PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
5:55 PM EDT AUG 7, 2026
Scattered Clouds 86°F
Feels Like:	93°F
Dewpoint:	73°F
Rel. Hum.:	65%
Visibility:	10 miles
Wind:	ESE at 7 mph
Pressure:	29.99 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
Mostly clear in the evening, then mostly cloudy with a chance of showers with isolated thunderstorms after midnight. Patchy fog after midnight. Humid with lows in the upper 60s. Light and variable winds. Chance of rain 40 percent. Heat index values in the mid 90s early in the evening.

SATURDAY
Mostly cloudy in the morning, then becoming partly sunny. Patchy fog in the morning. A chance of showers. Scattered thunderstorms in the afternoon. Humid with highs in the mid 80s. Light and variable winds. Chance of rain 40 percent. Heat index values around 90.

SATURDAY NIGHT
Partly cloudy. Patchy fog. Humid with lows in the upper 60s. Light and variable winds.

SUNDAY
Patchy fog in the morning. Mostly sunny. Warm with highs in the upper 80s. Light and variable winds, becoming west around 10 mph in the afternoon. Heat index values in the mid 90s.

SUNDAY NIGHT
Clear. Lows in the mid 60s.

MONDAY
Mostly sunny. Warm with highs in the mid 80s.

MONDAY NIGHT
Partly cloudy. Lows in the upper 60s.

TUESDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the upper 80s. Chance of rain 30 percent.

TUESDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of rain 30 percent.

WEDNESDAY
Partly sunny. Highs in the lower 80s.

WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 60s.

THURSDAY
Partly sunny with a chance of showers. Highs in the lower 80s. Chance of rain 40 percent.

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 8/ 7/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
7 AUG 2026

2 PM

87°

92°

Partly Cloudy

7%

0% Thunder
( 18% severe)

SE 6

57%

70°

High 88°

5 PM

85°

91°

Partly Cloudy

SE 7

65%

72°

Partly Cloudy

8 PM

78°

80°

Partly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 21% severe)

SSE 5

82%

72°

11 PM

74°

74°

Partly Cloudy

SSW 1

90%

71°

Saturday
8 AUG 2026

2 AM

73°

73°

Mostly Cloudy

32%
RAIN
***

0% Thunder
( 17% severe)

CALM

90%

70°

Low 71°

5 AM

72°

72°

Mostly Cloudy

CALM

93%

70°

High 88°

8 AM

73°

73°

Mostly Cloudy

32%
RAIN
.25–.5 in

0% Thunder
( 12% severe)

CALM

90%

70°

Mostly Cloudy

Chance of Rain

11 AM

81°

85°

Mostly Cloudy

SW 5

72%

71°

2 PM

84°

89°

Mostly Cloudy

35%
RAIN
.1–.25 in

0% Thunder
( 32% severe)

SW 7

65%

71°

5 PM

82°

87°

Partly Cloudy

S 7

72%

72°

8 PM

77°

78°

Partly Cloudy

35%
RAIN
***

0% Thunder
( 21% severe)

S 3

87%

73°

11 PM

73°

73°

Mostly Cloudy

SSW 5

97%

72°

Sunday
9 AUG 2026

2 AM

71°

71°

Mostly Cloudy

4%

0% Thunder
( 3% severe)

WSW 5

100%

71°

Low 70°

5 AM

70°

70°

Partly Cloudy

WSW 6

100%

70°

High 90°

8 AM

74°

74°

Clear

5%

0% Thunder
( 3% severe)

W 6

90%

71°

Partly Cloudy

11 AM

84°

88°

Partly Cloudy

W 8

63%

70°

2 PM

88°

91°

Partly Cloudy

12%
RAIN
<.01 in

0% Thunder
( 14% severe)

WSW 10

50%

67°

5 PM

87°

89°

Partly Cloudy

W 10

48%

65°

8 PM

79°

81°

Clear

WNW 7

60%

64°


PORTSMOUTH, NH extended weather forecast
Monday 10 AUG 2026	Tuesday 11 AUG 2026	Wednesday 12 AUG 2026	Thursday 13 AUG 2026	Friday 14 AUG 2026
Low 65°	Low 67°	Low 65°	Low 61°	Low 59°
High 87°	High 88°	High 83°	High 75°	High 77°

Partly Cloudy 9% Rain	Partly Cloudy 31% Rain	Partly Cloudy 25% Rain	Overcast 49% Rain	Partly Cloudy 38% Rain

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