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 APR 16, 2026
Overcast 48°F
Feels Like:	44°F
Dewpoint:	45°F
Rel. Hum.:	89%
Visibility:	10 miles
Wind:	E at 8 mph
Pressure:	29.78 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 2025 Hurricanes	PORTSMOUTH, NH 03803 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Cloudy with a chance of showers. Scattered thunderstorms, mainly this evening. Patchy fog after midnight. Lows in the upper 40s. Light and variable winds. Chance of rain 50 percent.

FRIDAY
Mostly cloudy with a 40 percent chance of showers. Patchy fog. Highs in the lower 60s. Light and variable winds, becoming northeast around 10 mph in the afternoon.

FRIDAY NIGHT
Partly cloudy. A slight chance of showers in the evening. Lows in the mid 40s. Light and variable winds. Chance of rain 20 percent.

SATURDAY
Mostly cloudy. Highs in the lower 50s. Light and variable winds, becoming east around 10 mph in the afternoon.

SATURDAY NIGHT
Cloudy. A chance of showers after midnight. Lows in the lower 40s. Light and variable winds. Chance of rain 30 percent.

SUNDAY
Rain. Highs in the mid 50s. Chance of rain 80 percent.

SUNDAY NIGHT
Rain likely in the evening, then partly cloudy with a chance of rain after midnight. Lows in the lower 30s. Chance of rain 70 percent.

MONDAY
Partly sunny. Highs in the mid 40s.

MONDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the upper 20s.

TUESDAY
Mostly sunny. Highs around 50.

TUESDAY NIGHT
Partly cloudy. A chance of showers after midnight. Lows in the upper 30s. Chance of rain 30 percent.

WEDNESDAY
Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the upper 50s. Chance of rain 30 percent.

WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 30s.

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 4/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
16 APR 2026

2 PM

58°

58°

Mostly Cloudy

23%
RAIN
***

0% Thunder
( 12% severe)

E 5

75%

50°

High 59°

5 PM

56°

55°

Mostly Cloudy

ESE 5

74%

48°

Mostly Cloudy

Rain Likely

8 PM

50°

50°

Mostly Cloudy

56%
RAIN
***

0% Thunder
( 19% severe)

ESE 1

86%

46°

11 PM

51°

51°

Mostly Cloudy

N 2

86%

47°

Friday
17 APR 2026

2 AM

52°

52°

Mostly Cloudy

23%
RAIN
.01–.1 in

0% Thunder
( 6% severe)

SSW 2

89%

49°

Low 49°

5 AM

52°

52°

Mostly Cloudy

W 2

93%

50°

High 66°

8 AM

55°

55°

Mostly Cloudy

37%
RAIN
.25–.5 in

0% Thunder
( 10% severe)

NNW 2

90%

52°

Mostly Cloudy

Chance of Rain

11 AM

62°

62°

Mostly Cloudy

NE 5

72%

53°

2 PM

61°

60°

Mostly Cloudy

30%
RAIN
***

0% Thunder
( 3% severe)

ENE 7

70%

51°

5 PM

60°

60°

Mostly Cloudy

ENE 6

67%

49°

8 PM

54°

54°

Mostly Cloudy

8%

0% Thunder
( 0% severe)

ESE 2

80%

48°

11 PM

51°

51°

Partly Cloudy

ENE 1

83%

46°

Saturday
18 APR 2026

2 AM

49°

49°

Partly Cloudy

2%

0% Thunder
( 0% severe)

N 2

89%

46°

Low 46°

5 AM

48°

47°

Mostly Cloudy

NE 3

93%

46°

High 54°

8 AM

49°

47°

Mostly Cloudy

6%

0% Thunder
( 0% severe)

NE 5

86%

45°

Mostly Cloudy

11 AM

51°

49°

Mostly Cloudy

E 6

80%

45°

2 PM

50°

47°

Mostly Cloudy

8%

0% Thunder
( 0% severe)

E 8

77%

43°

5 PM

49°

46°

Mostly Cloudy

E 7

77%

42°

8 PM

45°

44°

Mostly Cloudy

E 3

86%

41°


PORTSMOUTH, NH extended weather forecast
Sunday 19 APR 2026	Monday 20 APR 2026	Tuesday 21 APR 2026	Wednesday 22 APR 2026	Thursday 23 APR 2026
Low 43°	Low 34°	Low 28°	Low 39°	Low 38°
High 55°	High 48°	High 54°	High 61°	High 56°

Overcast 96% Rain	Overcast 59% Rain/Snow	Partly Cloudy 17% Rain/Snow	Mostly Cloudy 26% Rain	Partly Cloudy 23% Rain

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