PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

Local Weather
- Local weather by ZIP or City
- Local area snow depth
- CURRENT WEATHER MAPS
- - Fronts & Pressure Centers
- - Current U.S. Temperatures
- - Northwest U.S.
- - Northeast U.S.
- - Mid-Atlantic U.S.
- - Midwest U.S.
- - Central Plains U.S.
- - Southeast U.S.
- - Southern Plains U.S.
- - Southwest U.S.
- - Alaska
10 Day Forecasts
Other Forecasts
- Snowstorm Forecast
- U.S. 6-hourly Snowfall Forecast
- 3 DAY NAM MODEL FORECASTS
- - Clouds & Precipitation
- - Temperature
- 7 DAY NWS FORECASTS
- - Weather Type
- - Precip. Probability
- - High Temperatures
- - Low Temperatures
- - Cloud Cover
- - Wind
- - Relative Humidity
- - Dewpoint
- - Snowfall
- SEASONAL FORECASTS
- - Temperature
- - Precipitation
Severe Weather
Radar
- U.S. RADAR (NWS interactive)
- U.S. RADAR (by state)
Satellite

03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
9:55 PM EDT MAR 12, 2026
Overcast 36°F
Feels Like:	25°F
Dewpoint:	18°F
Rel. Hum.:	46%
Visibility:	10 miles
Wind:	NW at 21 mph, gusts to 26
Pressure:	29.77 inches
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
Cloudy with scattered snow showers this evening, then mostly clear after midnight. Lows in the mid 20s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 50 percent.

FRIDAY
Sunny in the morning, then partly sunny with a chance of snow with a slight chance of rain in the afternoon. Highs in the lower 40s. West winds around 10 mph, becoming south with gusts up to 20 mph in the afternoon. Chance of precipitation 30 percent.

FRIDAY NIGHT
Cloudy in the evening, then becoming partly cloudy. A chance of snow and rain. Lows in the lower 30s. South winds around 10 mph with gusts up to 20 mph. Chance of precipitation 50 percent.

SATURDAY
Partly sunny. A chance of rain in the morning. Highs in the mid 40s. West winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 40 percent.

SATURDAY NIGHT
Mostly clear. Lows in the mid 20s.

SUNDAY
Partly sunny in the morning, then becoming mostly cloudy. Highs in the lower 40s.

SUNDAY NIGHT
Cloudy. A chance of rain after midnight. Lows in the lower 30s. Chance of rain 50 percent.

MONDAY
Rain. Highs in the upper 50s. Chance of rain near 100 percent.

MONDAY NIGHT
Rain. Lows in the mid 30s. Chance of rain near 100 percent.

TUESDAY
Mostly cloudy with a chance of rain in the morning, then partly sunny in the afternoon. Highs in the upper 40s. Chance of rain 50 percent.

TUESDAY NIGHT
Partly cloudy in the evening, then clearing. Lows around 20.

WEDNESDAY
Mostly sunny. Highs 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 AM EST 3/12/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
12 MAR 2026

1 PM

41°

33°

Mostly Cloudy

53%
RAIN
.01–.1 in

0% Thunder
( 2% severe)

WNW 14

57%

27°

High 42°

4 PM

39°

32°

Mostly Cloudy

WNW 12

54%

24°

Mostly Cloudy

Rain Likely

7 PM

34°

27°

Mostly Cloudy

14%
SNOW
<.1 in

0% Thunder
( 0% severe)

WNW 9

54%

20°

10 PM

31°

22°

Mostly Cloudy

WNW 10

51%

16°

Friday
13 MAR 2026

1 AM

28°

19°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WNW 10

52%

14°

Low 24°

4 AM

26°

17°

Clear

WNW 8

51%

12°

High 42°

7 AM

26°

20°

Clear

1%

0% Thunder
( 0% severe)

W 5

54%

13°

Increasing Clouds

Chance of Snow

10 AM

35°

30°

Clear

WSW 6

37%

13°

1 PM

40°

33°

Mostly Cloudy

27%
SNOW
<.1 in

0% Thunder
( 2% severe)

SSW 10

32%

14°

4 PM

40°

33°

Mostly Cloudy

S 12

41%

19°

7 PM

36°

28°

Mostly Cloudy

30%
RAIN/SNOW
<.05 in

0% Thunder
( 3% severe)

S 10

58%

23°

10 PM

36°

28°

Mostly Cloudy

S 10

66%

26°

Saturday
14 MAR 2026

1 AM

36°

29°

Mostly Cloudy

30%
RAIN
.1–.25 in

0% Thunder
( 3% severe)

S 9

79%

30°

Low 31°

4 AM

36°

29°

Mostly Cloudy

SW 9

79%

30°

High 46°

7 AM

35°

27°

Partly Cloudy

7%

0% Thunder
( 1% severe)

WSW 10

75%

28°

Mostly Cloudy

10 AM

41°

33°

Mostly Cloudy

W 15

54%

26°

1 PM

44°

36°

Mostly Cloudy

1%

0% Thunder
( 0% severe)

W 20

39%

21°

4 PM

43°

35°

Partly Cloudy

W 17

36%

19°

7 PM

37°

29°

Partly Cloudy

W 13

44%

18°


PORTSMOUTH, NH extended weather forecast
Sunday 15 MAR 2026	Monday 16 MAR 2026	Tuesday 17 MAR 2026	Wednesday 18 MAR 2026	Thursday 19 MAR 2026
Low 25°	Low 34°	Low 39°	Low 23°	Low 21°
High 41°	High 50°	High 44°	High 42°	High 40°

Partly Cloudy 8% Snow	Overcast 90% Rain/Snow	Overcast 99% Rain/Snow	Partly Cloudy 44% Snow	Overcast 27% Snow

WEATHER SELECT BOX EXAMPLES:

for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:

Portsmouth, NH
Portsmouth, NH snow
Portsmouth, NH radar
NH map

-or-
-or-
-or-

03803
03803 snow
03803 radar

-or-
-or-

NH
NH snow

Copyright © 2024 WeatherStreet.com

Put our free WeatherStreet weather lookup on your web page.

Terms & Conditions
This is not clickable - please e-mail us separately

This is not clickable - please e-mail us separately