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 20, 2025
Broken Clouds 57°F
Feels Like:	56°F
Dewpoint:	54°F
Rel. Hum.:	90%
Visibility:	10 miles
Wind:	SSE at 7 mph
Pressure:	29.66 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
Partly cloudy. Lows in the upper 40s. Southwest winds 10 to 15 mph with gusts up to 30 mph.

TUESDAY
Mostly sunny. Highs in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

TUESDAY NIGHT
Mostly clear with a slight chance of showers in the evening, then mostly cloudy with showers likely after midnight. Lows around 50. South winds around 10 mph. Chance of rain 70 percent.

WEDNESDAY
Showers. Highs in the lower 60s. South winds around 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.

WEDNESDAY NIGHT
Partly cloudy with showers likely in the evening, then mostly clear after midnight. Lows in the lower 40s. Southwest winds around 10 mph in the evening, becoming light and variable. Chance of rain 60 percent.

THURSDAY
Mostly sunny. A chance of showers in the afternoon. Highs around 60. Chance of rain 30 percent.

THURSDAY NIGHT
Partly cloudy in the evening, then clearing. Lows around 40.

FRIDAY
Mostly sunny. Highs in the upper 50s.

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

SATURDAY
Partly sunny. Highs in the upper 50s.

SATURDAY NIGHT
Partly cloudy. Lows in the mid 30s.

SUNDAY
Partly sunny. Highs in the mid 50s.

SUNDAY 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 10/20/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
20 OCT 2025

2 PM

62°

60°

Overcast

88%
RAIN
***

0% Thunder
( 12% severe)

SSE 17

87%

58°

High 63°

5 PM

60°

58°

Mostly Cloudy

SSE 14

84%

55°

Mostly Cloudy

Rain Likely

8 PM

55°

52°

Partly Cloudy

25%
RAIN
.01–.1 in

0% Thunder
( 2% severe)

S 9

93%

53°

11 PM

54°

52°

Mostly Cloudy

SSW 8

86%

50°

Tuesday
21 OCT 2025

2 AM

52°

49°

Mostly Cloudy

19%
RAIN
<.01 in

0% Thunder
( 3% severe)

SW 8

86%

48°

Low 48°

5 AM

50°

46°

Partly Cloudy

SW 9

86%

46°

High 66°

8 AM

51°

48°

Partly Cloudy

4%

0% Thunder
( 0% severe)

SW 9

83%

46°

Clear

11 AM

60°

58°

Clear

WSW 12

58%

45°

2 PM

64°

63°

Clear

1%

0% Thunder
( 0% severe)

SW 12

46%

43°

5 PM

62°

61°

Clear

SW 9

52%

44°

8 PM

54°

52°

Partly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 1% severe)

SSW 7

74%

46°

11 PM

53°

51°

Partly Cloudy

SSW 6

80%

47°

Wednesday
22 OCT 2025

2 AM

52°

51°

Mostly Cloudy

68%
RAIN
***

0% Thunder
( 5% severe)

S 5

89%

49°

Low 49°

5 AM

52°

50°

Mostly Cloudy

SSE 6

96%

51°

High 66°

8 AM

54°

52°

Mostly Cloudy

84%
RAIN
***

0% Thunder
( 14% severe)

SSE 7

96%

53°

Mostly Cloudy

Rain Likely

11 AM

60°

58°

Mostly Cloudy

S 10

81%

54°

2 PM

63°

62°

Partly Cloudy

54%
RAIN
1–2 in

0% Thunder
( 5% severe)

SSW 12

65%

51°

5 PM

61°

60°

Partly Cloudy

SSW 10

62%

48°

8 PM

53°

50°

Partly Cloudy

SW 8

80%

47°


PORTSMOUTH, NH extended weather forecast
Thursday 23 OCT 2025	Friday 24 OCT 2025	Saturday 25 OCT 2025	Sunday 26 OCT 2025	Monday 27 OCT 2025
Low 44°	Low 40°	Low 39°	Low 36°	Low 37°
High 59°	High 57°	High 54°	High 54°	High 52°

Partly Cloudy 29% Rain	Partly Cloudy 18% Rain	Partly Cloudy 22% Rain	Partly Cloudy 15% Rain	Partly Cloudy 30% Rain

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