Pollen Monitor
Daily pollen insights

Daily pollen overview

St Louis pollen count

Latest detail and daily averages and peaks across all 390 captured day(s).

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Risk levels use category-specific National Allergy Bureau thresholds. Weed is labeled Ragweed because it is the sole weed species in the current multi-region dataset.

Latest daily detail

Tue, Oct 13, 2026. Daily averages and highest observed values.

America/Chicago

Total

73

Average

81

Peak

Tree

None

0

Average

0

Peak

Grass

None

0

Average

0

Peak

Ragweed

High

73

Average

81

Peak

Values are modeled grains/m³. Risk badges use the daily peak for each category.

Species breakdown

Daily average grains/m³ for each reported allergen.

Tree

Ash0
Elm0
Oak0
Pine0
Birch0
Maple0
Mulberry0
Poplar/Cottonwood0
Cypress/Juniper/Cedar0

Grass

Grass0

Ragweed

Ragweed73

Complete daily history

Average and peak modeled grains/m³ for all 390 captured days. Scroll sideways on smaller screens.

Complete daily pollen averages and peaks, newest first
DateTotalTreeGrassRagweed
AveragePeakAveragePeakAveragePeakAveragePeak
Tue, Oct 13, 2026Latest738100007381
Mon, Oct 12, 2026526100005261
Sun, Oct 11, 202662103000062103
Sat, Oct 10, 2026476100004761
Fri, Oct 9, 202651110000051110
Thu, Oct 8, 2026455900004559
Wed, Oct 7, 202669185000069185
Tue, Oct 6, 202654112000054112
Mon, Oct 5, 202670114000070114
Sun, Oct 4, 2026599700005997
Sat, Oct 3, 20266010047005593
Fri, Oct 2, 20265186813004373
Thu, Oct 1, 2026981312837007094
Wed, Sep 30, 2026811313150005081
Tue, Sep 29, 2026631423171003171
Mon, Sep 28, 202655822741002741
Sun, Sep 27, 202650902545002545
Sat, Sep 26, 202643702235002235
Fri, Sep 25, 202653822741002741
Thu, Sep 24, 202657642932002932
Wed, Sep 23, 202657722936002936
Tue, Sep 22, 202659723036003036
Mon, Sep 21, 202684270421350042135
Sun, Sep 20, 2026161382811910081191
Sat, Sep 19, 2026951844892004892
Fri, Sep 18, 2026170366851830085183
Thu, Sep 17, 2026127330631650063165
Wed, Sep 16, 2026941844792004792
Tue, Sep 15, 2026891844492004492
Mon, Sep 14, 2026731063753003753
Sun, Sep 13, 2026821824191004191
Sat, Sep 12, 2026801844092004092
Fri, Sep 11, 2026641043252003252
Thu, Sep 10, 202677208391040039104
Wed, Sep 9, 2026961504875004875
Tue, Sep 8, 2026771003850003850
Mon, Sep 7, 2026751023851003851
Sun, Sep 6, 2026881224461004461
Sat, Sep 5, 20261021825191005191
Fri, Sep 4, 20261051825291005291
Thu, Sep 3, 2026871174054004763
Wed, Sep 2, 2026801073749004358
Tue, Sep 1, 2026801133752004361
Mon, Aug 31, 2026801203146694465
Sun, Aug 30, 2026711092742583859
Sat, Aug 29, 2026671072641583658
Fri, Aug 28, 202653592023442932
Thu, Aug 27, 202654682126452937
Wed, Aug 26, 202653652025452935
Tue, Aug 25, 202645541721342429
