Summer is winding down but it’s still bringing above-normal temperatures that could break a heat record this week.
The highest temperatures will be 10 to 20 degrees above average, the National Weather Service said Monday. Wednesday is expected to be the warmest day at 87 degrees, though there’s a chance it could creep into the low 90s.
If that happens, it would break a 2009 record for Sept. 11, when the mercury hit 87 at Sea-Tac Airport.
Tuesday’s record is 85 degrees – set in 2007. With forecasters predicting a high of 81, that record appears safe.
Nevertheless, summer is making itself felt before it officially ends Sept. 21. Forecasters said the normal high temperature in September is 73.
“Summer’s not quite over yet,” Weather Service meteorologist Jeff Michalski said.
He attributed the warmer weather to a high pressure system and low level winds that are turning offshore, meaning cool marine air isn’t sweeping through the region.
Weekend forecasts show an incoming system that could bring onshore winds and cooler weather, with highs in the 70s.
“We’re still going to be warm and above normal for the weekend,” Michalski said.
With the warm forecast, Metro Parks Tacoma decided to open the spraygrounds at Wright Park all week instead of just the weekend. They said other spraygrounds would not be available because the agency needed to focus on “maintenance, repairs and weatherization throughout the system in preparation for fall and winter.”
Stacia Glenn: 253-597-8653