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
7:55 AM EDT SEP 27, 2026
Overcast Light Rain Mist 57°F
Feels Like:	53°F
Dewpoint:	55°F
Rel. Hum.:	93%
Visibility:	1 1/2 miles
Wind:	NNE at 17 mph, gusts to 29
Pressure:	29.87 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
Rain. Highs in the upper 50s. Northeast winds 15 to 25 mph with gusts up to 45 mph. Chance of rain near 100 percent.

TONIGHT
Rain. Lows in the lower 50s. Northeast winds 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent.

MONDAY
Rain likely in the morning, then showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

MONDAY NIGHT
Showers. Lows around 50. Northeast winds 10 to 15 mph. Chance of rain 90 percent.

TUESDAY
Mostly cloudy. A chance of showers in the morning. Highs in the lower 60s. North winds around 10 mph. Chance of rain 40 percent.

TUESDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s.

WEDNESDAY
Partly sunny. Highs in the upper 60s.

WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 50s.

THURSDAY
Partly sunny. Highs in the mid 70s.

THURSDAY NIGHT
Partly cloudy. Lows around 60.

FRIDAY
Partly sunny. Highs in the lower 70s.

FRIDAY NIGHT
Partly cloudy. Lows around 50.

SATURDAY
Partly sunny. Highs in the mid 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 PM EDT 9/26/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
27 SEP 2026

2 AM

54°

49°

Mostly Cloudy

100%
RAIN
***

0% Thunder
( 14% severe)

NE 20

100%

54°

Low 53°

5 AM

54°

48°

Mostly Cloudy

NE 23

100%

54°

High 60°

8 AM

54°

49°

Mostly Cloudy

97%
RAIN
***

0% Thunder
( 12% severe)

NE 22

100%

54°

Mostly Cloudy

Rain

Windy

11 AM

58°

54°

Mostly Cloudy

ENE 23

90%

55°

2 PM

59°

55°

Mostly Cloudy

95%
RAIN
***

0% Thunder
( 18% severe)

NE 23

87%

55°

5 PM

58°

54°

Mostly Cloudy

NE 23

87%

54°

8 PM

55°

50°

Mostly Cloudy

96%
RAIN
***

0% Thunder
( 15% severe)

NE 20

100%

55°

11 PM

55°

51°

Overcast

NE 17

100%

55°

Monday
28 SEP 2026

2 AM

54°

49°

Overcast

92%
RAIN
***

0% Thunder
( 8% severe)

NE 17

100%

54°

Low 52°

5 AM

54°

49°

Overcast

NE 18

100%

54°

High 59°

8 AM

53°

48°

Mostly Cloudy

83%
RAIN
***

0% Thunder
( 7% severe)

NE 16

100%

53°

Mostly Cloudy

Rain Likely

Breezy

11 AM

57°

53°

Mostly Cloudy

NE 17

90%

54°

2 PM

57°

53°

Mostly Cloudy

85%
RAIN
***

0% Thunder
( 15% severe)

NE 18

86%

53°

5 PM

56°

52°

Mostly Cloudy

NE 16

86%

52°

8 PM

54°

50°

Mostly Cloudy

76%
RAIN
>2 in

0% Thunder
( 11% severe)

NNE 13

100%

54°

11 PM

54°

51°

Mostly Cloudy

NNE 10

100%

54°


PORTSMOUTH, NH extended weather forecast
Tuesday 29 SEP 2026	Wednesday 30 SEP 2026	Thursday 1 OCT 2026	Friday 2 OCT 2026	Saturday 3 OCT 2026
Low 52°	Low 53°	Low 54°	Low 58°	Low 47°
High 62°	High 70°	High 77°	High 76°	High 61°

Overcast 89% Rain	Overcast 36% Rain	Partly Cloudy 23% Rain	Partly Cloudy 26% Rain	Partly Cloudy 19% 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