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
6:55 AM EDT AUG 13, 2026
Overcast 64°F
Feels Like:	65°F
Dewpoint:	61°F
Rel. Hum.:	90%
Visibility:	10 miles
Wind:	WNW at 3 mph
Pressure:	29.79 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 2026 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Partly sunny with a slight chance of thunderstorms. Showers likely, mainly this morning. Highs in the lower 80s. Light and variable winds. Chance of rain 70 percent.

TONIGHT
Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. Light and variable winds. Chance of rain 20 percent.

FRIDAY
Sunny. Highs in the lower 80s. Northwest winds around 10 mph.

FRIDAY NIGHT
Mostly clear. Lows in the upper 50s. Light and variable winds.

SATURDAY
Mostly sunny. Highs in the lower 80s. Light and variable winds.

SATURDAY NIGHT
Mostly clear. Lows in the upper 50s.

SUNDAY
Partly sunny. Highs around 80.

SUNDAY NIGHT
Showers likely. Lows in the lower 60s. Chance of rain 70 percent.

MONDAY
Showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 60 percent.

MONDAY NIGHT
Mostly clear. Lows in the lower 60s.

TUESDAY
Mostly sunny. Highs in the lower 80s.

TUESDAY NIGHT
Mostly clear. Lows in the lower 60s.

WEDNESDAY
Mostly sunny. Highs in the lower 80s.

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 PM EDT 8/12/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
13 AUG 2026

2 AM

66°

66°

Mostly Cloudy

39%
RAIN
.5–1 in

0% Thunder
( 17% severe)

W 2

84%

61°

Low 63°

5 AM

64°

65°

Partly Cloudy

W 3

93%

62°

High 84°

8 AM

67°

67°

Mostly Cloudy

16%
RAIN
<.01 in

0% Thunder
( 13% severe)

WSW 3

87%

63°

Partly Cloudy

Chance of Rain

11 AM

77°

79°

Partly Cloudy

W 6

62%

63°

2 PM

80°

81°

Partly Cloudy

37%
RAIN
***

0% Thunder
( 27% severe)

WNW 7

56%

63°

5 PM

79°

81°

Partly Cloudy

WNW 7

58%

63°

8 PM

73°

73°

Clear

2%

0% Thunder
( 6% severe)

WNW 5

68%

62°

11 PM

67°

67°

Clear

NW 6

78%

60°

Friday
14 AUG 2026

2 AM

64°

64°

Clear

1%

0% Thunder
( 0% severe)

WNW 7

84%

59°

Low 61°

5 AM

62°

61°

Clear

WNW 8

87%

58°

High 83°

8 AM

66°

66°

Clear

0%

0% Thunder
( 0% severe)

WNW 8

75%

58°

Clear

11 AM

77°

79°

Partly Cloudy

NW 9

47%

55°

2 PM

81°

80°

Clear

4%

0% Thunder
( 2% severe)

NW 10

38%

53°

5 PM

80°

80°

Clear

NW 10

38%

52°

8 PM

72°

72°

Clear

3%

0% Thunder
( 1% severe)

NW 7

51%

53°

11 PM

65°

65°

Partly Cloudy

NNW 6

68%

54°


PORTSMOUTH, NH extended weather forecast
Saturday 15 AUG 2026	Sunday 16 AUG 2026	Monday 17 AUG 2026	Tuesday 18 AUG 2026	Wednesday 19 AUG 2026
Low 57°	Low 59°	Low 63°	Low 61°	Low 61°
High 77°	High 77°	High 78°	High 78°	High 80°

Clear 3% Rain	Mostly Cloudy 46% Rain	Overcast 70% Rain	Partly Cloudy 30% Rain	Overcast 32% Rain

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 © 2026 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