Updated Sunday 5:20 p.m.
Seafair Sunday was a bit cooler around the Sound, with highs for most of the interior topping out in the middle to upper 80s. At the same time, the moisture rolling in from the incoming thundershowers brought in a little bit of cloud cover and touch of humidity; while the thermometers READ cooler than Sunday, the 'feels like' temperature was still more or less 90 degrees due to the stickiness. One way or another, it was still plenty warm!
We'll continue our cooling trend on Monday, with more thundershowers popping up over the Cascade crest and Eastern Washington. The presence of lightning will be monitored closely due to our inherently high fire danger. The marine layer will start to gather near the ocean beaches, and with partly sunny skies, highs will drop into the 70s from LaPush to Long Beach. Along the I-5 corridor, mostly sunny skies will stay in place, but highs will drop to either side of 80 degrees in the urban core.
The coolest temps of the work week will be Tuesday and Wednesday as a trough of low pressure settles in. We'll end up with morning clouds (and even a touch of drizzle near the waterfront) and partial afternoon clearing, and highs will stay in the 70s--much more what we're used to this time of year.
A brief ramp up in the temps takes over on Thursday and Friday--highs will climb back into the 80s for a few more days.
However, if you're not a fan of the heat, next weekend looks like it will provide another respite: cooler clouds pull in on Saturday, and Sunday looks like it will bring a decent shot at a summer soaking. Temperatures will drop into the lower 70s as the precipitation makes a rare August appearance.
Have a great night,
Meteorologist Shannon O'Donnell
The KOMO4 Forecast Team