloudy

ENE 8

79%

31°

High 41°

7 AM

35°

27°

Mostly Cloudy

30%
RAIN/ICE
.25–.5 in

0% Thunder
( 2% severe)

ENE 10

82%

30°

Mostly Cloudy

Chance of Rain & Ice

10 AM

38°

30°

Mostly Cloudy

ENE 12

73%

30°

1 PM

38°

30°

Mostly Cloudy

27%
RAIN
.01–.1 in

0% Thunder
( 1% severe)

ENE 13

70%

29°

4 PM

38°

31°

Mostly Cloudy

ENE 10

70%

29°

7 PM

38°

33°

Mostly Cloudy

29%
RAIN
.01–.1 in

0% Thunder
( 1% severe)

E 7

76%

31°

10 PM

37°

32°

Mostly Cloudy

E 6

82%

32°


PORTSMOUTH, NH extended weather forecast
Friday 3 APR 2026	Saturday 4 APR 2026	Sunday 5 APR 2026	Monday 6 APR 2026	Tuesday 7 APR 2026
Low 32°	Low 47°	Low 37°	Low 39°	Low 31°
High 55°	High 51°	High 54°	High 53°	High 47°

Overcast 50% Rain	Mostly Cloudy 21% Rain	Overcast 81% Rain	Overcast 44% Rain/Snow	Mostly Cloudy 25% Rain/Snow

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