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 MAR 25, 2026
Clear 34°F
Feels Like:	29°F
Dewpoint:	21°F
Rel. Hum.:	57%
Visibility:	10 miles
Wind:	WSW at 6 mph
Pressure:	30.23 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

REST OF TONIGHT
Mostly clear. Lows in the lower 30s. West winds around 10 mph with gusts up to 20 mph.

WEDNESDAY
Partly sunny. Highs in the lower 50s. West winds around 10 mph with gusts up to 20 mph.

WEDNESDAY NIGHT
Partly cloudy in the evening, then cloudy with a slight chance of rain after midnight. Lows in the mid 30s. South winds around 10 mph. Chance of rain 20 percent.

THURSDAY
Mostly cloudy in the morning, then becoming partly sunny. A 40 percent chance of rain. Highs around 60. Southwest winds 10 to 15 mph with gusts up to 25 mph.

THURSDAY NIGHT
Rain. Lows in the upper 30s. Southwest winds around 10 mph with gusts up to 20 mph. Chance of rain 80 percent.

FRIDAY
Rain likely in the morning, then partly sunny in the afternoon. Highs in the mid 40s. Chance of rain 70 percent.

FRIDAY NIGHT
Mostly clear. Cooler with lows around 20.

SATURDAY
Partly sunny. Highs in the mid 30s.

SATURDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the lower 20s.

SUNDAY
Partly sunny. Highs in the lower 40s.

SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 20s.

MONDAY
Mostly cloudy. Highs in the lower 50s.

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

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 3/24/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
25 MAR 2026

1 AM

35°

28°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 8

57%

22°

Low 31°

4 AM

32°

26°

Clear

W 7

62%

21°

High 51°

7 AM

33°

27°

Partly Cloudy

0%

0% Thunder
( 0% severe)

W 7

59%

21°

Partly Cloudy

10 AM

43°

38°

Mostly Cloudy

W 8

40%

21°

1 PM

49°

46°

Partly Cloudy

3%

0% Thunder
( 0% severe)

W 7

30%

20°

4 PM

49°

46°

Partly Cloudy

S 7

33%

22°

7 PM

43°

39°

Partly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 1% severe)

SSE 7

55%

28°

10 PM

41°

36°

Mostly Cloudy

S 8

59%

28°

Thursday
26 MAR 2026

1 AM

40°

35°

Mostly Cloudy

39%
RAIN
.01–.1 in

0% Thunder
( 1% severe)

SSW 8

64%

29°

Low 36°

4 AM

39°

33°

Mostly Cloudy

S 8

73%

31°

High 61°

7 AM

40°

35°

Mostly Cloudy

28%
RAIN
.01–.1 in

0% Thunder
( 0% severe)

S 8

82%

35°

Mostly Cloudy

Chance of Rain

10 AM

50°

46°

Mostly Cloudy

SSW 12

63%

38°

1 PM

57°

54°

Mostly Cloudy

21%
RAIN
<.01 in

0% Thunder
( 3% severe)

SW 14

53%

40°

4 PM

59°

57°

Mostly Cloudy

SSW 13

53%

42°

7 PM

55°

52°

Mostly Cloudy

59%
RAIN
***

0% Thunder
( 3% severe)

SSW 10

64%

43°

10 PM

52°

48°

Mostly Cloudy

SW 10

74%

44°


PORTSMOUTH, NH extended weather forecast
Friday 27 MAR 2026	Saturday 28 MAR 2026	Sunday 29 MAR 2026	Monday 30 MAR 2026	Tuesday 31 MAR 2026
Low 41°	Low 20°	Low 21°	Low 29°	Low 39°
High 48°	High 33°	High 44°	High 53°	High 57°

Mostly Cloudy 90% Rain/Snow	Mostly Cloudy 25% Snow	Clear 7% Snow	Mostly Cloudy 26% Rain/Snow	Overcast 34% Rain

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