Weather forecast in New Castle (NH)

This data display current weather and forecast for the coming days in New Castle. In addition to temperature, wind, humidity and pressure, we include data on the probability of precipitation so you can have all the information about your destination before your trip.

New Castle current temperature and weather

September 5, 2025

Night
64.4°F Feels like: 64.4°F	Cloudy
	Wind: 6.9 mph (11.2 Km/h) S Pressure: 29.88 inHg (1012 hPa) Humidity: 91%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 0
Morning
66.2°F Feels like: 66.2°F	Overcast
	Wind: 6.3 mph (10.1 Km/h) SW Pressure: 29.93 inHg (1013 hPa) Humidity: 96%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 1.3
Day
81.1°F Feels like: 85.5°F	Sunny
	Wind: 8.1 mph (13 Km/h) SE Pressure: 29.89 inHg (1012 hPa) Humidity: 65%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 1.9
Evening
72.9°F Feels like: 77°F	Clear
	Wind: 12.3 mph (19.8 Km/h) S Pressure: 29.93 inHg (1013 hPa) Humidity: 78%	Precip. prob.: 0% Visibility: 6 mi (10 km) UV index: 0

Marine weather forecast New Castle

The graphs show wave heights and directions, as well as wind speed and direction in New Castle for the coming days. Click on the sea state chart for more details

In order for you to be able to estimate what the weather is like in New Castle throughout the year, we provide monthly data for the last few years. Select the month you are interested in.

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

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Our report for New Castle is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.