Pollen Monitor
Daily pollen insights

Daily pollen overview

Fort Collins 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/Denver

Total

72

Average

117

Peak

Tree

None

0

Average

0

Peak

Grass

None

0

Average

0

Peak

Ragweed

High

72

Average

117

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

Ragweed72

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, 2026Latest72117000072117
Mon, Oct 12, 202660105000060105
Sun, Oct 11, 202666105000066105
Sat, Oct 10, 202657105000057105
Fri, Oct 9, 2026588200005882
Thu, Oct 8, 2026478800004788
Wed, Oct 7, 202662100000062100
Tue, Oct 6, 2026548300005483
Mon, Oct 5, 2026638700006387
Sun, Oct 4, 202661111000061111
Sat, Oct 3, 202667122590062113
Fri, Oct 2, 2026571189180048100
Thu, Oct 1, 2026561341638004096
Wed, Sep 30, 2026611112343003768
Tue, Sep 29, 2026621543177003177
Mon, Sep 28, 2026611183059003059
Sun, Sep 27, 202658822941002941
Sat, Sep 26, 2026511042652002552
Fri, Sep 25, 2026621243162003162
Thu, Sep 24, 2026711263563003563
Wed, Sep 23, 2026691483574003574
Tue, Sep 22, 202664823241003141
Mon, Sep 21, 2026721223761003561
Sun, Sep 20, 202666883344003344
Sat, Sep 19, 2026701983599003599
Fri, Sep 18, 2026681723486003486
Thu, Sep 17, 2026871684384004384
Wed, Sep 16, 2026671803490003490
Tue, Sep 15, 2026691123556003556
Mon, Sep 14, 2026661303365003365
Sun, Sep 13, 202669983449003449
Sat, Sep 12, 2026621283164003164
Fri, Sep 11, 202651582529002529
Thu, Sep 10, 202655862743002743
Wed, Sep 9, 2026771083854003854
Tue, Sep 8, 2026771303865003865
Mon, Sep 7, 202683202421010042101
Sun, Sep 6, 202667963448003448
Sat, Sep 5, 202652702635002635
Fri, Sep 4, 202657782939002939
Thu, Sep 3, 2026631302960003470
Wed, Sep 2, 2026561202655003065
Tue, Sep 1, 2026671453167003678
Mon, Aug 31, 202656802231463043
Sun, Aug 30, 20268318432716144599
Sat, Aug 29, 202666862533563647
Fri, Aug 28, 202650651925352735
Thu, Aug 27, 202651852033462846
Wed, Aug 26, 202654652125452935
Tue, Aug 25, 202646881834362548
Mon, Aug 24, 202648911935372649
Sun, Aug 23, 202637661425352036
Sat, Aug 22, 202637481419332026
Fri, Aug 21, 202644941736372451
Thu, Aug 20, 202641491619332227
Wed, Aug 19, 202636491419232027
Tue, Aug 18, 202652842032462846
Mon, Aug 17, 202633491319231827
Sun, Aug 16, 202633441317231824
Sat, Aug 15, 202629391115231621
Fri, Aug 14, 202632411216231722
Thu, Aug 13, 202633361314221820
Wed, Aug 12, 202631441217231724
Tue, Aug 11, 202632541221241829
Mon, Aug 10, 20262331912121317
Sun, Aug 9, 202630541221241729
Sat, Aug 8, 20262340915131222
Fri, Aug 7, 202625361014121420
Thu, Aug 6, 20262429911221316
Wed, Aug 5, 20261928711121015
Tue, Aug 4, 20262129811121216
Mon, Aug 3, 2026212778561013
Sun, Aug 2, 2026213057691014
Sat, Aug 1, 202623303410131013
Fri, Jul 31, 20262431121317912
Thu, Jul 30, 2026202500131679
