Today and tomorrow the region is under the spell of a small but late season heat wave. With an unusually warm August, and stormy I might add, we are followed with this in September. Seatac broke the daily record high today of 93°F, old record was set in 2009 at 87°F.
To compare, in Shoreline today's high was 90°F, in September 11th, 2009 it was 85°F. Possibly the result of how summers work around here during a cold PDO?