PORTSMOUTH, NH 03803 Weather Forecast & Current Conditions

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03803 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORTSMOUTH, NH Current Weather
4:55 AM EDT OCT 29, 2025
Overcast 45°F
Feels Like:	40°F
Dewpoint:	36°F
Rel. Hum.:	71%
Visibility:	10 miles
Wind:	N at 10 mph
Pressure:	30.20 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 20 percent chance of showers. Highs in the lower 50s. North winds 10 to 15 mph with gusts up to 25 mph.

TONIGHT
Mostly cloudy with a 20 percent chance of showers. Lows around 40. North winds around 10 mph in the evening, becoming light and variable.

THURSDAY
Cloudy. A chance of showers in the morning, then showers likely 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 70 percent.

THURSDAY NIGHT
Rain. Lows in the upper 40s. East winds 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent.

FRIDAY
Mostly cloudy with rain in the morning, then partly sunny with a chance of rain 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. Lows in the lower 40s.

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. A chance of rain showers in the afternoon. Highs in the mid 50s. Chance of rain 40 percent.

MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A 50 percent chance of showers. Lows in the upper 30s.

TUESDAY
Partly sunny with a 50 percent chance of showers. Highs in the mid 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 7:00 PM EST 10/28/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
29 OCT 2025

1 AM

45°

40°

Mostly Cloudy

7%

0% Thunder
( 2% severe)

NNE 9

76%

38°

Low 42°

4 AM

44°

38°

Mostly Cloudy

NNE 12

76%

37°

High 55°

7 AM

43°

37°

Mostly Cloudy

5%

0% Thunder
( 1% severe)

NNE 12

82%

38°

Mostly Cloudy

10 AM

50°

45°

Mostly Cloudy

NNE 13

66%

39°

1 PM

52°

48°

Mostly Cloudy

5%

0% Thunder
( 0% severe)

NE 13

61%

39°

4 PM

51°

47°

Mostly Cloudy

NE 12

66%

40°

7 PM

48°

45°

Mostly Cloudy

9%

0% Thunder
( 0% severe)

NE 7

77%

41°

10 PM

46°

44°

Mostly Cloudy

NNE 5

83%

41°

Thursday
30 OCT 2025

1 AM

44°

41°

Mostly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 0% severe)

N 5

86%

40°

Low 39°

4 AM

43°

39°

Mostly Cloudy

NNE 6

86%

39°

High 58°

7 AM

43°

39°

Mostly Cloudy

24%
RAIN
<.01 in

0% Thunder
( 1% severe)

NNE 7

93%

41°

Mostly Cloudy

Rain Likely

10 AM

52°

48°

Mostly Cloudy

NE 10

74%

44°

1 PM

54°

50°

Mostly Cloudy

66%
RAIN
1–2 in

0% Thunder
( 1% severe)

ENE 13

74%

46°

4 PM

54°

50°

Mostly Cloudy

ENE 15

80%

48°

7 PM

53°

49°

Overcast

95%
RAIN
***

0% Thunder
( 4% severe)

ENE 12

93%

51°

10 PM

54°

51°

Overcast

ENE 12

96%

53°


PORTSMOUTH, NH extended weather forecast
Friday 31 OCT 2025	Saturday 1 NOV 2025	Sunday 2 NOV 2025	Monday 3 NOV 2025	Tuesday 4 NOV 2025
Low 49°	Low 42°	Low 33°	Low 33°	Low 37°
High 56°	High 54°	High 51°	High 51°	High 48°

Overcast 95% Rain	Partly Cloudy 30% Rain	Clear 8% Rain	Partly Cloudy 15% Rain	Overcast 58% Rain

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