Mon, Aug 24, 202645551821342530
Sun, Aug 23, 202633441317231824
Sat, Aug 22, 202627361114221520
Fri, Aug 21, 202648941836372651
Thu, Aug 20, 202627311012221517
Wed, Aug 19, 202625441017131424
Tue, Aug 18, 202626321012221418
Mon, Aug 17, 202625291011221416
Sun, Aug 16, 202628441117231524
Sat, Aug 15, 20262527910121415
Fri, Aug 14, 20262527910121415
Thu, Aug 13, 202625441017131424
Wed, Aug 12, 20262336914121320
Tue, Aug 11, 202633751329251841
Mon, Aug 10, 202630741229251740
Sun, Aug 9, 20261926810121114
Sat, Aug 8, 20261926810121114
Fri, Aug 7, 2026152761012815
Thu, Aug 6, 2026142761012815
Wed, Aug 5, 202617227911912
Tue, Aug 4, 202616236911913
Mon, Aug 3, 202617235745811
Sun, Aug 2, 202615223557710
Sat, Aug 1, 2026162323710710
Fri, Jul 31, 2026172211101279
Thu, Jul 30, 2026182300121568
Wed, Jul 29, 20262161001439822
Tue, Jul 28, 202635870023561231
Mon, Jul 27, 202634870022561231
Sun, Jul 26, 202631870020561131
Sat, Jul 25, 20262287001556831
Fri, Jul 24, 2026232600151789
Thu, Jul 23, 2026202300131578
Wed, Jul 22, 20262228001418810
Tue, Jul 21, 202633870021561231
Mon, Jul 20, 20262487001656931
Sun, Jul 19, 202640920026591433
Sat, Jul 18, 20262461001639822
Fri, Jul 17, 202627840018541030
Thu, Jul 16, 20262340001526814
Wed, Jul 15, 20262342001527815
Tue, Jul 14, 2026192600131779
Mon, Jul 13, 20262228001418810
Sun, Jul 12, 20262729001719910
Sat, Jul 11, 20261960001239721
Fri, Jul 10, 20262160001439721
Thu, Jul 9, 20262448001631917
Wed, Jul 8, 20262260001439821
Tue, Jul 7, 2026124300413830
Mon, Jul 6, 2026123913414824
Sun, Jul 5, 2026175927721931
Sat, Jul 4, 20262339379161016
Fri, Jul 3, 202623884181040934
Thu, Jul 2, 20262139591018712
Wed, Jul 1, 20261859518927414
Tue, Jun 30, 202622786201138520
Mon, Jun 29, 202620506141026410
Sun, Jun 28, 20261774523834417
Sat, Jun 27, 20261960518929414
Fri, Jun 26, 20261345414621310
Thu, Jun 25, 202620916281042421
Wed, Jun 24, 202616325981747
Tue, Jun 23, 202622746211138515
Mon, Jun 22, 2026193551191748
Sun, Jun 21, 202627838261338619
Sat, Jun 20, 202629978271450720
Fri, Jun 19, 20261849515923411
Thu, Jun 18, 20263612410321860932
Wed, Jun 17, 20261945613102349
Tue, Jun 16, 202630529161524712
Mon, Jun 15, 202630579181526714
Sun, Jun 14, 202629548151428711
Sat, Jun 13, 202627688211332617
Fri, Jun 12, 2026367410231734817
Thu, Jun 11, 2026399011231944923
Wed, Jun 10, 202626397111319610
Tue, Jun 9, 202628818251437719
Mon, Jun 8, 20263714611451867834
Sun, Jun 7, 202659140205027601330
Sat, Jun 6, 202673139315729571325
Fri, Jun 5, 202674138376426531222
Thu, Jun 4, 202686153498425471223
Wed, Jun 3, 20267112145751832714
Tue, Jun 2, 20267613155971426612
Mon, Jun 1, 202681270642171338515
Sun, May 31, 20266311650881018310
Sat, May 30, 20266216149128102837
Fri, May 29, 2026109270852091741720