Wed, Jul 29, 20262229001419810
Tue, Jul 28, 20262229001419810
Mon, Jul 27, 20262531001620911
Sun, Jul 26, 2026212500131679
Sat, Jul 25, 20262129001419710
Fri, Jul 24, 2026192600131779
Thu, Jul 23, 20262228001418810
Wed, Jul 22, 20262128001418710
Tue, Jul 21, 20262329001519810
Mon, Jul 20, 20262229001419810
Sun, Jul 19, 20262231001420811
Sat, Jul 18, 20262331001520811
Fri, Jul 17, 20262431001620911
Thu, Jul 16, 20262429001619810
Wed, Jul 15, 202630390019251014
Tue, Jul 14, 20262232001521811
Mon, Jul 13, 202629400018261014
Sun, Jul 12, 202636740023481326
Sat, Jul 11, 202631400020261114
Fri, Jul 10, 202630400020261114
Thu, Jul 9, 202635530023341219
Wed, Jul 8, 202630420019271115
Tue, Jul 7, 20262267017211546
Mon, Jul 6, 20262035137121221
Sun, Jul 5, 2026783748403115340181
Sat, Jul 4, 20265717393123712571
Fri, Jul 3, 20262911451813521144
Thu, Jul 2, 20263810692518481233
Wed, Jul 1, 202644101132722491026
Tue, Jun 30, 20264579132422411018
Mon, Jun 29, 20264672132222341118
Sun, Jun 28, 2026396311181932913
Sat, Jun 27, 20263318110561683842
Fri, Jun 26, 202624487151223612
Thu, Jun 25, 202623486151122511
Wed, Jun 24, 202633759231635817
Tue, Jun 23, 202643120123721551028
Mon, Jun 22, 2026375910181827914
Sun, Jun 21, 202626547151328611
Sat, Jun 20, 2026365510171827814
Fri, Jun 19, 20265076142324361219
Thu, Jun 18, 2026602331760291131460
Wed, Jun 17, 20264016211501974938
Tue, Jun 16, 202646133134122611131
Mon, Jun 15, 2026358110211739821
Sun, Jun 14, 2026492331472231071154
Sat, Jun 13, 2026652091959321071543
Fri, Jun 12, 2026377811241840818
Thu, Jun 11, 202657132164028641334
Wed, Jun 10, 202669150204234771631
Tue, Jun 9, 202665147184031711538
Mon, Jun 8, 202653112153426521226
Sun, Jun 7, 20264013814501860828
Sat, Jun 6, 202611229548122441222054
Fri, Jun 5, 20265212926661846817
Thu, Jun 4, 20264910328551432716
Wed, Jun 3, 20265511135731428512
Tue, Jun 2, 202684157611171632713
Mon, Jun 1, 202682147651141322511
Sun, May 31, 2026621004979101835
Sat, May 30, 202675132591001221411
Fri, May 29, 202686179681411433510
Thu, May 28, 202697181761371529615
Wed, May 27, 202691180721391427614
Tue, May 26, 20267521959172124048
Mon, May 25, 202665222511711034417
Sun, May 24, 2026602924824594037
Sat, May 23, 202691245721961435517
Fri, May 22, 2026118247931911839721
Thu, May 21, 20261726661395982454920
Wed, May 20, 20261442721132102243923
Tue, May 19, 20261272911002211946824
Mon, May 18, 2026121260952091936718
Sun, May 17, 20261522311201822442816
Sat, May 16, 2026116278912331839616
Fri, May 15, 20261276371045711747621
Thu, May 14, 2026105188821471629614
Wed, May 13, 20261657111336402473926
Tue, May 12, 20261282601012172037717
Mon, May 11, 20261442051131622237815
Sun, May 10, 20261683811343322551925
Sat, May 9, 20261463531162932253826
