PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
6:55 PM EDT OCT 29, 2025
Overcast 50°F
Feels Like:	50°F
Dewpoint:	41°F
Rel. Hum.:	71%
Visibility:	10 miles
Wind:	Calm
Pressure:	30.17 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

REST OF TONIGHT
Mostly cloudy. Lows in the upper 30s. Light and variable winds.

THURSDAY
Cloudy. A slight chance of showers in the morning, then a chance of rain in the afternoon. Highs in the upper 50s. Northeast winds 10 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of rain 40 percent.

THURSDAY NIGHT
Rain. Lows around 50. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.

FRIDAY
Mostly cloudy with rain in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the lower 60s. Southeast winds 10 to 15 mph, becoming southwest in the afternoon. Gusts up to 30 mph. Chance of rain 90 percent.

FRIDAY NIGHT
Partly cloudy. A chance of showers in the evening. Lows in the lower 40s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 30 percent.

SATURDAY
Partly sunny. Highs in the mid 50s.

SATURDAY NIGHT
Mostly clear. Lows in the mid 30s.

SUNDAY
Mostly sunny. Highs in the lower 50s.

SUNDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 30s.

MONDAY
Partly sunny. Highs in the upper 50s.

MONDAY NIGHT
Partly cloudy with a 40 percent chance of showers. Lows in the lower 40s.

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

TUESDAY NIGHT
Mostly clear. 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 7:00 AM EST 10/29/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
29 OCT 2025

1 PM

52°

48°

Mostly Cloudy

4%

0% Thunder
( 0% severe)

NE 13

61%

39°

High 53°

4 PM

51°

47°

Mostly Cloudy

NE 10

66%

40°

Mostly Cloudy

7 PM

46°

43°

Mostly Cloudy

4%

0% Thunder
( 0% severe)

NE 6

83%

41°

10 PM

45°

44°

Mostly Cloudy

NNE 3

86%

41°

Thursday
30 OCT 2025

1 AM

44°

42°

Mostly Cloudy

6%

0% Thunder
( 0% severe)

NNE 3

86%

40°

Low 40°

4 AM

43°

39°

Mostly Cloudy

NNE 6

86%

39°

High 58°

7 AM

44°

40°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 2% severe)

NNE 7

89%

41°

Overcast

Rain Likely

10 AM

51°

47°

Mostly Cloudy

ENE 10

77%

44°

1 PM

54°

50°

Overcast

61%
RAIN
.1–.25 in

0% Thunder
( 2% severe)

E 14

77%

47°

4 PM

54°

50°

Overcast

E 15

83%

49°

7 PM

53°

49°

Overcast

98%
RAIN
***

0% Thunder
( 4% severe)

E 13

96%

52°

10 PM

54°

50°

Overcast

E 13

96%

53°

Friday
31 OCT 2025

1 AM

54°

50°

Overcast

95%
RAIN
***

0% Thunder
( 14% severe)

E 13

100%

54°

Low 50°

4 AM

55°

52°

Overcast

E 13

96%

54°

High 63°

7 AM

56°

53°

Mostly Cloudy

47%
RAIN
***

0% Thunder
( 5% severe)

ESE 10

96%

55°

Mostly Cloudy

Chance of Rain

10 AM

60°

58°

Mostly Cloudy

SW 13

78%

53°

1 PM

61°

59°

Mostly Cloudy

23%
RAIN
.1–.25 in

0% Thunder
( 3% severe)

WSW 16

65%

49°

4 PM

58°

54°

Partly Cloudy

WSW 17

60%

44°

7 PM

51°

46°

Mostly Cloudy

WSW 15

71%

42°


PORTSMOUTH, NH extended weather forecast
Saturday 1 NOV 2025	Sunday 2 NOV 2025	Monday 3 NOV 2025	Tuesday 4 NOV 2025	Wednesday 5 NOV 2025
Low 42°	Low 33°	Low 33°	Low 37°	Low 34°
High 54°	High 51°	High 51°	High 48°	High 50°

Partly Cloudy 30% Rain	Clear 8% Rain	Partly Cloudy 15% Rain	Overcast 58% Rain	Partly Cloudy 22% Rain

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