The National Weather Service issued an extreme heat watch at 11:35 p.m. on Sunday valid for Tuesday between 11 a.m. and 8 p.m ...

An extreme heat warning has prompted the opening of severe weather shelters. The National Weather Service issued an extreme ...

On Sunday at 1:11 p.m. an extreme heat warning was issued by the National Weather Service in effect until Tuesday at 10 p.m.

Daytime cooling shelters are opening up across the Portland and Vancouver metro areas as the heat is expected to rise to ...

The Portland metro area could see three consecutive days of highs in the mid-90s on Sunday, Monday and Tuesday.

With the heat on the way, just a friendly reminder to stay hydrated and check in on anyone who could be vulnerable to extreme heat.

Authorities are urging residents in these eight states to stay out of direct sunlight, especially during peak afternoon hours, to prevent heat-related illnesses. Newsweek contacted the NWS for comment ...