Air Quality Telemetry System

AQI 24HR Summary

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Sunday, 8/24/2025
This report provides todays AQI forecast for the most current hour and historical AQI 24HR summary data
County Category Site Pollutant Occured AQI
Grays Harbor Good Aberdeen-Division St PM2.5 11 PM 33
Spokane Good Airway Heights-W 12th Ave PM2.5 11 PM 31
Skagit Moderate Anacortes 202 O Avenue PM2.5 11 PM 52
Skagit Good Anacortes-Bartholomew Rd PM2.5 11 PM 49
King Moderate Auburn-29th Street PM2.5 (NPM25) 11 PM 58
King Moderate Bellevue-SE 12th St PM2.5 11 PM 54
Whatcom Good Bellingham-Pacific St PM2.5 11 PM 39
Kitsap Moderate Bremerton-Spruce Ave PM2.5 11 PM 60
Okanogan Good Brewster PM2.5 11 PM 42
Walla Walla Moderate Burbank-Maple St PM10 11 PM 69
Chelan Good Cashmere PM2.5 11 PM 37
Wahkiakum Good Cathlamet PM2.5 11 PM 27
Lewis Good Chehalis-Market Blvd PM2.5 11 PM 24
Chelan Good Chelan-Woodin Ave PM2.5 11 PM 37
Spokane Good Cheney-Turnbull PM2.5 11 PM 48
Asotin Moderate Clarkston-13th St PM2.5 11 PM 78
Kittitas Good Cle Elum PM2.5 11 PM 46
Spokane Moderate Colbert-Greenbluff Rd PM2.5 11 PM 53
Stevens Moderate Colville-E 1st St PM10 11 PM 68
Whatcom Good Custer-Loomis PM2.5 11 PM 42
Snohomish Moderate Darrington-Fir St PM2.5 11 PM 59
Lincoln Good Davenport PM2.5 11 PM 40
Columbia Moderate Dayton-W Main St PM2.5 11 PM 57
King Moderate Des Moines-S 240th St PM2.5 11 PM 58
Douglas Good East Wenatchee-8th St NE PM2.5 11 PM 30
Kittitas Good Ellensburg-Discovery Hall PM2.5 11 PM 42
Kittitas Good Ellensburg-Mountain View Ave PM2.5 11 PM 35
Kittitas Good Ellensburg-N Cora St PM2.5 11 PM 47
Kittitas Good Ellensburg-Ruby St PM2.5 11 PM 47
Chelan Good Entiat PM2.5 11 PM 36
King Good Enumclaw-Mud Mtn. O3 11 PM 50
Snohomish Moderate Everett-12th St PM2.5 11 PM 51
Snohomish Moderate Everett-Beverly Park Rd PM2.5 11 PM 71
Snohomish Moderate Everett-Rucker Ave PM2.5 11 PM 52
King Moderate Federal Way-S 300th St PM2.5 11 PM 58
Benton Moderate Finley-S Finley Rd PM2.5 11 PM 58
Clallam Good Forks-Tillicum Ln PM2.5 11 PM 33
Grant Good George PM2.5 11 PM 33
Klickitat Moderate Goldendale-W Court St PM2.5 11 PM 52
Pacific Good Ilwaco PM2.5 11 PM 32
King Moderate Issaquah-Lake Sammamish PM2.5 11 PM 58
Cowlitz Good Kelso PM2.5 11 PM 27
Benton Good Kennewick-Metaline PM10 11 PM 29
Benton Moderate Kennewick-S Steptoe St PM2.5 11 PM 53
Thurston Moderate Lacey-College St PM2.5 11 PM 51
Whitman Good LaCrosse-Hill St PM2.5 11 PM 47
King Moderate Lake Forest Park-Town Center PM2.5 11 PM 63
Chelan Good Leavenworth-Evans St PM2.5 11 PM 39
Cowlitz Good Longview-30th Ave PM2.5 11 PM 38
Whatcom Good Maple Falls - Azure Way PM2.5 11 PM 47
Snohomish Moderate Marysville-7th Ave PM2.5 11 PM 71
Grant Good Mattawa Wahluke High School PM2.5 11 PM 26
Franklin Good Mesa-Pepiot Way PM2.5 11 PM 43
Grant Good Moses Lake-Balsam St PM2.5 11 PM 44
Lewis Good Mossyrock PM2.5 11 PM 34
Yakima Moderate Moxee-E Seattle Ave PM2.5 11 PM 55
Pierce Moderate Mt Rainier-Jackson Visitors Ctr PM2.5 11 PM 55
Skagit Good Mt Vernon-S Second St PM2.5 11 PM 23
Clallam Good Neah Bay 2-Makah Tribe PM2.5 11 PM 33
Pend Oreille Good Newport-Calispel PM2.5 11 PM 44
King Moderate North Bend-North Bend Way PM2.5 11 PM 54
Island Good Oak Harbor-SW 6th PM2.5 11 PM 14
