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
1:55 PM EDT OCT 4, 2026
Broken Clouds 63°F
Feels Like:	62°F
Dewpoint:	48°F
Rel. Hum.:	58%
Visibility:	10 miles
Wind:	E at 13 mph
Pressure:	30.25 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 2026 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

THIS AFTERNOON
Mostly cloudy. Highs in the lower 60s. East winds around 10 mph.

TONIGHT
Partly cloudy with isolated showers in the evening, then mostly cloudy after midnight. Patchy fog after midnight. Lows in the upper 40s. Light and variable winds. Chance of rain 20 percent.

MONDAY
Patchy fog in the morning. Mostly sunny. Highs in the upper 60s. West winds 10 to 15 mph. Gusts up to 30 mph in the afternoon.

MONDAY NIGHT
Clear. Lows in the lower 40s. West winds around 10 mph with gusts up to 25 mph.

TUESDAY
Sunny. Highs in the upper 50s. West winds 10 to 15 mph with gusts up to 30 mph.

TUESDAY NIGHT
Clear. Lows in the upper 30s.

WEDNESDAY
Mostly sunny. Highs in the mid 60s.

WEDNESDAY NIGHT
Mostly clear. Lows in the upper 40s.

THURSDAY
Mostly sunny. Highs in the lower 70s.

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

FRIDAY
Mostly sunny. Highs in the mid 60s.

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

SATURDAY
Mostly sunny. 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 9/30/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
30 SEP 2026

2 PM

68°

68°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

S 6

68%

57°

High 69°

5 PM

66°

66°

Mostly Cloudy

SSE 7

73%

57°

Mostly Cloudy

8 PM

59°

58°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

S 6

93%

57°

11 PM

57°

57°

Mostly Cloudy

SSW 3

100%

57°

Thursday
1 OCT 2026

2 AM

56°

56°

Mostly Cloudy

2%

0% Thunder
( 0% severe)

SW 3

100%

56°

Low 55°

5 AM

55°

55°

Mostly Cloudy

SW 3

100%

55°

High 79°

8 AM

57°

57°

Mostly Cloudy

3%

0% Thunder
( 0% severe)

WSW 5

96%

56°

Mostly Cloudy

11 AM

71°

71°

Mostly Cloudy

WSW 6

68%

60°

2 PM

77°

79°

Mostly Cloudy

6%

0% Thunder
( 1% severe)

SSW 9

56%

60°

5 PM

76°

78°

Partly Cloudy

SW 9

58%

60°

8 PM

69°

69°

Mostly Cloudy

0%

0% Thunder
( 1% severe)

SW 8

73%

60°

11 PM

67°

67°

Partly Cloudy

SW 8

81%

61°

Friday
2 OCT 2026

2 AM

66°

66°

Partly Cloudy

1%

0% Thunder
( 1% severe)

SW 7

81%

60°

Low 65°

5 AM

66°

66°

Partly Cloudy

SW 8

81%

60°

High 80°

8 AM

66°

66°

Partly Cloudy

4%

0% Thunder
( 1% severe)

SW 8

81%

60°

Mostly Cloudy

Chance of Rain

11 AM

74°

74°

Mostly Cloudy

SW 9

66%

62°

2 PM

79°

80°

Mostly Cloudy

40%
RAIN
.25–.5 in

0% Thunder
( 5% severe)

WSW 10

56%

62°

5 PM

76°

78°

Mostly Cloudy

W 10

64%

63°

8 PM

69°

69°

Mostly Cloudy

W 8

81%

63°


PORTSMOUTH, NH extended weather forecast
Saturday 3 OCT 2026	Sunday 4 OCT 2026	Monday 5 OCT 2026	Tuesday 6 OCT 2026	Wednesday 7 OCT 2026
Low 55°	Low 46°	Low 48°	Low 42°	Low 40°
High 65°	High 60°	High 67°	High 56°	High 59°

Partly Cloudy 35% Rain	Mostly Cloudy 20% Rain	Overcast 45% Rain	Partly Cloudy 31% Rain	Partly Cloudy 20% 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 © 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