Thu, May 28, 202680185631501231513
Wed, May 27, 20266213449106102436
Tue, May 26, 202692155721221528510
Mon, May 25, 202683142651081322512
Sun, May 24, 202690248721991439517
Sat, May 23, 2026101140791091625612
Fri, May 22, 20261272631002202037819
Thu, May 21, 20261473261162762238920
Wed, May 20, 20261593271252622446919
Tue, May 19, 202697237771831538518
Mon, May 18, 20266613752110101938
Sun, May 17, 2026122404963061964734
Sat, May 16, 202681178641381327513
Fri, May 15, 20261362961072492140821
Thu, May 14, 20261454341153652165934
Wed, May 13, 2026121301962531941718
Tue, May 12, 2026116191911481829614
Mon, May 11, 20261533171212402450827
Sun, May 10, 202617032813528326481019
Sat, May 9, 202628763923455338711530
Fri, May 8, 202620257816450927701137
Thu, May 7, 20261716921426282045919
Wed, May 6, 20261633981443741627411
Tue, May 5, 20262391,2312191,1901537411
Mon, May 4, 202618543017842662425
Sun, May 3, 2026232667224661522217
Sat, May 2, 20263121,3713111,3631414
Fri, May 1, 20263039743039740000
Thu, Apr 30, 20263731,9803731,9800000
Wed, Apr 29, 20263648133648130000
Tue, Apr 28, 20263117273117270000
Mon, Apr 27, 20266184,0756184,0750000
Sun, Apr 26, 20263451,0763451,0760000
Sat, Apr 25, 20263308573308570000
Fri, Apr 24, 20265312,1755312,1750000
Thu, Apr 23, 20267913,7287913,7280000
Wed, Apr 22, 20263151,6943151,6940000
Tue, Apr 21, 20264509454509450000
Mon, Apr 20, 20262915952915950000
Sun, Apr 19, 20263911,4793911,4790000
Sat, Apr 18, 20264901,2684901,2680000
Fri, Apr 17, 20263368163368160000
Thu, Apr 16, 20263901,7543901,7540000
Wed, Apr 15, 20268623,0488623,0480000
Tue, Apr 14, 20269144,3199144,3190000
Mon, Apr 13, 20268513,1838513,1830000
Sun, Apr 12, 20261,1304,1891,1304,1890000
Sat, Apr 11, 20267893,8147893,8140000
Fri, Apr 10, 20269292,0109292,0100000
Thu, Apr 9, 20266152,2626152,2620000
Wed, Apr 8, 20267136,0037136,0030000
Tue, Apr 7, 20264481,5494481,5490000
Mon, Apr 6, 20266482,6646482,6640000
Sun, Apr 5, 20265683,5065683,5060000
Sat, Apr 4, 20267034,0717034,0710000
Fri, Apr 3, 20269202,6119202,6110000
Thu, Apr 2, 20269023,7559023,7550000
Wed, Apr 1, 20261,0084,4941,0084,4940000
Tue, Mar 31, 20261,0233,8871,0233,8870000
Mon, Mar 30, 20267893,7067893,7060000
Sun, Mar 29, 20267053,1667053,1660000
Sat, Mar 28, 20262401,0832401,0830000
Fri, Mar 27, 20266402,7636402,7630000
Thu, Mar 26, 20261,4014,5931,4014,5930000
Wed, Mar 25, 20265532,3055532,3050000
Tue, Mar 24, 20262418392418390000
Mon, Mar 23, 20263091,3393091,3390000
Sun, Mar 22, 20261,1002,7861,1002,7860000
Sat, Mar 21, 20264841,7924841,7920000
Fri, Mar 20, 20265941,9245941,9240000
Thu, Mar 19, 20263671,2593671,2590000
Wed, Mar 18, 20263193,6953193,6950000
Tue, Mar 17, 20261249281249280000
Mon, Mar 16, 20261331,0401331,0400000
