PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
7:55 AM EST JAN 5, 2026
Few Clouds 10°F
Feels Like:	1°F
Dewpoint:	0°F
Rel. Hum.:	59%
Visibility:	10 miles
Wind:	W at 5 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

TODAY
Partly sunny this morning, then becoming mostly cloudy. Highs in the mid 20s. Northwest winds around 10 mph with gusts up to 20 mph this morning, becoming light and variable. Wind chill values as low as 3 below this morning.

TONIGHT
Cloudy. Snow likely, mainly in the evening. Snow accumulation around an inch. Near steady temperature in the lower 20s. Light and variable winds. Chance of snow 70 percent.

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

TUESDAY NIGHT
Snow, sleet with a chance of rain in the evening, then rain and freezing rain after midnight. Little or no snow accumulation. Lows in the lower 30s. Light and variable winds. Chance of precipitation 90 percent.

WEDNESDAY
Mostly cloudy with freezing rain likely with a chance of rain in the morning, then partly sunny in the afternoon. Highs in the upper 30s. Northwest winds around 10 mph. Chance of precipitation 70 percent.

WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 20s.

THURSDAY
Mostly sunny. Highs in the lower 40s.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 20s.

FRIDAY
Cloudy with a 50 percent chance of rain. Highs in the upper 40s.

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

SATURDAY
Cloudy with a 50 percent chance of rain. Highs around 50.

SATURDAY NIGHT
Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s.

SUNDAY
Partly sunny. Highs in the lower 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 1/ 4/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
5 JAN 2026

1 AM

16°

6°

Clear

0%

0% Thunder
( 0% severe)

WNW 7

54%

4°

Low 9°

4 AM

12°

1°

Clear

NW 7

56%

1°

High 25°

7 AM

10°

0°

Mostly Cloudy

9%

0% Thunder
( 0% severe)

WNW 6

59%

0°

Mostly Cloudy

Chance of Snow

10 AM

15°

9°

Partly Cloudy

WNW 3

46%

0°

1 PM

21°

17°

Mostly Cloudy

23%
SNOW
<.1 in

0% Thunder
( 1% severe)

W 1

36%

1°

4 PM

22°

18°

Mostly Cloudy

SW 2

43%

5°

7 PM

22°

18°

Mostly Cloudy

59%
SNOW
***

0% Thunder
( 1% severe)

SSW 1

58%

11°

10 PM

23°

19°

Overcast

SW 1

79%

18°

Tuesday
6 JAN 2026

1 AM

24°

20°

Mostly Cloudy

22%
SNOW
.1–1 in

0% Thunder
( 2% severe)

NNW 1

83%

20°

Low 18°

4 AM

23°

19°

Mostly Cloudy

NNW 1

87%

20°

High 36°

7 AM

21°

17°

Mostly Cloudy

5%

0% Thunder
( 0% severe)

NNW 1

91%

19°

Mostly Cloudy

10 AM

27°

24°

Mostly Cloudy

N 2

76%

21°

1 PM

32°

29°

Mostly Cloudy

19%
SNOW/ICE
<.05 in

0% Thunder
( 0% severe)

NE 3

71%

24°

4 PM

33°

30°

Mostly Cloudy

E 3

74%

26°

7 PM

32°

29°

Overcast

64%
RAIN/SNOW
***

0% Thunder
( 1% severe)

ENE 2

85%

28°

10 PM

34°

31°

Overcast

E 3

89%

31°


PORTSMOUTH, NH extended weather forecast
Wednesday 7 JAN 2026	Thursday 8 JAN 2026	Friday 9 JAN 2026	Saturday 10 JAN 2026	Sunday 11 JAN 2026
Low 27°	Low 28°	Low 23°	Low 37°	Low 31°
High 39°	High 43°	High 46°	High 53°	High 44°

Overcast 87% Rain/Ice	Partly Cloudy 10% Rain/Snow	Mostly Cloudy 50% Rain/Snow	Overcast 80% Rain	Overcast 49% Rain

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