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 AM EDT APR 17, 2026
Overcast Mist 48°F
Feels Like:	46°F
Dewpoint:	48°F
Rel. Hum.:	100%
Visibility:	1 1/2 miles
Wind:	SE at 5 mph
Pressure:	29.80 inches
Last 72 hours
Local Area Snow Depth
New Hampshire Current Weather
New Hampshire MOS Forecast Weather

Weather Map

(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

TODAY
Mostly cloudy with a 50 percent chance of showers. Patchy fog. Highs around 60. Light and variable winds, becoming east around 10 mph this afternoon.

TONIGHT
Partly cloudy. Lows in the mid 40s. Light and variable winds.

SATURDAY
Mostly cloudy. Highs around 50. 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
Showers. Highs in the lower 50s. Light and variable winds, becoming west around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 90 percent.

SUNDAY NIGHT
Rain showers in the evening, then mostly clear after midnight. Lows in the lower 30s. Chance of rain 80 percent.

MONDAY
Partly sunny. Highs in the upper 40s.

MONDAY NIGHT
Mostly clear. Lows in the upper 20s.

TUESDAY
Mostly sunny. Highs in the upper 40s.

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

WEDNESDAY
Partly sunny. Highs in the upper 50s.

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

THURSDAY
Partly sunny. Highs in the upper 50s.

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 PM EDT 4/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
17 APR 2026

2 AM

50°

50°

Mostly Cloudy

42%
RAIN
.01–.1 in

0% Thunder
( 5% severe)

ESE 1

93%

48°

Low 49°

5 AM

50°

50°

Mostly Cloudy

WSW 2

93%

48°

High 63°

8 AM

52°

52°

Mostly Cloudy

41%
RAIN
.25–.5 in

0% Thunder
( 9% severe)

NNE 2

93%

50°

Mostly Cloudy

Chance of Rain

11 AM

57°

56°

Mostly Cloudy

NNE 6

83%

52°

2 PM

59°

58°

Mostly Cloudy

20%
RAIN
.01–.1 in

0% Thunder
( 4% severe)

ENE 8

75%

51°

5 PM

59°

58°

Mostly Cloudy

E 6

72%

50°

8 PM

54°

54°

Partly Cloudy

2%

0% Thunder
( 0% severe)

ENE 1

80%

48°

11 PM

51°

51°

Partly Cloudy

N 1

80%

45°

Saturday
18 APR 2026

2 AM

48°

47°

Partly Cloudy

9%

0% Thunder
( 0% severe)

NNE 2

86%

44°

Low 45°

5 AM

47°

46°

Mostly Cloudy

NE 3

89%

44°

High 52°

8 AM

47°

45°

Mostly Cloudy

5%

0% Thunder
( 0% severe)

ENE 5

89%

44°

Mostly Cloudy

11 AM

49°

46°

Mostly Cloudy

ENE 7

80%

43°

2 PM

49°

45°

Mostly Cloudy

5%

0% Thunder
( 0% severe)

ENE 9

74%

41°

5 PM

48°

44°

Mostly Cloudy

E 8

74%

40°

8 PM

45°

44°

Mostly Cloudy

8%

0% Thunder
( 0% severe)

E 3

82%

40°

11 PM

44°

43°

Mostly Cloudy

E 2

86%

40°


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 41°	Low 35°	Low 30°	Low 36°	Low 37°
High 52°	High 52°	High 51°	High 58°	High 59°

Overcast 98% Rain	Partly Cloudy 41% Rain/Snow	Partly Cloudy 16% Rain/Snow	Mostly Cloudy 25% Rain	Partly Cloudy 9% Rain

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