PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
1:55 PM EDT APR 29, 2026
Overcast 48°F
Feels Like:	44°F
Dewpoint:	43°F
Rel. Hum.:	83%
Visibility:	10 miles
Wind:	ENE at 9 mph
Pressure:	30.01 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

THIS AFTERNOON
Mostly cloudy. Highs in the lower 50s. Northeast winds around 10 mph.

TONIGHT
Cloudy. Isolated showers in the evening, then showers likely after midnight. Patchy fog. Lows in the mid 40s. Light and variable winds. Chance of rain 70 percent.

THURSDAY
Patchy fog in the morning. Rain. Highs in the lower 50s. Light and variable winds. Chance of rain near 100 percent.

THURSDAY NIGHT
Mostly cloudy with scattered showers in the evening, then partly cloudy after midnight. Lows in the lower 40s. Light and variable winds, becoming northwest around 10 mph after midnight. Chance of rain 40 percent.

FRIDAY
Partly sunny. Highs in the upper 50s. West winds around 10 mph with gusts up to 20 mph.

FRIDAY NIGHT
Mostly clear. Chance of frost in sheltered locations after midnight. Lows in the upper 30s.

SATURDAY
Partly sunny. Highs in the mid 50s.

SATURDAY NIGHT
Mostly cloudy in the evening, then partly cloudy with a chance of showers after midnight. Lows in the upper 30s. Chance of rain 30 percent.

SUNDAY
Partly sunny. A chance of showers in the morning. Highs in the mid 50s. Chance of rain 30 percent.

SUNDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the upper 30s.

MONDAY
Partly sunny. Highs in the lower 60s.

MONDAY NIGHT
Partly cloudy. A chance of showers after midnight. Lows in the mid 40s. Chance of rain 30 percent.

TUESDAY
Partly sunny in the morning, then becoming mostly cloudy. A 40 percent chance of showers. Highs in the lower 60s.

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 4/29/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
29 APR 2026

2 PM

51°

48°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 0% severe)

E 9

68%

41°

High 52°

5 PM

49°

45°

Mostly Cloudy

ENE 8

77%

42°

Mostly Cloudy

Rain Likely

8 PM

46°

43°

Mostly Cloudy

52%
RAIN
.1–.25 in

0% Thunder
( 0% severe)

ENE 6

86%

42°

11 PM

46°

44°

Mostly Cloudy

E 5

89%

43°

Thursday
30 APR 2026

2 AM

46°

44°

Mostly Cloudy

92%
RAIN
***

0% Thunder
( 11% severe)

E 5

93%

44°

Low 44°

5 AM

46°

44°

Mostly Cloudy

ESE 5

96%

45°

High 54°

8 AM

47°

44°

Mostly Cloudy

93%
RAIN
***

0% Thunder
( 9% severe)

ESE 6

96%

46°

Mostly Cloudy

Rain

11 AM

50°

48°

Mostly Cloudy

SE 5

86%

46°

2 PM

51°

50°

Mostly Cloudy

65%
RAIN
***

0% Thunder
( 7% severe)

ESE 5

83%

46°

5 PM

52°

51°

Mostly Cloudy

ENE 5

83%

47°

8 PM

49°

48°

Mostly Cloudy

25%
RAIN
.01–.1 in

0% Thunder
( 1% severe)

NNW 3

89%

46°

11 PM

48°

46°

Mostly Cloudy

NW 5

83%

43°

Friday
1 MAY 2026

2 AM

46°

42°

Partly Cloudy

5%

0% Thunder
( 0% severe)

WNW 7

86%

42°

Low 42°

5 AM

44°

40°

Partly Cloudy

WNW 7

82%

39°

High 60°

8 AM

46°

42°

Partly Cloudy

4%

0% Thunder
( 2% severe)

WNW 8

71%

37°

Partly Cloudy

11 AM

54°

51°

Partly Cloudy

W 9

47%

34°

2 PM

57°

55°

Partly Cloudy

6%

0% Thunder
( 6% severe)

W 10

40%

33°

5 PM

57°

55°

Partly Cloudy

W 9

39%

32°

8 PM

50°

48°

Partly Cloudy

W 5

50%

32°


PORTSMOUTH, NH extended weather forecast
Saturday 2 MAY 2026	Sunday 3 MAY 2026	Monday 4 MAY 2026	Tuesday 5 MAY 2026	Wednesday 6 MAY 2026
Low 40°	Low 39°	Low 39°	Low 46°	Low 46°
High 59°	High 58°	High 62°	High 65°	High 62°

Partly Cloudy 29% Rain	Mostly Cloudy 23% Rain	Partly Cloudy 23% Rain	Overcast 43% Rain	Mostly Cloudy 53% Rain

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