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 EST FEB 18, 2026
Few Clouds Patchy Fog Mist 30°F
Feels Like:	27°F
Dewpoint:	28°F
Rel. Hum.:	92%
Visibility:	2 miles
Wind:	SW at 3 mph
Pressure:	29.92 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
Partly cloudy. Lows in the mid 20s. Light and variable winds.

WEDNESDAY
Mostly cloudy. A chance of snow and rain in the afternoon. Highs in the upper 30s. Light and variable winds. Chance of precipitation 30 percent.

WEDNESDAY NIGHT
Mostly cloudy with a chance of snow in the evening, then partly cloudy after midnight. Lows in the lower 20s. Light and variable winds. Chance of snow 40 percent.

THURSDAY
Partly sunny. Highs in the upper 30s. Light and variable winds.

THURSDAY NIGHT
Partly cloudy. Lows in the lower 20s. Light and variable winds.

FRIDAY
A chance of snow in the morning, then snow likely in the afternoon. Highs in the upper 30s. Chance of snow 70 percent.

FRIDAY NIGHT
Snow, mainly in the evening. Lows in the mid 20s. Chance of snow 90 percent.

SATURDAY
Mostly cloudy with a 50 percent chance of snow. Highs in the mid 30s.

SATURDAY NIGHT
Mostly cloudy with a chance of snow in the evening, then partly cloudy after midnight. Lows around 20. Chance of snow 30 percent.

SUNDAY
Mostly cloudy. A chance of snow in the afternoon. Highs in the mid 30s. Chance of snow 30 percent.

SUNDAY NIGHT
Cloudy with a 50 percent chance of snow. Lows in the mid 20s.

MONDAY
Mostly cloudy with a 40 percent chance of snow. Highs in the mid 30s.

MONDAY NIGHT
Mostly cloudy with a chance of snow in the evening, then partly cloudy after midnight. Lows 15 to 20. Chance of snow 30 percent.

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 2/17/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
18 FEB 2026

1 AM

32°

27°

Partly Cloudy

2%

0% Thunder
( 0% severe)

W 5

88%

29°

Low 29°

4 AM

31°

26°

Partly Cloudy

WSW 5

88%

28°

High 41°

7 AM

30°

25°

Mostly Cloudy

15%
RAIN/SNOW
<.05 in

0% Thunder
( 0% severe)

W 5

88%

27°

Mostly Cloudy

Chance of Rain

10 AM

37°

33°

Mostly Cloudy

WNW 5

64%

26°

1 PM

40°

37°

Mostly Cloudy

33%
RAIN
<.01 in

0% Thunder
( 0% severe)

WNW 5

47%

22°

4 PM

39°

37°

Mostly Cloudy

NNW 3

49%

22°

7 PM

34°

32°

Mostly Cloudy

40%
SNOW
.1–1 in

0% Thunder
( 0% severe)

N 2

60%

22°

10 PM

31°

26°

Mostly Cloudy

NNE 5

61%

20°

Thursday
19 FEB 2026

1 AM

28°

23°

Mostly Cloudy

9%

0% Thunder
( 0% severe)

N 5

63%

18°

Low 22°

4 AM

25°

19°

Partly Cloudy

N 5

69%

17°

High 39°

7 AM

22°

17°

Partly Cloudy

1%

0% Thunder
( 0% severe)

NNW 3

75%

16°

Partly Cloudy

10 AM

32°

29°

Partly Cloudy

N 2

53%

18°

1 PM

38°

36°

Partly Cloudy

1%

0% Thunder
( 0% severe)

SE 1

42%

18°

4 PM

37°

35°

Partly Cloudy

S 2

48%

20°

7 PM

31°

28°

Partly Cloudy

2%

0% Thunder
( 0% severe)

SSW 1

64%

21°

10 PM

28°

25°

Partly Cloudy

SW 1

73%

21°


PORTSMOUTH, NH extended weather forecast
Friday 20 FEB 2026	Saturday 21 FEB 2026	Sunday 22 FEB 2026	Monday 23 FEB 2026	Tuesday 24 FEB 2026
Low 22°	Low 26°	Low 23°	Low 24°	Low 26°
High 37°	High 35°	High 35°	High 35°	High 41°

Mostly Cloudy 68% Snow	Overcast 83% Snow	Overcast 50% Snow	Overcast 50% Snow	Partly Cloudy 22% Snow

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