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
4:55 PM EDT JUL 29, 2026
Overcast Light Rain Mist 68°F
Feels Like:	68°F
Dewpoint:	66°F
Rel. Hum.:	93%
Visibility:	3 miles
Wind:	ENE at 12 mph
Pressure:	29.71 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

TONIGHT
Showers with a slight chance of thunderstorms. Areas of fog in the evening. Patchy fog after midnight. Some thunderstorms may produce heavy rainfall. Humid with lows in the upper 50s. East winds around 10 mph with gusts up to 25 mph. Chance of rain 90 percent.

THURSDAY
Patchy fog in the morning. Showers likely. A slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall in the morning. Humid with highs in the lower 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

THURSDAY NIGHT
Cloudy. A chance of showers in the evening. Lows around 60. North winds around 10 mph in the evening, becoming light and variable. Chance of rain 50 percent.

FRIDAY
Partly sunny. Humid with highs in the upper 70s. Light and variable winds.

FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.

SATURDAY
Partly sunny. Highs in the lower 80s.

SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s.

SUNDAY
Partly sunny. Highs in the lower 80s.

SUNDAY NIGHT
Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent.

MONDAY
Partly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 30 percent.

MONDAY NIGHT
Partly cloudy with a chance of showers in the evening, then mostly clear after midnight. Lows in the mid 60s. Chance of rain 30 percent.

TUESDAY
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 AM EDT 7/29/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
29 JUL 2026

2 PM

70°

70°

Mostly Cloudy

86%
RAIN
***

0% Thunder
( 15% severe)

E 15

78%

63°

High 71°

5 PM

69°

69°

Mostly Cloudy

E 15

84%

64°

Mostly Cloudy

Rain

8 PM

68°

68°

Mostly Cloudy

99%
RAIN
***

0% Thunder
( 10% severe)

ENE 14

90%

65°

11 PM

65°

65°

Mostly Cloudy

ENE 13

100%

65°

Thursday
30 JUL 2026

2 AM

65°

65°

Mostly Cloudy

95%
RAIN
***

0% Thunder
( 9% severe)

ENE 13

100%

65°

Low 61°

5 AM

64°

63°

Mostly Cloudy

NE 14

100%

64°

High 73°

8 AM

64°

63°

Mostly Cloudy

85%
RAIN
***

0% Thunder
( 13% severe)

NE 14

100%

64°

Overcast

Rain Likely

11 AM

68°

68°

Mostly Cloudy

NE 15

90%

65°

2 PM

68°

68°

Overcast

73%
RAIN
.25–.5 in

0% Thunder
( 19% severe)

NE 15

87%

64°

5 PM

69°

69°

Overcast

NE 13

81%

63°

8 PM

68°

68°

Mostly Cloudy

40%
RAIN
.01–.1 in

0% Thunder
( 6% severe)

NNE 9

84%

63°

11 PM

65°

65°

Mostly Cloudy

N 7

97%

64°

Friday
31 JUL 2026

2 AM

64°

64°

Mostly Cloudy

6%

0% Thunder
( 1% severe)

N 7

100%

64°

Low 61°

5 AM

63°

63°

Mostly Cloudy

N 7

100%

63°

High 81°

8 AM

66°

66°

Mostly Cloudy

5%

0% Thunder
( 3% severe)

N 7

93%

64°

Mostly Cloudy

11 AM

75°

75°

Mostly Cloudy

N 7

71%

65°

2 PM

77°

79°

Partly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 6% severe)

NE 6

67%

65°

5 PM

76°

78°

Partly Cloudy

SE 6

71%

66°

8 PM

71°

71°

Partly Cloudy

S 3

84%

66°


PORTSMOUTH, NH extended weather forecast
Saturday 1 AUG 2026	Sunday 2 AUG 2026	Monday 3 AUG 2026	Tuesday 4 AUG 2026	Wednesday 5 AUG 2026
Low 63°	Low 64°	Low 64°	Low 62°	Low 63°
High 80°	High 76°	High 78°	High 81°	High 82°

Mostly Cloudy 34% Rain	Overcast 51% Rain	Overcast 74% Rain	Partly Cloudy 28% Rain	Partly Cloudy 18% 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