Okanogan Moderate Omak-Colville Tribe PM2.5 11 PM 55
Skagit Good Padilla Bay PM2.5 11 PM 31
Garfield Moderate Pomeroy-Pataha St PM2.5 11 PM 58
Clallam Good Port Angeles- E 5th St PM2.5 11 PM 49
Jefferson Good Port Townsend-San Juan Ave PM2.5 11 PM 37
Benton Moderate Prosser-Highland Dr PM2.5 11 PM 54
Whitman Moderate Pullman-Dexter SE PM2.5 11 PM 58
Pierce Moderate Puyallup-Pioneer Way E PM2.5 11 PM 56
Grant Good Quincy-3rd Ave NE PM2.5 11 PM 32
Pacific Good Raymond-4th St PM2.5 11 PM 23
Ferry Good Republic PM2.5 11 PM 25
Adams Good Ritzville-Alder St PM2.5 11 PM 39
Whitman Good Rosalia-Josephine St PM2.5 11 PM 46
Grant Good Royal City PM2.5 11 PM 33
King Moderate SeaTac-Sunset Park PM2.5 11 PM 61
King Moderate Seattle-10th & Weller PM2.5 11 PM 81
King Moderate Seattle-16th Ave S PM2.5 11 PM 54
King Moderate Seattle-23rd Ave SW PM2.5 11 PM 58
King Moderate Seattle-5th Ave S PM2.5 11 PM 60
King Moderate Seattle-Beacon Hill PM2.5 11 PM 62
King Moderate Seattle-College Way N PM2.5 11 PM 58
King Moderate Seattle-Duwamish PM2.5 11 PM 60
King Moderate Seattle-Linden Ave N PM2.5 11 PM 58
King Moderate Seattle-NE 127th St PM2.5 11 PM 58
King Moderate Seattle-S Myrtle St PM2.5 11 PM 55
King Moderate Seattle-South Park PM2.5 11 PM 64
Mason Good Shelton-W Franklin PM2.5 11 PM 36
Grant Good Soap Lake-4th Ave SE PM2.5 11 PM 31
Spokane Moderate Spokane Valley-E Broadway Ave PM2.5 11 PM 52
Spokane Moderate Spokane Valley-E Buckeye Ave PM2.5 11 PM 53
Spokane Good Spokane Valley-E Wellesley Ave PM2.5 11 PM 37
Spokane Good Spokane Valley-N Pines Rd PM2.5 11 PM 41
Spokane Moderate Spokane-Augusta Ave PM2.5 11 PM 51
Spokane Good Spokane-E Garland Ave PM2.5 11 PM 49
Spokane Moderate Spokane-E Joseph Ave PM2.5 11 PM 52
Spokane Moderate Spokane-E Sprague Ave PM2.5 11 PM 52
Spokane Good Spokane-E Stonewall Ave PM2.5 11 PM 47
Spokane Good Spokane-E Thurston Ave PM2.5 11 PM 38
Spokane Good Spokane-Greenbluff O3 11 PM 36
Spokane Moderate Spokane-Monroe St PM2.5 11 PM 51
Spokane Moderate Spokane-N Howard St PM2.5 11 PM 51
Spokane Good Spokane-N Perry St PM2.5 11 PM 49
Spokane Good Spokane-S Pittsburg St PM2.5 11 PM 34
Skamania Moderate Stevenson PM2.5 11 PM 52
Yakima Moderate Sunnyside-S 16th St PM2.5 11 PM 52
Pierce Moderate Tacoma-Alexander Ave PM2.5 11 PM 78
Pierce Moderate Tacoma-L Street PM2.5 11 PM 59
Pierce Moderate Tacoma-S 36th St PM2.5 11 PM 57
Grays Harbor Good Taholah-Quinault Tribe PM2.5 11 PM 46
Okanogan Good Tonasket PM2.5 11 PM 33
Yakima Moderate Toppenish-Yakama Tribe PM2.5 11 PM 65
King Moderate Tukwila Allentown PM2.5 11 PM 72
Okanogan Good Twisp-S Lincoln St PM2.5 11 PM 44
Yakima Moderate Union Gap-4th St PM2.5 11 PM 53
Clark Good Vancouver NE 84th Ave PM2.5 11 PM 48
Clark Good Vancouver-Blairmont Dr PM2.5 11 PM 29
Clark Good Vancouver-Fort Vancouver Way PM2.5 11 PM 30
Walla Walla Moderate Walla Walla-12th St PM2.5 11 PM 59
Stevens Good Wellpinit-Spokane Tribe PM2.5 11 PM 30
Chelan Good Wenatchee-Fifth St PM2.5 11 PM 38
Chelan Good Wenatchee-Methow St PM2.5 11 PM 33
Klickitat Moderate White Salmon-N Main Ave PM2.5 11 PM 57
Okanogan Good Winthrop-Chewuch Rd PM2.5 11 PM 44
Clark Good Yacolt-Yacolt Rd PM2.5 11 PM 40
Yakima Moderate Yakima-4th Ave PM2.5 11 PM 54
Thurston Good Yelm-Bald Hill Rd SE PM2.5 11 PM 39