Temperature at SEA Airport hits 70 degrees for the first time in 2026 The temperature at Seattle-Tacoma International Airport hit 70 degrees shortly before 3 p.m. on Monday.Share this: WEST SEATTLE WEATHER: Warm day, but far below recordDateApril 18, 2026In relation toMuslim NewsSouth Sound forecast to warm into 80s with record heat in reachDateMay 1, 2026In relation toKing 5 NewsRecord-breaking temperatures expected across Puget Sound on SundayDateMay 3, 2026In relation toKing 5 News