Updated Saturday 4:45 p.m.
It seems it wouldn't be a holiday weekend without a little rain here in Western Washington. After a warm and dry summer, it's nice to have a good soaking to clean things up a bit (and who isn't happy to take a break from the watering-the-yard chore that has dominated the last 8 weeks of our lives?). However, those that saved the big camping and biking trips for Labor Day Weekend are probably less than thrilled, so let's see how things will play out for the remainder of your days off...
The system that came through Saturday morning is on its way over to Montana, so we're just serving up some leftover showers for the rest of our Saturday night. Most of the lingering spots of rain will hover near the foothills of the Cascades. Partly starry skies will be seen through the overcast from time to time, and lows will bottom out in the 50s by dawn.
Sunday will still feature a few more scattered showers, especially over the Cascades and closer to the B.C. border. Otherwise, look for Sunday to be a bit brighter and warmer--better for outdoor activities by far compared to soggy Saturday. Highs will inch back up toward 70 degrees in the warmer locales. You won't need your bumbershoot at Bumbershoot nearly as often on Sunday, either.
The next weekend disturbance comes in Sunday night, with most of the rain falling after dark and into the wee hours of Monday morning. If you're camping, hopefully your tent lives up to its waterproof advertising! Labor Day afternoon should be mainly dry, with isolated showers hanging out closer to Canada and the Cascades again. Highs on Monday top out on either side of 70.
Another weak storm moves in on Tuesday, so look for some rain at times throughout the second of September. The third, on Wednesday, looks a bit drier, but we'll still see a few pockets of showers pass by. Those seem to be the two big back-to-school days this week---the kids may be able to pull of those new fall ensembles that are often to warm for the first day of school, as highs will stay in the upper 60s thanks to the occasional shower action.
Thereafter, warmer sunshine makes a come back by Thursday and Friday, and highs will climb back into the seasonable 70s. By Saturday, high pressure should be strong enough to get the Sound back toward 80 degrees--at least one more warm late summer day is on the horizon.
Have a great holiday weekend,
Meteorologist Shannon O'Donnell
The KOMO4 Forecast Team