Temperature in degrees Farenheit
| Arlington Municipal | 45 |
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| Bellingham, Bellingham International Airport | 37 |
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| Bremerton, Bremerton National Airport | 39 |
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| Burlington/Mount Vernon, Skagit Regional Airport | 43 |
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| Eastsound, Orcas Island Airport | 46 |
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| Ellensburg, Ellensburg Bowers Field | 36 |
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| Ephrata, Ephrata Municipal Airport | 37 |
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| Everett, Snohomish County Airport | 43 |
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| Fairchild Air Force Base | 30 |
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| Fort Lewis / Gray U. S. Army Airfield | 36 |
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| Friday Harbor, Friday Harbor Airport | 45 |
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| Hanford | 43 |
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| Hoquiam, Bowerman Airport | 45 |
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| Kelso, Kelso-Longview Airport | 43 |
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| Moses Lake, Grant County Airport | 36 |
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| Olympia, Olympia Airport | 36 |
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| Omak, Omak Airport | 34 |
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| Pasco, Tri-Cities Airport | 43 |
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| Port Angeles, William R. Fairchild International Airport | 37 |
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| Pullman / Moscow, Pullman / Moscow Regional Airport | 36 |
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| Quillayute, Quillayute State Airport | 45 |
|---|
| Renton, Renton Municipal Airport | 45 |
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| Seattle, Seattle Boeing Field | 43 |
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| Seattle, Seattle-Tacoma International Airport | 45 |
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| Shelton, Shelton Sanderson Field | 39 |
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| Spokane, Felts Field | 34 |
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| Stampede Pass | 36 |
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| Tacoma / McChord Air Force Base | 37 |
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| Tacoma, Tacoma Narrows Airport | 43 |
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| Vancouver, Pearson Field Airport | 43 |
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| Walla Walla, Walla Walla Regional Airport | 39 |
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| Wenatchee, Pangborn Memorial Airport | 36 |
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| Whidbey Island, Naval Air Station | 43 |
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