Sun, Mar 15, 20264449704449700000
Sat, Mar 14, 20262638902638900000
Fri, Mar 13, 20263216503216500000
Thu, Mar 12, 20261644531644530000
Wed, Mar 11, 20263337143337140000
Tue, Mar 10, 20264361,8374361,8370000
Mon, Mar 9, 20263037613037610000
Sun, Mar 8, 20262501,0382501,0380000
Sat, Mar 7, 20263337243337240000
Fri, Mar 6, 20262045642045640000
Thu, Mar 5, 20261565661565660000
Wed, Mar 4, 20261224411224410000
Tue, Mar 3, 20261323391323390000
Mon, Mar 2, 20261334271334270000
Sun, Mar 1, 20261533881533880000
Sat, Feb 28, 20261857841857840000
Fri, Feb 27, 20263091,3463091,3460000
Thu, Feb 26, 20261734001734000000
Wed, Feb 25, 20261292821292820000
Tue, Feb 24, 20261581,0791581,0790000
Mon, Feb 23, 202682277822770000
Sun, Feb 22, 202669258692580000
Sat, Feb 21, 20261063651063650000
Fri, Feb 20, 20261846571846570000
Thu, Feb 19, 20262597892597890000
Wed, Feb 18, 20262931,0792931,0790000
Tue, Feb 17, 20262126392126390000
Mon, Feb 16, 20262079242079240000
Sun, Feb 15, 202692309923090000
Sat, Feb 14, 20261142361142360000
Fri, Feb 13, 20262831,3382831,3380000
Thu, Feb 12, 202671202712020000
Wed, Feb 11, 202694315943150000
Tue, Feb 10, 20261603041603040000
Mon, Feb 9, 202662245622450000
Sun, Feb 8, 202689326893260000
Sat, Feb 7, 202647134471340000
Fri, Feb 6, 202655247552470000
Thu, Feb 5, 202625133251330000
Wed, Feb 4, 2026229522950000
Tue, Feb 3, 202640128401280000
Mon, Feb 2, 202635109351090000
Sun, Feb 1, 2026112111210000
Sat, Jan 31, 20268268260000
Fri, Jan 30, 2026121912190000
Thu, Jan 29, 2026208320830000
Wed, Jan 28, 2026143714370000
Tue, Jan 27, 20268198190000
Mon, Jan 26, 20265125120000
Sun, Jan 25, 20267187180000
Sat, Jan 24, 2026114211420000
Fri, Jan 23, 2026177717770000
Thu, Jan 22, 202666797667970000
Wed, Jan 21, 20262342,0832342,0830000
Tue, Jan 20, 202634352343520000
Mon, Jan 19, 2026147914790000
Sun, Jan 18, 2026178517850000
Sat, Jan 17, 202646632466320000
Fri, Jan 16, 202652353523530000
Thu, Jan 15, 2026134513450000
Wed, Jan 14, 20261271,5681271,5680000
Tue, Jan 13, 20261134111134110000
Mon, Jan 12, 202690992909920000
Sun, Jan 11, 2026399039900000
Sat, Jan 10, 202649234492340000
Fri, Jan 9, 202678176781760000
Thu, Jan 8, 20261081,1621081,1620000
Wed, Jan 7, 20261031,3101031,3100000
Tue, Jan 6, 20261072851072850000
Mon, Jan 5, 202666627666270000
Sun, Jan 4, 2026207520750000
Sat, Jan 3, 202620143201430000
Fri, Jan 2, 20268198190000
Thu, Jan 1, 20269469460000
Wed, Dec 31, 2025146214620000
Tue, Dec 30, 20259459450000
Mon, Dec 29, 20257367360000
Sun, Dec 28, 20251757151757150000
Sat, Dec 27, 2025102210220000
Fri, Dec 26, 20251226371226370000
Thu, Dec 25, 202541272412720000
Wed, Dec 24, 2025183118310000
Tue, Dec 23, 202554541545410000
Mon, Dec 22, 202543345433450000
Sun, Dec 21, 20259299290000
