Air Quality Telemetry System

AQI 24HR Summary

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Saturday, 8/23/2025
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 32
Spokane Good Airway Heights-W 12th Ave PM2.5 11 PM 26
Skagit Good Anacortes 202 O Avenue PM2.5 11 PM 37
Skagit Good Anacortes-Bartholomew Rd PM2.5 11 PM 44
King Good Auburn-29th Street PM2.5 (NPM25) 11 PM 49
King Good Bellevue-SE 12th St PM2.5 11 PM 34
Whatcom Good Bellingham-Pacific St PM2.5 11 PM 38
Kitsap Good Bremerton-Spruce Ave PM2.5 11 PM 47
Okanogan Good Brewster PM2.5 11 PM 34
Walla Walla Moderate Burbank-Maple St PM2.5 11 PM 61
Chelan Good Cashmere PM2.5 11 PM 43
Wahkiakum Good Cathlamet PM2.5 11 PM 29
Lewis Good Chehalis-Market Blvd PM2.5 11 PM 28
Chelan Good Chelan-Woodin Ave PM2.5 11 PM 39
Spokane Good Cheney-Turnbull PM2.5 11 PM 44
Asotin Unhealthy Clarkston-13th St PM2.5 11 PM 160
Kittitas Good Cle Elum PM2.5 11 PM 48
Spokane Good Colbert-Greenbluff Rd PM2.5 11 PM 40
Stevens Moderate Colville-E 1st St PM10 11 PM 72
Whatcom Good Custer-Loomis PM2.5 11 PM 36
Snohomish Good Darrington-Fir St PM2.5 11 PM 43
Lincoln Good Davenport PM2.5 11 PM 46
Columbia Moderate Dayton-W Main St PM2.5 11 PM 86
King Good Des Moines-S 240th St PM2.5 11 PM 31
Douglas Moderate East Wenatchee-8th St NE PM2.5 11 PM 51
Kittitas Moderate Ellensburg-Discovery Hall PM2.5 11 PM 56
Kittitas Moderate Ellensburg-Mountain View Ave PM2.5 11 PM 57
Kittitas Moderate Ellensburg-N Cora St PM2.5 11 PM 57
Kittitas Moderate Ellensburg-Ruby St PM2.5 11 PM 55
Chelan Good Entiat PM2.5 11 PM 40
King Good Enumclaw-Mud Mtn. O3 11 PM 45
Snohomish Good Everett-12th St PM2.5 11 PM 34
Snohomish Good Everett-Beverly Park Rd PM2.5 11 PM 45
Snohomish Good Everett-Rucker Ave PM2.5 11 PM 30
King Good Federal Way-S 300th St PM2.5 11 PM 33
Benton Moderate Finley-S Finley Rd PM2.5 11 PM 66
Clallam Good Forks-Tillicum Ln PM2.5 11 PM 30
Grant Moderate George PM2.5 11 PM 61
Klickitat Moderate Goldendale-W Court St PM2.5 11 PM 55
Pacific Good Ilwaco PM2.5 11 PM 38
King Moderate Issaquah-Lake Sammamish PM2.5 11 PM 53
Cowlitz Good Kelso PM2.5 11 PM 26
Benton Good Kennewick-Metaline PM10 11 PM 32
Benton Moderate Kennewick-S Steptoe St PM2.5 11 PM 61
Thurston Good Lacey-College St PM2.5 11 PM 46
Whitman Moderate LaCrosse-Hill St PM2.5 11 PM 55
King Good Lake Forest Park-Town Center PM2.5 11 PM 43
Chelan Good Leavenworth-Evans St PM2.5 11 PM 37
Cowlitz Good Longview-30th Ave PM2.5 11 PM 38
Whatcom Good Maple Falls - Azure Way PM2.5 11 PM 27
Snohomish Moderate Marysville-7th Ave PM2.5 11 PM 52
Grant Moderate Mattawa Wahluke High School PM2.5 11 PM 57
Franklin Moderate Mesa-Pepiot Way PM2.5 11 PM 62
Grant Moderate Moses Lake-Balsam St PM2.5 11 PM 60
Lewis Good Mossyrock PM2.5 11 PM 32
Yakima Moderate Moxee-E Seattle Ave PM2.5 11 PM 60
Pierce Good Mt Rainier-Jackson Visitors Ctr PM2.5 11 PM 47
Skagit Good Mt Vernon-S Second St PM2.5 11 PM 18
Clallam Good Neah Bay 2-Makah Tribe PM2.5 11 PM 28
Pend Oreille Good Newport-Calispel PM2.5 11 PM 39
King Good North Bend-North Bend Way PM2.5 11 PM 40
Island Good Oak Harbor-SW 6th PM2.5 11 PM 15
Okanogan Good Omak-Colville Tribe PM2.5 11 PM 34
