Pollen Monitor
Daily pollen insights

Daily pollen overview

Grand Rapids 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/Detroit

Total

88

Average

102

Peak

Tree

None

0

Average

0

Peak

Grass

None

0

Average

0

Peak

Ragweed

High

88

Average

102

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

Ragweed88

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, 2026Latest88102000088102
Mon, Oct 12, 202663128000063128
Sun, Oct 11, 202657100000057100
Sat, Oct 10, 202666105000066105
Fri, Oct 9, 2026516600005166
Thu, Oct 8, 202657108000057108
Wed, Oct 7, 202675130000075130
Tue, Oct 6, 202659142000059142
Mon, Oct 5, 2026528600005286
Sun, Oct 4, 202663112000063112
Sat, Oct 3, 2026475545004450
Fri, Oct 2, 20263970610003460
Thu, Oct 1, 20261939511001428
Wed, Sep 30, 202640681526002542
Tue, Sep 29, 2026531222761002761
Mon, Sep 28, 2026581122956002956
Sun, Sep 27, 202657823041002841
Sat, Sep 26, 202654852847002642
Fri, Sep 25, 2026561242962002762
Thu, Sep 24, 2026811344067004067
Wed, Sep 23, 2026881164558004358
Tue, Sep 22, 2026881404570004370
Mon, Sep 21, 2026861104355004355
Sun, Sep 20, 202659823041003041
Sat, Sep 19, 202661843142003142
Fri, Sep 18, 2026671263363003363
Thu, Sep 17, 202661843042003042
Wed, Sep 16, 202652682634002634
Tue, Sep 15, 202662943147003147
Mon, Sep 14, 202654802840002640
Sun, Sep 13, 2026651183259003259
Sat, Sep 12, 2026811604080004080
Fri, Sep 11, 2026691243462003462
Thu, Sep 10, 202666983349003349
Wed, Sep 9, 202677983849003849
Tue, Sep 8, 2026691023451003451
Mon, Sep 7, 2026711243662003662
Sun, Sep 6, 2026721203660003660
Sat, Sep 5, 202661783139003139
Fri, Sep 4, 202658822941002941
Thu, Sep 3, 2026651433066003577
Wed, Sep 2, 2026651133052003561
Tue, Sep 1, 2026651173054003563
Mon, Aug 31, 2026551012139473055
Sun, Aug 30, 20266515625605123584
Sat, Aug 29, 2026581192346493264
Fri, Aug 28, 202655672226453036
Thu, Aug 27, 202661912435473349
Wed, Aug 26, 202655782130463042
Tue, Aug 25, 202641731628352240
Mon, Aug 24, 202657992238473154
Sun, Aug 23, 202645911735372549
Sat, Aug 22, 202635561322241930
Fri, Aug 21, 202642721628352339
Thu, Aug 20, 202639481519332126
Wed, Aug 19, 202628421116231523
Tue, Aug 18, 202630421216231723
Mon, Aug 17, 202630421116231623
Sun, Aug 16, 202625441017231424
Sat, Aug 15, 202632391215231821
Fri, Aug 14, 202625311012121417
Thu, Aug 13, 20262226910121214
Wed, Aug 12, 20262131812121217
Tue, Aug 11, 202617237911913
Mon, Aug 10, 2026162661012914
Sun, Aug 9, 20261826710121014
Sat, Aug 8, 20262027810121115
Fri, Aug 7, 202616236911913
Thu, Aug 6, 202614206811811
Wed, Aug 5, 202617237911913
Tue, Aug 4, 20261981831161144
Mon, Aug 3, 202617265846812
Sun, Aug 2, 202617284659813
Sat, Aug 1, 2026162323710710
Fri, Jul 31, 20262126121214810
Thu, Jul 30, 20262129001419710
Wed, Jul 29, 2026202300131578
Tue, Jul 28, 2026172500111669
Mon, Jul 27, 20261528001018510
Sun, Jul 26, 2026202600131779
Sat, Jul 25, 2026202600131779
Fri, Jul 24, 20262331001520811
Thu, Jul 23, 20262231001420811
Wed, Jul 22, 20262431001520811
Tue, Jul 21, 20262328001518810
Mon, Jul 20, 2026202600131779
Sun, Jul 19, 20262128001418710
Sat, Jul 18, 20262328001518810
Fri, Jul 17, 2026232600151789
