Portsmouth Weather Forecasts. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Portsmouth area.

An extreme heat warning has been issued for much of New Hampshire as temperatures are expected to break records.

The National Weather Service says scattered showers will occur throughout the Granite State this week, while the weekend ...

Portsmouth, NH Weather History star_ratehome. 68 ° F Portsmouth Intl at Pease Airport Station | Report. Report Station. Thank you for reporting this station. We will review the data in question.

When will it snow today in NH? According to the NWS, snow is expected to begin mid-morning across the state. The snow's intensity will quickly increase, falling the heaviest - up to an inch per ...