Record-Breaking Temperatures Observed Across Puget Sound on Sunday SEATTLE — Unseasonably warm weather swept through western Washington on Sunday, with multiple cities in the region shattering historical high-temperature records. SeaTac Airport recorded 81 degrees Fahrenheit, surpassing its previous record of 77 degrees set in 1992. Olympia reached 85 degrees, breaking its old mark of 82 degrees from 1944. Other locations, including Bellingham, Hoquiam, and Quillayute, also set or tied records for their respective areas. The extreme heat was driven by a strengthening ridge of high pressure over western Washington and British Columbia, combined with a developing thermal low pressure system west of the Cascades. This atmospheric setup pushed temperatures into the mid-70s to mid-80s across the region, significantly above the seasonal average of the low 60s. The South Sound, Southwest Interior, and Cascade foothills and valleys experienced the warmest conditions, while areas along Puget Sound remained slightly cooler due to an afternoon sea breeze. Seattle’s temperature of 81 degrees on Sunday marked a new all-time record, surpassing the previous benchmark of 77 degrees. Olympia’s 85-degree reading also set a new record, eclipsing its prior high of 82 degrees. Bellingham hit 76 degrees, breaking its record of 74 degrees from 1992. Hoquiam reached 74 degrees, surpassing its 1956 record of 73 degrees, while Quillayute matched its 1992 record of 83 degrees. Meteorologists noted that the warm trend is expected to continue through Monday, though the intensity of the heat will diminish. While SeaTac Airport is unlikely to break its May 4 high-temperature record of 85 degrees, Seattle is forecast to reach only 79 degrees on Monday.#bellingham #puget_sound #sea_tac_airport #olympia #hoquiam
