New Hampshire weather alerts - Weather Alert Watch

Extreme Heat Warning 2026-07-01 17:44 UTC Ends in 53h

Extreme Heat Warning for Southern Oxford; Interior York; Central Interior Cumberland +15 more

Heat related illnesses increase significantly during extreme heat and high humidity events.

WhatDangerously hot conditions with heat index values up to 110.WherePortions of southwest and western Maine and central, northern, and southern...WhenUntil 8 PM EDT Friday.

Moderate ME, NH

Heat Advisory 2026-07-01 17:44 UTC Ends in 29h

Heat Advisory for Northern Oxford; Northern Franklin; Central Somerset +3 more

Hot temperatures and high humidity may cause heat illnesses.

WhatHeat index values up to 100.WhereIn Maine, Central Somerset, Northern Franklin, and Northern Oxford Counties....WhenUntil 8 PM EDT Thursday.

Unknown NH

Air Quality Alert 2026-06-30 19:35 UTC Ends in 8h

Air Quality Alert for Interior Rockingham; Coastal Rockingham

The New Hampshire Department of Environmental Services has issued a Air Quality Alert for ozone from 10 AM to 10 PM EDT Wednesday. The New Hampshire Department of Environmental Services is predicting unhealthy air quality for sensitive individuals in the...

WhatAir Quality AlertWhereInterior Rockingham; Coastal RockinghamWhenEnds in 8h

New Hampshire alerts

Extreme Heat Warning for Southern Oxford; Interior York; Central Interior Cumberland +15 more

Heat Advisory for Northern Oxford; Northern Franklin; Central Somerset +3 more

Air Quality Alert for Interior Rockingham; Coastal Rockingham