Air Quality Telemetry System

AQI 24HR Summary

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Wednesday, 4/9/2025
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 16
Spokane Good Airway Heights-W 12th Ave PM2.5 11 PM 19
Skagit Good Anacortes 202 O Avenue O3 11 PM 34
Skagit Good Anacortes-Bartholomew Rd PM2.5 11 PM 39
King Good Auburn-29th Street PM2.5 (NPM25) 11 PM 23
King Good Bellevue-SE 12th St PM2.5 11 PM 12
Whatcom Good Bellingham-Pacific St PM2.5 11 PM 21
Kitsap Good Bremerton-Spruce Ave PM2.5 11 PM 18
Okanogan Good Brewster PM2.5 11 PM 7
Walla Walla Good Burbank-Maple St PM10 11 PM 13
Chelan Good Cashmere PM2.5 11 PM 20
Wahkiakum Good Cathlamet PM2.5 11 PM 13
Lewis Good Chehalis-Market Blvd PM2.5 11 PM 14
Chelan Good Chelan-Woodin Ave PM2.5 11 PM 9
Spokane Good Cheney-Turnbull PM2.5 11 PM 7
Asotin Good Clarkston-13th St PM2.5 11 PM 11
Kittitas Good Cle Elum PM2.5 11 PM 7
Spokane Good Colbert-Greenbluff Rd PM2.5 11 PM 17
Stevens Good Colville-E 1st St PM10 11 PM 6
Whatcom Good Custer-Loomis O3 11 PM 25
Snohomish Good Darrington-Fir St PM2.5 11 PM 10
Lincoln Good Davenport PM2.5 11 PM 6
Columbia Good Dayton-W Main St PM2.5 11 PM 11
King Good Des Moines-S 240th St PM2.5 11 PM 15
Douglas Good East Wenatchee-8th St NE PM2.5 11 PM 11
Kittitas Good Ellensburg-Discovery Hall PM2.5 11 PM 15
Kittitas Good Ellensburg-Mountain View Ave PM2.5 11 PM 20
Kittitas Good Ellensburg-N Cora St PM2.5 11 PM 14
Kittitas Good Ellensburg-Ruby St PM2.5 (NPM25) 11 PM 26
King Good Enumclaw-Mud Mtn. PM2.5 11 PM 9
Snohomish Good Everett-12th St PM2.5 11 PM 16
Snohomish Good Everett-Beverly Park Rd PM2.5 11 PM 33
Snohomish Good Everett-Rucker Ave PM2.5 11 PM 25
Benton Good Finley-S Finley Rd PM2.5 11 PM 17
Clallam Good Forks-Tillicum Ln PM2.5 11 PM 7
Grant Good George PM2.5 11 PM 15
Klickitat Good Goldendale-W Court St PM2.5 11 PM 12
King Good Issaquah-Lake Sammamish PM2.5 11 PM 9
Benton Good Kennewick-Metaline PM2.5 11 PM 19
Benton Good Kennewick-S Steptoe St PM2.5 11 PM 16
Thurston Moderate Lacey-College St PM2.5 11 PM 63
Whitman Good LaCrosse-Hill St PM2.5 11 PM 3
King Good Lake Forest Park-Town Center PM2.5 11 PM 23
Chelan Good Leavenworth-Evans St PM2.5 11 PM 11
Cowlitz Good Longview-30th Ave PM2.5 11 PM 16
Okanogan Moderate Malott PM2.5 11 PM 53
Whatcom Moderate Maple Falls - Azure Way PM2.5 11 PM 56
Snohomish Good Marysville-7th Ave PM2.5 11 PM 41
Grant Good Mattawa Wahluke High School PM2.5 11 PM 16
Franklin Good Mesa-Pepiot Way PM2.5 11 PM 16
Grant Good Moses Lake-Balsam St PM2.5 11 PM 27
Yakima Good Moxee-E Seattle Ave PM2.5 11 PM 8
Pierce Good Mt Rainier-Jackson Visitors Ctr O3 11 PM 39
Skagit Good Mt Vernon-S Second St PM2.5 11 PM 9
Clallam Good Neah Bay 2-Makah Tribe PM2.5 11 PM 11
Pend Oreille Good Newport-Calispel PM2.5 11 PM 20
King No Index North Bend-North Bend Way PM2.5 11 PM ----
Island Good Oak Harbor-SW 6th PM2.5 11 PM 12
