Weather Forecast for Portsmouth (US)

New Hampshire, United States of America

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Overcast

Current Weather - Portsmouth (US): 11°C

New Hampshire, United States of America

Overcast

Feels like 11°C

Wind

4 km/h NW

Humidity

76%

Pressure

1011 mb

UV Index

2

Visibility

16 km

Patchy rain nearby

Patchy rain nearby

Saturday, May 02, 2026

High

10°C

Low

4°C

Rain Chance

88%

Hourly Forecast

Overcast 9°C
19:00
Patchy rain nearby 8°C
20:00
Light rain 8°C
21:00
Patchy light drizzle 8°C
22:00
Mist 8°C
23:00
May 03

Day Statistics

Maximum Wind

9 km/h

Humidity

78%

Precipitation

4 mm

UV Index

2

Visibility

7 km

Rain Chance

88%

Snow Chance

0%

Sun & Moon

Sunrise

05:36 AM

Sunset

07:46 PM

Moonrise

09:16 PM

Moonset

05:34 AM

Moon Phase

Waning Gibbous

Moon Illumination

100%

Air Quality

PM2.5

9.5

μg/m³

PM10

10.4

μg/m³

NO₂

11

μg/m³

O₃

73.9

μg/m³

SO₂

2.6

μg/m³

CO

219.3

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

214.9

Diffuse Radiation

124.56

DNI

187.82

GTI

168.87