Thu, Jul 16, 20262229001419810
Wed, Jul 15, 20262229001419810
Tue, Jul 14, 2026212600131779
Mon, Jul 13, 20262634001722912
Sun, Jul 12, 202636420023271315
Sat, Jul 11, 20262634001722912
Fri, Jul 10, 2026202600131779
Thu, Jul 9, 202627340018221012
Wed, Jul 8, 20262331001420811
Tue, Jul 7, 20261742016141227
Mon, Jul 6, 20261754146181133
Sun, Jul 5, 202614251359713
Sat, Jul 4, 2026193435815815
Fri, Jul 3, 2026163936718615
Thu, Jul 2, 2026173348815510
Wed, Jul 1, 202619365991849
Tue, Jun 30, 20261932510101548
Mon, Jun 29, 202614324871638
Sun, Jun 28, 20262243613112259
Sat, Jun 27, 202622606171131512
Fri, Jun 26, 202622456141121510
Thu, Jun 25, 2026184151391949
Wed, Jun 24, 20261951616923412
Tue, Jun 23, 20263910811331950925
Mon, Jun 22, 2026183951292049
Sun, Jun 21, 202632739221634718
Sat, Jun 20, 202632839231643717
Fri, Jun 19, 202632549171525712
Thu, Jun 18, 202627518161323612
Wed, Jun 17, 202630698211432716
Tue, Jun 16, 202651173155325801240
Mon, Jun 15, 2026368510261839820
Sun, Jun 14, 202623596151129515
Sat, Jun 13, 2026562231663281141346
Fri, Jun 12, 202646137133522671135
Thu, Jun 11, 202630609181528714
Wed, Jun 10, 202621486151022511
Tue, Jun 9, 202622546151128511
Mon, Jun 8, 20264281122120391021
Sun, Jun 7, 202654107193824461123
Sat, Jun 6, 202610425344110411031952
Fri, Jun 5, 20266114230732151920
Thu, Jun 4, 20265413431721641721
Wed, Jun 3, 20264811231711229512
Tue, Jun 2, 20264784356391747
Mon, Jun 1, 202682132651041323511
Sun, May 31, 202655103448381437
Sat, May 30, 2026631015077101638
Fri, May 29, 2026771146087121849
Thu, May 28, 2026651055280101749
Wed, May 27, 202677177601401232410
Tue, May 26, 202683172651381324510
Mon, May 25, 202680176631361226514
Sun, May 24, 202692159731281522510
Sat, May 23, 2026113183891511826613
Fri, May 22, 2026121307962521936719
Thu, May 21, 2026124218981801933712
Wed, May 20, 2026112276892311740616
Tue, May 19, 202687172681331426613
Mon, May 18, 202697327772481552627
Sun, May 17, 20261584071263412344923
Sat, May 16, 20261292681012112149715
Fri, May 15, 20261323121042562041822
Thu, May 14, 20261312721032182141716
Wed, May 13, 202619267915559027581031
Tue, May 12, 202616982713772723651035
Mon, May 11, 20261463241162662238920
Sun, May 10, 20261362641082082248715
Sat, May 9, 20261917891567142667933
Fri, May 8, 20261494751204032247825
Thu, May 7, 20261684301383912156930
Wed, May 6, 2026127264111237132339
Tue, May 5, 20262491,0132299561646513
Mon, May 4, 202617834717133662127
Sun, May 3, 2026273763265743516210
Sat, May 2, 20261415411415410101
Fri, May 1, 20261527831527830000
Thu, Apr 30, 20261614801614800000
Wed, Apr 29, 20262686702686700000
Tue, Apr 28, 20263155503155500000
Mon, Apr 27, 20263162,0583162,0580000
Sun, Apr 26, 20263328353328350000
Sat, Apr 25, 20263569863569860000
Fri, Apr 24, 20264311,8054311,8050000
Thu, Apr 23, 20264532,6064532,6060000
Wed, Apr 22, 20263551,2473551,2470000
Tue, Apr 21, 20263561,0853561,0850000
Mon, Apr 20, 20261244521244520000
Sun, Apr 19, 20261564491564490000
Sat, Apr 18, 20263841,2363841,2360000
Fri, Apr 17, 20262769862769860000
Thu, Apr 16, 20263901,6413901,6410000
Wed, Apr 15, 20261,2092,6061,2092,6060000
Tue, Apr 14, 20261,2285,1301,2285,1300000
Mon, Apr 13, 20269923,7139923,7130000