Okanogan Good Omak-Colville Tribe PM2.5 11 PM 8
Skagit Good Padilla Bay PM2.5 11 PM 7
Garfield Good Pomeroy-Pataha St PM2.5 11 PM 10
Clallam Good Port Angeles- E 5th St PM2.5 11 PM 43
Jefferson Good Port Townsend-San Juan Ave PM2.5 11 PM 14
Benton Good Prosser-Highland Dr PM2.5 11 PM 9
Whitman Good Pullman-Dexter SE PM2.5 11 PM 9
Pierce Good Puyallup-Pioneer Way E PM2.5 11 PM 16
Grant Good Quincy-3rd Ave NE PM2.5 11 PM 14
Pacific Good Raymond-4th St PM2.5 11 PM 11
Ferry Good Republic PM2.5 11 PM 13
Adams Good Ritzville-Alder St PM2.5 11 PM 9
Whitman Good Rosalia-Josephine St PM2.5 11 PM 9
Grant Good Royal City PM2.5 11 PM 25
King Good Seattle-10th & Weller PM2.5 11 PM 32
King Good Seattle-16th Ave S PM2.5 11 PM 16
King Good Seattle-23rd Ave SW PM2.5 11 PM 20
King Good Seattle-Beacon Hill O3 11 PM 31
King Good Seattle-College Way N PM2.5 11 PM 14
King Good Seattle-Duwamish PM2.5 11 PM 29
King Good Seattle-Linden Ave N PM2.5 11 PM 16
King Good Seattle-NE 127th St PM2.5 11 PM 26
King Good Seattle-S Myrtle St PM2.5 11 PM 12
King Good Seattle-South Park PM2.5 11 PM 37
Mason Good Shelton-W Franklin PM2.5 11 PM 29
Grant Good Soap Lake-4th Ave SE PM2.5 11 PM 32
Spokane Good Spokane Valley-E Broadway Ave PM2.5 11 PM 34
Spokane Good Spokane Valley-E Buckeye Ave PM2.5 11 PM 21
Spokane Good Spokane Valley-E Wellesley Ave PM2.5 11 PM 7
Spokane Good Spokane Valley-N Pines Rd PM2.5 11 PM 16
Spokane Good Spokane-Augusta Ave PM2.5 11 PM 34
Spokane Good Spokane-E Garland Ave PM2.5 11 PM 19
Spokane Good Spokane-E Joseph Ave PM2.5 11 PM 24
Spokane Good Spokane-E Sprague Ave PM2.5 11 PM 16
Spokane Good Spokane-E Stonewall Ave PM2.5 11 PM 17
Spokane Good Spokane-E Thurston Ave PM2.5 11 PM 9
Spokane Good Spokane-Greenbluff PM2.5 11 PM 11
Spokane Good Spokane-Monroe St PM2.5 11 PM 24
Spokane Good Spokane-N Howard St PM2.5 11 PM 19
Spokane Good Spokane-N Perry St PM2.5 11 PM 19
Spokane Good Spokane-S Pittsburg St PM2.5 11 PM 25
Skamania Good Stevenson PM2.5 11 PM 30
Yakima Good Sunnyside-S 16th St PM2.5 11 PM 12
Pierce Good Tacoma-Alexander Ave PM2.5 11 PM 25
Pierce Good Tacoma-L Street PM2.5 11 PM 36
Pierce Good Tacoma-S 36th St NO2 11 PM 23
Pierce Good Tacoma-S Adams St PM2.5 11 PM 14
Okanogan Good Tonasket PM2.5 11 PM 3
Yakima Good Toppenish-Yakama Tribe PM2.5 11 PM 40
King Good Tukwila Allentown PM2.5 11 PM 42
Okanogan Good Twisp-S Lincoln St PM2.5 11 PM 21
Yakima Good Union Gap-4th St PM2.5 11 PM 17
Clark Good Vancouver NE 84th Ave PM2.5 11 PM 31
Clark Good Vancouver-Blairmont Dr PM2.5 11 PM 21
Walla Walla Good Walla Walla-12th St PM2.5 11 PM 11
Stevens Good Wellpinit-Spokane Tribe PM2.5 11 PM 9
Chelan Good Wenatchee-Fifth St PM2.5 11 PM 23
Chelan Good Wenatchee-Methow St PM2.5 11 PM 21
Klickitat Good White Salmon-N Main Ave PM2.5 11 PM 16
Okanogan Good Winthrop-Chewuch Rd PM2.5 11 PM 14
Clark Good Yacolt-Yacolt Rd PM2.5 11 PM 12
Yakima Good Yakima-4th Ave PM2.5 11 PM 21