There’s another sunny weekend across the Seattle area, followed by the chance of the first drops of rain in nearly a month.
A series of high pressure building over the western side of the country will cause temperatures to rise through Sunday, the National Weather Service said.
Few, if any, clouds on Friday are expected to cause temperatures to rise quickly, with temperatures in the low to mid-80s across the Seattle area, the weather service said.
However, the air mass is still on the dry side, so temperatures are expected to drop into the 50s overnight into Saturday, providing some relief from the heat.
A high pressure ridge is expected to peak on Saturday, causing temperatures to rise a few more degrees, reaching the mid to upper 80s — nearly 15 degrees above normal for this time of year — across the region.
High clouds will also be present Saturday, but they won’t do anything to dampen the heat, said Trent Davis, a meteorologist with the Weather Service in Seattle.
There is a 20% to 40% chance that high temperatures will jump above 90 degrees on Saturday in the inland Southwest, especially around areas of southern Puget Sound in Thurston and Mason counties, the weather service said.
Overnight lows will cool back into the 50s heading into Sunday as a high pressure ridge shifts east.
Cloud cover pushing off the coast on Sunday will keep temperatures a little lower — but still in the 80s — across the Seattle area to close out the weekend.
A system drifting from the coast over British Columbia is expected to begin dumping scattered showers in the region Sunday evening into Monday, especially north of Seattle.
Seattle’s biggest chance of rain in the near future with this system will arrive on Monday, “but the amounts will be really light, just a few hundredths – maybe – if we’re lucky – a tenth of an inch of rain. ” “So, there’s not a lot to really help with the drought conditions that we’re seeing, unfortunately.”
Snohomish, Skagit and Whatcom counties, as well as the northern Olympic Peninsula, have a 30% to 50% chance of rain more than a tenth of an inch deep, the weather service said.