Sun, Apr 12, 20266222,2496222,2490000
Sat, Apr 11, 20262341,6412341,6410000
Fri, Apr 10, 20263491,2803491,2800000
Thu, Apr 9, 20269824,7789824,7780000
Wed, Apr 8, 20262481,4362481,4360000
Tue, Apr 7, 202698505985050000
Mon, Apr 6, 20261264711264710000
Sun, Apr 5, 20262362,0112362,0110000
Sat, Apr 4, 20262026392026390000
Fri, Apr 3, 20263411,2443411,2440000
Thu, Apr 2, 202696487964870000
Wed, Apr 1, 20261304181304180000
Tue, Mar 31, 20261,2746,2741,2746,2740000
Mon, Mar 30, 20266533,7586533,7580000
Sun, Mar 29, 20263051,7843051,7840000
Sat, Mar 28, 20261193461193460000
Fri, Mar 27, 20261164001164000000
Thu, Mar 26, 20263869983869980000
Wed, Mar 25, 20263983,1323983,1320000
Tue, Mar 24, 20261509701509700000
Mon, Mar 23, 20261023001023000000
Sun, Mar 22, 20266272,7686272,7680000
Sat, Mar 21, 20262711,3672711,3670000
Fri, Mar 20, 20264401,6524401,6520000
Thu, Mar 19, 20261686481686480000
Wed, Mar 18, 202681145811450000
Tue, Mar 17, 20261641,3371641,3370000
Mon, Mar 16, 20261213771213770000
Sun, Mar 15, 20262001,5102001,5100000
Sat, Mar 14, 20261285501285500000
Fri, Mar 13, 202684203842030000
Thu, Mar 12, 202695275952750000
Wed, Mar 11, 202673117731170000
Tue, Mar 10, 20262575542575540000
Mon, Mar 9, 20264521,1804521,1800000
Sun, Mar 8, 20262038962038960000
Sat, Mar 7, 20263326713326710000
Fri, Mar 6, 20261373781373780000
Thu, Mar 5, 20261454471454470000
Wed, Mar 4, 20264641,7924641,7920000
Tue, Mar 3, 202664130641300000
Mon, Mar 2, 202667124671240000
Sun, Mar 1, 202666239662390000
Sat, Feb 28, 20261495861495860000
Fri, Feb 27, 20261545821545820000
Thu, Feb 26, 202629113291130000
Wed, Feb 25, 202651199511990000
Tue, Feb 24, 202657126571260000
Mon, Feb 23, 202667149671490000
Sun, Feb 22, 20261233231233230000
Sat, Feb 21, 202695156951560000
Fri, Feb 20, 20261586871586870000
Thu, Feb 19, 20262531,3432531,3430000
Wed, Feb 18, 20262391,6762391,6760000
Tue, Feb 17, 20261283591283590000
Mon, Feb 16, 202694376943760000
Sun, Feb 15, 202660131601310000
Sat, Feb 14, 202645157451570000
Fri, Feb 13, 202669110691100000
Thu, Feb 12, 202622100221000000
Wed, Feb 11, 2026277327730000
Tue, Feb 10, 202654346543460000
Mon, Feb 9, 2026134613460000
Sun, Feb 8, 202622106221060000
Sat, Feb 7, 2026144914490000
Fri, Feb 6, 202629160291600000
Thu, Feb 5, 2026123212320000
Wed, Feb 4, 202616133161330000
Tue, Feb 3, 2026268026800000
Mon, Feb 2, 2026132713270000
Sun, Feb 1, 2026133213320000
Sat, Jan 31, 2026101910190000
Fri, Jan 30, 2026175717570000
Thu, Jan 29, 2026168416840000
Wed, Jan 28, 2026154115410000
Tue, Jan 27, 2026149614960000
Mon, Jan 26, 20267227220000
Sun, Jan 25, 20267157150000
Sat, Jan 24, 20269169160000
Fri, Jan 23, 2026147914790000
Thu, Jan 22, 20266216210000
Wed, Jan 21, 20268158150000
Tue, Jan 20, 2026219121910000
Mon, Jan 19, 2026199519950000
Sun, Jan 18, 20266136130000
Sat, Jan 17, 202629146291460000
Fri, Jan 16, 202617117171170000
Thu, Jan 15, 2026102610260000
Wed, Jan 14, 2026236523650000
Tue, Jan 13, 202646262462620000
Mon, Jan 12, 202622240222400000
Sun, Jan 11, 202649156491560000
Sat, Jan 10, 202621104211040000
Fri, Jan 9, 202644103441030000
Thu, Jan 8, 202644302443020000
Wed, Jan 7, 2026178017800000
Tue, Jan 6, 20268218210000
