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 EST MAR 3, 2026
Light Snow Freezing Fog 28°F
Feels Like:	28°F
Dewpoint:	27°F
Rel. Hum.:	96%
Visibility:	1/2 miles
Wind:	Calm
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
Snow, rain with a slight chance of sleet in the evening. Freezing rain. Additional snow and sleet accumulation around an inch. Total snow accumulation 2 to 3 inches. Ice accumulation of up to a tenth of an inch. Lows in the upper 20s. Light and variable winds. Chance of precipitation near 100 percent.

WEDNESDAY
Mostly sunny. Highs in the upper 40s. Light and variable winds.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 20s. Light and variable winds.

THURSDAY
Partly sunny in the morning, then mostly cloudy with a chance of rain in the afternoon. Highs in the lower 40s. Light and variable winds. Chance of rain 30 percent.

THURSDAY NIGHT
Rain and snow likely. Freezing rain after midnight. Lows around 30. Chance of precipitation 80 percent.

FRIDAY
Rain and freezing rain likely in the morning, then a chance of rain in the afternoon. Highs in the mid 30s. Chance of precipitation 70 percent.

FRIDAY NIGHT
Cloudy. Lows around 30.

SATURDAY
Cloudy. Highs in the lower 50s.

SATURDAY NIGHT
Rain likely, mainly in the evening. Lows in the lower 40s. Chance of rain 60 percent.

SUNDAY
Mostly cloudy with a chance of rain in the morning, then mostly sunny in the afternoon. Highs in the mid 50s. Chance of rain 30 percent.

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

MONDAY
Partly sunny. Highs in the mid 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 7:00 AM EST 3/ 3/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
3 MAR 2026

1 PM

35°

27°

Mostly Cloudy

94%
SNOW
***

0% Thunder
( 1% severe)

SSW 10

45%

17°

High 36°

4 PM

34°

27°

Mostly Cloudy

SSW 8

63%

23°

Mostly Cloudy

Rain & Snow

7 PM

31°

26°

Mostly Cloudy

97%
RAIN/SNOW
***

0% Thunder
( 1% severe)

SSE 5

84%

27°

10 PM

33°

30°

Mostly Cloudy

E 2

85%

29°

Wednesday
4 MAR 2026

1 AM

32°

29°

Mostly Cloudy

51%
RAIN
.25–.5 in

0% Thunder
( 1% severe)

NW 1

88%

29°

Low 27°

4 AM

30°

26°

Partly Cloudy

W 3

92%

28°

High 50°

7 AM

29°

25°

Partly Cloudy

1%

0% Thunder
( 0% severe)

W 3

92%

27°

Clear

10 AM

41°

39°

Clear

WNW 3

67%

31°

1 PM

49°

47°

Clear

1%

0% Thunder
( 0% severe)

W 5

50%

31°

4 PM

48°

47°

Clear

W 3

56%

33°

7 PM

39°

37°

Clear

3%

0% Thunder
( 0% severe)

WSW 2

73%

31°

10 PM

34°

32°

Clear

W 1

82%

29°

Thursday
5 MAR 2026

1 AM

30°

27°

Partly Cloudy

5%

0% Thunder
( 0% severe)

WNW 1

84%

26°

Low 24°

4 AM

28°

25°

Partly Cloudy

N 1

88%

25°

High 41°

7 AM

29°

26°

Partly Cloudy

9%

0% Thunder
( 0% severe)

N 2

84%

25°

Mostly Cloudy

10 AM

36°

33°

Partly Cloudy

NE 3

75%

29°

1 PM

40°

35°

Mostly Cloudy

15%
RAIN
.01–.1 in

0% Thunder
( 1% severe)

ENE 7

70%

31°

4 PM

39°

34°

Mostly Cloudy

ENE 7

73%

31°

7 PM

35°

30°

Mostly Cloudy

ENE 6

85%

31°


PORTSMOUTH, NH extended weather forecast
Friday 6 MAR 2026	Saturday 7 MAR 2026	Sunday 8 MAR 2026	Monday 9 MAR 2026	Tuesday 10 MAR 2026
Low 28°	Low 28°	Low 35°	Low 32°	Low 32°
High 37°	High 44°	High 57°	High 54°	High 48°

Overcast 86% Ice	Overcast 72% Rain/Ice	Overcast 44% Rain	Overcast 25% Rain	Partly Cloudy 23% Rain

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