PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions
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  03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

PORTSMOUTH, NH
Current Weather
7:55 PM EDT JUN 11, 2026
Broken Clouds
77°F
Feels Like: 79°F
Dewpoint: 68°F
Rel. Hum.: 74%
Visibility: 10 miles
Wind: SE at 7 mph
Pressure: 29.66 inches
Last 72 hours

Local Area Snow Depth

New Hampshire Current Weather

New Hampshire MOS Forecast Weather


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(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. A slight chance of showers with isolated thunderstorms in the evening. Patchy fog. Humid with lows in the mid 60s. Light and variable winds. Chance of rain 20 percent.
FRIDAY
Patchy fog in the morning. Partly sunny with a 20 percent chance of showers. Humid with highs in the mid 80s. Light and variable winds. Heat index values in the lower 90s in the afternoon.
FRIDAY NIGHT
Partly cloudy. Areas of fog. A chance of showers after midnight. Humid with lows in the lower 60s. Light and variable winds. Chance of rain 50 percent.
SATURDAY
Mostly sunny. Warm with highs in the upper 80s. Light and variable winds.
SATURDAY NIGHT
Mostly clear. Lows in the lower 60s.
SUNDAY
Partly sunny. Warm with highs in the mid 80s.
SUNDAY NIGHT
Showers likely. Lows in the lower 60s. Chance of rain 70 percent.
MONDAY
Showers likely in the morning. Highs in the lower 80s. Chance of rain 60 percent.
MONDAY NIGHT
Partly cloudy. Lows in the upper 50s.
TUESDAY
Partly sunny. Highs around 80.
TUESDAY NIGHT
Partly cloudy. Lows in the upper 50s.
WEDNESDAY
Partly sunny. Highs around 80.

  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  6/11/2026
Thursday
11 JUN 2026		 PORTSMOUTH, NH 03803 weather forecast Day 1, 12 hours 2 PM 87° 92° Partly Cloudy 18%
RAIN
<.01 in		 0% Thunder
( 17% severe)		 ESE   5 57% 70°
High 88° PORTSMOUTH, NH 03803 weather forecast Day 1, 15 hours 5 PM 83° 88° Partly Cloudy SE   6 70% 72°
Partly Cloudy



 PORTSMOUTH, NH 03803 weather forecast Day 1, 18 hours 8 PM 77° 79° Partly Cloudy 15%
RAIN
<.01 in		 0% Thunder
( 13% severe)		 SSE   3 79% 70°
PORTSMOUTH, NH 03803 weather forecast Day 1, 21 hours 11 PM 72° 72° Partly Cloudy   CALM 90% 69°
Friday
12 JUN 2026		 PORTSMOUTH, NH 03803 weather forecast Day 2, 0 hours 2 AM 70° 70° Mostly Cloudy 9%

 0% Thunder
( 4% severe)		   CALM 90% 67°
Low 68° PORTSMOUTH, NH 03803 weather forecast Day 2, 3 hours 5 AM 68° 68° Partly Cloudy   CALM 93% 66°
High 87° PORTSMOUTH, NH 03803 weather forecast Day 2, 6 hours 8 AM 73° 73° Mostly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 9% severe)		   CALM 84% 68°

Mostly Cloudy



 PORTSMOUTH, NH 03803 weather forecast Day 2, 9 hours 11 AM 83° 87° Mostly Cloudy ESE   5 63% 69°
PORTSMOUTH, NH 03803 weather forecast Day 2, 12 hours 2 PM 82° 85° Partly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 17% severe)		 ESE   8 63% 68°
PORTSMOUTH, NH 03803 weather forecast Day 2, 15 hours 5 PM 78° 80° Partly Cloudy ESE   8 74% 69°
PORTSMOUTH, NH 03803 weather forecast Day 2, 18 hours 8 PM 71° 71° Mostly Cloudy 29%
RAIN
<.01 in		 0% Thunder
( 18% severe)		 E   5 84% 66°
PORTSMOUTH, NH 03803 weather forecast Day 2, 21 hours 11 PM 66° 66° Mostly Cloudy   CALM 93% 64°
Saturday
13 JUN 2026		 PORTSMOUTH, NH 03803 weather forecast Day 3, 0 hours 2 AM 64° 66° Mostly Cloudy 17%
RAIN
<.01 in		 0% Thunder
( 9% severe)		   CALM 97% 63°
Low 62° PORTSMOUTH, NH 03803 weather forecast Day 3, 3 hours 5 AM 63° 64° Partly Cloudy   CALM 97% 62°
High 87° PORTSMOUTH, NH 03803 weather forecast Day 3, 6 hours 8 AM 68° 68° Partly Cloudy 2%

 0% Thunder
( 0% severe)		 NW   5 81% 62°

Partly Cloudy



 PORTSMOUTH, NH 03803 weather forecast Day 3, 9 hours 11 AM 79° 80° Partly Cloudy NW   7 52% 60°
PORTSMOUTH, NH 03803 weather forecast Day 3, 15 hours 2 PM 84° 84° Clear 0%

 0% Thunder
( 1% severe)		 NW   7 43% 59°
PORTSMOUTH, NH 03803 weather forecast Day 3, 18 hours 5 PM 83° 83° Clear WNW   8 46% 60°
PORTSMOUTH, NH 03803 weather forecast Day 3, 21 hours 8 PM 75° 75° Clear     WNW   3 62% 61°

PORTSMOUTH, NH extended weather forecast
Sunday
14 JUN 2026		 Monday
15 JUN 2026		 Tuesday
16 JUN 2026		 Wednesday
17 JUN 2026		 Thursday
18 JUN 2026
Low 61° Low 61° Low 57° Low 57° Low 59°
High 77° High 77° High 73° High 77° High 78°
PORTSMOUTH, NH 03803 weather forecast Day 4 PORTSMOUTH, NH 03803 weather forecast Day 5 PORTSMOUTH, NH 03803 weather forecast Day 6 PORTSMOUTH, NH 03803 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
20% Rain		 Overcast
39% Rain		 Partly Cloudy
29% Rain		 Mostly Cloudy
24% Rain		 Mostly Cloudy
32% Rain
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