Portsmouth, NH

Weather

As ofOct 21, 2026 2:28 PM

Current Temperature

57degrees Fahrenheit

Feels like:57°

Hi:57°Lo:41°

Cloudy

Loading Weather Radar Map...

Portsmouth, NH weather radar map

Feels like: 57°
Daily Rain: 0"
Dew point: 40°
Monthly Rain: 2.17"
Humidity: 53%
Avg. Wind: NNE 3 mph
Pressure: 30.25"
Wind Gust: 14 mph
Sunrise: 7:03 AM
Moon: Waxing Gibbous
Sunset: 5:51 PM
UV Index: 3 (Moderate)

Today
Hi
Partly sunny. Highs in the lower 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
Tonight
Lo
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 40. North winds around 10 mph.

Portsmouth, NH 10-day weather forecast

FEATURED VIDEOS

Arizona Faces Tornado, Large Hail and Flash Flood Threats — AZ Faces Tornado Large Hail and Flood Threats

Air Quality Index: 16|Excellent
Top Triggers:: pm25

View Today's Air Quality details for Portsmouth, NH

Pollen Count: 1.5|Low
Predominant Pollen:: Ragweed

Portsmouth, NH Pollen forecast details

Closest strike in the last 30 minutes:285.7 miles

No Lightning Nearby

Portsmouth, NH real-time lightning alerts & live Map

Loading Top Weather Stories

loading ad...

Hurricane Tracker

Allergy Forecast

Cold & Flu

Fire Updates

Traffic Cameras

Traffic Cameras

Outdoor Sports Guide