Portland Weather Forecast

Here is your updated Portland Weather Forecast -

Happy (almost) Fall!  Fall officially arrives at 7:29pm today.

We’ve got some big changes to the weather pattern this week.  Monday is the transition day.  You’ll notice more clouds around and cooler daytime highs.  This afternoon will be about 10 degrees cooler than Sunday.  Expect highs in the upper-70s.

A weak front approaches the Coast later today.  This means shower chances increase this evening at the Coast and overnight inland.  There’s a better chance of showers Tuesday.  Highs drop to about 75 degrees Tuesday.

A stronger cold front brings rain and breezy conditions overnight Tuesday into Wednesday morning.  We could see a .25” to .50” of rain in the Willamette Valley.  Along the Coast, rain totals may top 1”.

Steady rain early Wednesday switches to showers and sun breaks.  This unsettled, showery pattern continues through the end of the week.

Sally Showman | KOIN 6 Meteorologist
sally.showman@koin.com | Follow me on Facebook or Twitter