Weather Forecast for Portsmouth (US)

New Hampshire, United States of America

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Overcast

Current Weather - Portsmouth (US): 2°C

New Hampshire, United States of America

Overcast

Feels like -1°C

Wind

11 km/h WNW

Humidity

64%

Pressure

1001 mb

UV Index

0

Visibility

16 km

Moderate or heavy snow showers

Moderate or heavy snow showers

Wednesday, February 11, 2026

High

4°C

Low

-6°C

Rain Chance

64%

Hourly Forecast

Clear -4°C
23:00
Feb 12

Day Statistics

Maximum Wind

21 km/h

Humidity

80%

Precipitation

4 mm

UV Index

0

Visibility

7 km

Rain Chance

64%

Snow Chance

19%

Sun & Moon

Sunrise

06:46 AM

Sunset

05:09 PM

Moonrise

02:54 AM

Moonset

11:15 AM

Moon Phase

Waning Crescent

Moon Illumination

36%

Air Quality

PM2.5

11.4

μg/m³

PM10

12.7

μg/m³

NO₂

12.1

μg/m³

O₃

65.7

μg/m³

SO₂

4

μg/m³

CO

258.1

μg/m³

US EPA Index: 1 GB DEFRA Index: 1