Sat, Dec 20, 2025124812480000
Fri, Dec 19, 2025133213320000
Thu, Dec 18, 202542508425080000
Wed, Dec 17, 202515138151380000
Tue, Dec 16, 202520169201690000
Mon, Dec 15, 20256136130000
Sun, Dec 14, 20257217210000
Sat, Dec 13, 2025135213520000
Fri, Dec 12, 20257157150000
Thu, Dec 11, 20257157150000
Wed, Dec 10, 2025104610460000
Tue, Dec 9, 2025104410440000
Mon, Dec 8, 20256126120000
Sun, Dec 7, 20254104100000
Sat, Dec 6, 2025612490013
Fri, Dec 5, 2025512370025
Thu, Dec 4, 2025514260038
Wed, Dec 3, 2025511130048
Tue, Dec 2, 20256130100612
Mon, Dec 1, 20256140000614
Sun, Nov 30, 20254140000414
Sat, Nov 29, 20254100000410
Fri, Nov 28, 20256130000613
Thu, Nov 27, 20257210000721
Wed, Nov 26, 2025116400001164
Tue, Nov 25, 20259400000940
Mon, Nov 24, 20256140000614
Sun, Nov 23, 20256220000622
Sat, Nov 22, 20255130000513
Fri, Nov 21, 20254100000410
Thu, Nov 20, 20255130000513
Wed, Nov 19, 20254100000410
Tue, Nov 18, 2025163300001633
Mon, Nov 17, 2025154600001546
Sun, Nov 16, 2025267100002671
Sat, Nov 15, 2025259100002591
Fri, Nov 14, 2025205900002059
Thu, Nov 13, 2025132900001329
Wed, Nov 12, 2025132700001327
Tue, Nov 11, 2025113200001132
Mon, Nov 10, 20257260000726
Sun, Nov 9, 20258240000824
Sat, Nov 8, 2025173800001738
Fri, Nov 7, 2025255800002558
Thu, Nov 6, 2025143600001436
Wed, Nov 5, 2025173000001730
Tue, Nov 4, 2025133200001332
Mon, Nov 3, 2025184500001845
Sun, Nov 2, 202521176000021176
Sat, Nov 1, 2025175000001750
Fri, Oct 31, 202534329000034329
Thu, Oct 30, 2025207100002071
Wed, Oct 29, 20258250000825
Tue, Oct 28, 20254100000410
Mon, Oct 27, 2025132300001323
Sun, Oct 26, 2025163500001635
Sat, Oct 25, 2025215200002152
Fri, Oct 24, 2025157500001575
Thu, Oct 23, 2025188200001882
Wed, Oct 22, 2025379400003794
Tue, Oct 21, 202543109000043109
Mon, Oct 20, 202535116000035116
Sun, Oct 19, 2025328400003284
Sat, Oct 18, 202542149000042149
Fri, Oct 17, 2025369700003697
Thu, Oct 16, 2025254800002548
Wed, Oct 15, 2025379300003793
Tue, Oct 14, 202534148000034148
Mon, Oct 13, 202543108000043108
Sun, Oct 12, 202562189000062189
Sat, Oct 11, 202592306000092306
Fri, Oct 10, 202531185000031185
Thu, Oct 9, 2025365500003655
Wed, Oct 8, 202531100000031100
Tue, Oct 7, 202549163000049163
Mon, Oct 6, 202564170000064170
Sun, Oct 5, 202586251000086251
Sat, Oct 4, 202579153000079153
Fri, Oct 3, 202551186000051186
Thu, Oct 2, 202589177000089177
Wed, Oct 1, 202556149000056149
Tue, Sep 30, 202553152000053152
Mon, Sep 29, 202549126000049126
Sun, Sep 28, 202541134000041134
Sat, Sep 27, 202540137000040137
Fri, Sep 26, 202542145000042145
Thu, Sep 25, 202570199000070199
Wed, Sep 24, 202554126000054126
Tue, Sep 23, 2025427700004277
Mon, Sep 22, 2025489700004897
Sun, Sep 21, 20251103950000110395
Sat, Sep 20, 202578319000078319
Fri, Sep 19, 202573291000073291