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
10:55 PM EDT MAY 17, 2026
Broken Clouds 66°F
Feels Like:	66°F
Dewpoint:	57°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	Calm
Pressure:	30.06 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
Partly cloudy. Lows in the lower 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph in the evening, becoming light and variable.

MONDAY
Partly sunny. Highs in the upper 60s. Light and variable winds, becoming southeast around 10 mph in the afternoon.

MONDAY NIGHT
Mostly clear. Lows in the mid 50s. Light and variable winds.

TUESDAY
Partly sunny. Much warmer with highs in the lower 90s. Southwest winds around 10 mph.

TUESDAY NIGHT
Partly cloudy. Lows in the mid 60s.

WEDNESDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the upper 80s. Chance of rain 50 percent.

WEDNESDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows around 50. Chance of rain 40 percent.

THURSDAY
Partly sunny. Much cooler with highs in the mid 60s.

THURSDAY NIGHT
Mostly clear. Lows in the mid 40s.

FRIDAY
Partly sunny. Highs in the lower 60s.

FRIDAY NIGHT
Partly cloudy. Lows in the mid 40s.

SATURDAY
Mostly cloudy with a 30 percent chance of showers. Highs in the lower 60s.

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 8:00 AM EDT 5/17/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
17 MAY 2026

2 PM

81°

80°

Partly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 5% severe)

W 14

33%

49°

High 82°

5 PM

80°

80°

Partly Cloudy

WNW 12

39%

53°

Partly Cloudy

8 PM

70°

70°

Partly Cloudy

0%

0% Thunder
( 0% severe)

NNW 6

53%

52°

11 PM

62°

62°

Partly Cloudy

NNW 5

60%

48°

Monday
18 MAY 2026

2 AM

55°

55°

Partly Cloudy

1%

0% Thunder
( 0% severe)

CALM

74%

47°

Low 52°

5 AM

52°

52°

Partly Cloudy

CALM

80%

46°

High 68°

8 AM

57°

58°

Partly Cloudy

3%

0% Thunder
( 1% severe)

CALM

64%

45°

Partly Cloudy

11 AM

62°

62°

Partly Cloudy

ESE 7

48%

42°

2 PM

64°

63°

Partly Cloudy

4%

0% Thunder
( 4% severe)

SE 10

45%

42°

5 PM

63°

62°

Partly Cloudy

SE 10

50%

44°

8 PM

59°

58°

Clear

2%

0% Thunder
( 8% severe)

SE 6

62%

46°

11 PM

58°

58°

Partly Cloudy

S 5

75%

50°

Tuesday
19 MAY 2026

2 AM

59°

58°

Partly Cloudy

4%

0% Thunder
( 7% severe)

SSW 6

83%

54°

Low 56°

5 AM

61°

61°

Partly Cloudy

SW 6

81%

55°

High 90°

8 AM

68°

68°

Partly Cloudy

0%

0% Thunder
( 3% severe)

SW 6

73%

59°

Partly Cloudy

11 AM

82°

83°

Partly Cloudy

SW 9

51%

62°

2 PM

88°

88°

Partly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 13% severe)

WSW 13

40%

61°

5 PM

86°

87°

Partly Cloudy

WSW 12

45%

62°

8 PM

79°

80°

Partly Cloudy

SW 8

54%

61°


PORTSMOUTH, NH extended weather forecast
Wednesday 20 MAY 2026	Thursday 21 MAY 2026	Friday 22 MAY 2026	Saturday 23 MAY 2026	Sunday 24 MAY 2026
Low 66°	Low 52°	Low 44°	Low 46°	Low 49°
High 86°	High 64°	High 62°	High 63°	High 63°

Partly Cloudy 42% Rain	Partly Cloudy 12% Rain	Mostly Cloudy 41% Rain	Overcast 69% Rain	Overcast 51% Rain

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