Mon, Jan 5, 20268388380000
Sun, Jan 4, 2026101910190000
Sat, Jan 3, 2026102910290000
Fri, Jan 2, 20266146140000
Thu, Jan 1, 20265125120000
Wed, Dec 31, 20257217210000
Tue, Dec 30, 20255355350000
Mon, Dec 29, 2025136913690000
Sun, Dec 28, 2025108110810000
Sat, Dec 27, 20258288280000
Fri, Dec 26, 2025861,701861,7010000
Thu, Dec 25, 2025149014900000
Wed, Dec 24, 20259299290000
Tue, Dec 23, 2025188018800000
Mon, Dec 22, 20258228220000
Sun, Dec 21, 20257157150000
Sat, Dec 20, 20257147140000
Fri, Dec 19, 2025244924490000
Thu, Dec 18, 2025136713670101
Wed, Dec 17, 20257187180000
Tue, Dec 16, 20257167160000
Mon, Dec 15, 20256186180000
Sun, Dec 14, 20256136130000
Sat, Dec 13, 20259539530000
Fri, Dec 12, 20257137130000
Thu, Dec 11, 20256126120000
Wed, Dec 10, 20256126120000
Tue, Dec 9, 20256126120000
Mon, Dec 8, 20256126120000
Sun, Dec 7, 20255125110001
Sat, Dec 6, 20256184130015
Fri, Dec 5, 2025512370025
Thu, Dec 4, 2025512250037
Wed, Dec 3, 2025411130038
Tue, Dec 2, 20255130100512
Mon, Dec 1, 20256300000630
Sun, Nov 30, 20255120000512
Sat, Nov 29, 20256120000612
Fri, Nov 28, 20257240000724
Thu, Nov 27, 20255130000513
Wed, Nov 26, 20258410000841
Tue, Nov 25, 20257160000716
Mon, Nov 24, 20257160000716
Sun, Nov 23, 20257190000719
Sat, Nov 22, 20257130000713
Fri, Nov 21, 20257130000713
Thu, Nov 20, 20256130000613
Wed, Nov 19, 20257130000713
Tue, Nov 18, 20256120000612
Mon, Nov 17, 20258220000822
Sun, Nov 16, 20257290000729
Sat, Nov 15, 20258220000822
Fri, Nov 14, 20259210000921
Thu, Nov 13, 20258340000834
Wed, Nov 12, 2025124800001248
Tue, Nov 11, 20257210000721
Mon, Nov 10, 20255120000512
Sun, Nov 9, 20257130000713
Sat, Nov 8, 20256120000612
Fri, Nov 7, 20256170000617
Thu, Nov 6, 20257140000714
Wed, Nov 5, 20258160000816
Tue, Nov 4, 2025133000001330
Mon, Nov 3, 202521161000021161
Sun, Nov 2, 202523166000023166
Sat, Nov 1, 20258170000817
Fri, Oct 31, 2025114700001147
Thu, Oct 30, 2025135600001356
Wed, Oct 29, 2025138600001386
Tue, Oct 28, 2025177000001770
Mon, Oct 27, 2025143300001433
Sun, Oct 26, 20258240000824
Sat, Oct 25, 20257170000717
Fri, Oct 24, 20256150000615
Thu, Oct 23, 20255120000512
Wed, Oct 22, 2025124500001245
Tue, Oct 21, 2025133600001336
Mon, Oct 20, 2025198100001981
Sun, Oct 19, 2025224700002247
Sat, Oct 18, 202541106000041106
Fri, Oct 17, 2025367000003670
Thu, Oct 16, 2025224900002249
Wed, Oct 15, 2025398300003983
Tue, Oct 14, 202530108000030108
Mon, Oct 13, 2025318300003183
Sun, Oct 12, 2025477400004774
Sat, Oct 11, 202536131000036131
Fri, Oct 10, 2025204300002043
Thu, Oct 9, 2025335100003351
Wed, Oct 8, 2025329900003299
Tue, Oct 7, 2025318900003189
Mon, Oct 6, 202564168000064168
Sun, Oct 5, 202566328000066328
Sat, Oct 4, 202560150000060150
Fri, Oct 3, 202550158000050158
Thu, Oct 2, 202533128000033128
Wed, Oct 1, 202538123000038123
Tue, Sep 30, 202559146000059146
Mon, Sep 29, 202557145000057145
Sun, Sep 28, 202553134000053134
Sat, Sep 27, 202553146000053146
Fri, Sep 26, 202542154000042154
Thu, Sep 25, 2025367700003677
Wed, Sep 24, 202550109000050109
Tue, Sep 23, 2025399800003998
Mon, Sep 22, 202548117000048117
Sun, Sep 21, 202556106000056106
Sat, Sep 20, 202554108000054108
Fri, Sep 19, 202560144000060144