Seasonal temps Tuesday, dangerous heat to come for the PNW

PORTLAND, Ore. (KOIN) -- The final day of seasonal conditions will be felt Tuesday as much of the Portland-Vancouver metro area prepares for dangerous heat later this week.

Mostly sunny and muggy conditions will continue for the Portland area Tuesday. That same feeling will overtake much of western Oregon and southwest Washington. The muggy feeling is due to seasonal temperature, but higher humidity values. So, it will feel sticky and sweaty outside despite temperatures only warming into the mid- to upper-70s.