Skagit Good Padilla Bay PM2.5 11 PM 18
Garfield Unhealthy For Sensitive Groups Pomeroy-Pataha St PM2.5 11 PM 107
Clallam Good Port Angeles- E 5th St PM2.5 11 PM 32
Jefferson Good Port Townsend-San Juan Ave PM2.5 11 PM 26
Benton Moderate Prosser-Highland Dr PM2.5 11 PM 59
Whitman Moderate Pullman-Dexter SE PM2.5 11 PM 59
Pierce Good Puyallup-Pioneer Way E PM2.5 11 PM 33
Grant Moderate Quincy-3rd Ave NE PM2.5 11 PM 52
Pacific Good Raymond-4th St PM2.5 11 PM 30
Ferry Good Republic PM2.5 11 PM 17
Adams Good Ritzville-Alder St PM2.5 11 PM 43
Whitman Moderate Rosalia-Josephine St PM2.5 11 PM 52
Grant Moderate Royal City PM2.5 11 PM 60
King Moderate SeaTac-Sunset Park PM2.5 11 PM 54
King Moderate Seattle-10th & Weller PM2.5 11 PM 58
King Good Seattle-16th Ave S PM2.5 11 PM 23
King Good Seattle-23rd Ave SW PM2.5 11 PM 42
King Good Seattle-5th Ave S PM2.5 11 PM 39
King Good Seattle-Beacon Hill PM2.5 11 PM 48
King Good Seattle-College Way N PM2.5 11 PM 29
King Moderate Seattle-Duwamish PM2.5 11 PM 54
King Good Seattle-Linden Ave N PM2.5 11 PM 40
King Good Seattle-NE 127th St PM2.5 11 PM 43
King Good Seattle-S Myrtle St PM2.5 11 PM 24
King Moderate Seattle-South Park PM2.5 11 PM 53
Mason Good Shelton-W Franklin PM2.5 11 PM 35
Grant Moderate Soap Lake-4th Ave SE PM2.5 11 PM 53
Spokane Good Spokane Valley-E Broadway Ave PM2.5 11 PM 47
Spokane Good Spokane Valley-E Buckeye Ave PM2.5 11 PM 47
Spokane Good Spokane Valley-E Wellesley Ave PM2.5 11 PM 45
Spokane Good Spokane Valley-N Pines Rd PM2.5 11 PM 44
Spokane Moderate Spokane-Augusta Ave TPM10 11 PM 52
Spokane Good Spokane-E Garland Ave PM2.5 11 PM 47
Spokane Good Spokane-E Joseph Ave PM2.5 11 PM 41
Spokane Good Spokane-E Sprague Ave PM2.5 11 PM 47
Spokane Good Spokane-E Stonewall Ave PM2.5 11 PM 33
Spokane Good Spokane-E Thurston Ave PM2.5 11 PM 38
Spokane Good Spokane-Greenbluff O3 11 PM 33
Spokane Good Spokane-Monroe St PM2.5 11 PM 38
Spokane Good Spokane-N Howard St PM2.5 11 PM 41
Spokane Good Spokane-N Perry St PM2.5 11 PM 47
Spokane Good Spokane-S Pittsburg St PM2.5 11 PM 32
Skamania Moderate Stevenson PM2.5 11 PM 51
Yakima Moderate Sunnyside-S 16th St PM2.5 11 PM 62
Pierce Moderate Tacoma-Alexander Ave PM2.5 11 PM 58
Pierce Good Tacoma-L Street PM2.5 11 PM 46
Pierce Good Tacoma-S 36th St PM2.5 11 PM 39
Grays Harbor Good Taholah-Quinault Tribe PM2.5 11 PM 35
Okanogan Good Tonasket PM2.5 11 PM 14
Yakima Moderate Toppenish-Yakama Tribe PM2.5 11 PM 64
King Moderate Tukwila Allentown PM2.5 11 PM 66
Okanogan Good Twisp-S Lincoln St PM2.5 11 PM 37
Yakima Moderate Union Gap-4th St PM2.5 11 PM 55
Clark Good Vancouver NE 84th Ave PM2.5 11 PM 46
Clark Good Vancouver-Blairmont Dr O3 11 PM 41
Clark Good Vancouver-Fort Vancouver Way PM2.5 11 PM 31
Walla Walla Moderate Walla Walla-12th St PM2.5 11 PM 66
Stevens Good Wellpinit-Spokane Tribe PM2.5 11 PM 29
Chelan Good Wenatchee-Fifth St PM2.5 11 PM 48
Chelan Moderate Wenatchee-Methow St PM2.5 11 PM 52
Klickitat Moderate White Salmon-N Main Ave PM2.5 11 PM 56
Okanogan Good Winthrop-Chewuch Rd PM2.5 11 PM 31
Clark Good Yacolt-Yacolt Rd PM2.5 11 PM 36
Yakima Moderate Yakima-4th Ave PM2.5 11 PM 66
Thurston Good Yelm-Bald Hill Rd SE PM2.5 06 PM 23