Fri, May 8, 202618439714734627491024
Thu, May 7, 2026118483974311437615
Wed, May 6, 2026691256110371616
Tue, May 5, 20261444611314261025325
Mon, May 4, 202612431111930141416
Sun, May 3, 202614834814333731116
Sat, May 2, 20261102761102720202
Fri, May 1, 20261385601385600000
Thu, Apr 30, 20261795191795190000
Wed, Apr 29, 20261818951818950000
Tue, Apr 28, 20262231,5802231,5800000
Mon, Apr 27, 20261979381979380000
Sun, Apr 26, 20261836241836240000
Sat, Apr 25, 20261574251574250000
Fri, Apr 24, 20261202771202770000
Thu, Apr 23, 20262971,5852971,5850000
Wed, Apr 22, 20263771,3303771,3300000
Tue, Apr 21, 20263502,6893502,6890000
Mon, Apr 20, 20261282811282810000
Sun, Apr 19, 20263181,6713181,6710000
Sat, Apr 18, 20263583,7533583,7530000
Fri, Apr 17, 20261326631326630000
Thu, Apr 16, 20264562,3234562,3230000
Wed, Apr 15, 20262139592139590000
Tue, Apr 14, 20266133,7006133,7000000
Mon, Apr 13, 20268493,9268493,9260000
Sun, Apr 12, 20263001,7133001,7130000
Sat, Apr 11, 20264331,6094331,6090000
Fri, Apr 10, 20264294,7504294,7500000
Thu, Apr 9, 20265042,1535042,1530000
Wed, Apr 8, 20264001,4204001,4200000
Tue, Apr 7, 20261634151634150000
Mon, Apr 6, 20262908892908890000
Sun, Apr 5, 20262612,3132612,3130000
Sat, Apr 4, 20264344,1384344,1380000
Fri, Apr 3, 20264812,7214812,7210000
Thu, Apr 2, 20264724,6234724,6230000
Wed, Apr 1, 20261798361798360000
Tue, Mar 31, 20266703,4246703,4240000
Mon, Mar 30, 20266644,6996644,6990000
Sun, Mar 29, 20266032,3976032,3970000
Sat, Mar 28, 20262217982217980000
Fri, Mar 27, 20263111,3273111,3270000
Thu, Mar 26, 20268404,0108404,0100000
Wed, Mar 25, 20267943,8697943,8690000
Tue, Mar 24, 20264153,2214153,2210000
Mon, Mar 23, 20265042,6975042,6970000
Sun, Mar 22, 20266492,3116492,3110000
Sat, Mar 21, 20263271,2103271,2100000
Fri, Mar 20, 20264732,1644732,1640000
Thu, Mar 19, 20264222,0674222,0670000
Wed, Mar 18, 20262771,4582771,4580000
Tue, Mar 17, 20263102,6973102,6970000
Mon, Mar 16, 202697264972640000
Sun, Mar 15, 20262411,0452411,0450000
Sat, Mar 14, 20262504622504620000
Fri, Mar 13, 20263391,1973391,1970000
Thu, Mar 12, 20261514171514170000
Wed, Mar 11, 20261207511207510000
Tue, Mar 10, 20262177712177710000
Mon, Mar 9, 20262406632406630000
Sun, Mar 8, 20261549271549270000
Sat, Mar 7, 20261253331253330000
Fri, Mar 6, 20261125641125640000
Thu, Mar 5, 20261092141092140000
Wed, Mar 4, 20263481,7983481,7980000
Tue, Mar 3, 20261695911695910000
Mon, Mar 2, 20262211,1312211,1310000
Sun, Mar 1, 20261373831373830000
Sat, Feb 28, 20261645231645230000
Fri, Feb 27, 20261766821766820000
Thu, Feb 26, 20263021,1823021,1820000
Wed, Feb 25, 20263491,3543491,3540000
Tue, Feb 24, 20261553651553650000
Mon, Feb 23, 202650198501980000
Sun, Feb 22, 202674198741980000
Sat, Feb 21, 202695412954120000
Fri, Feb 20, 2026559555950000
Thu, Feb 19, 20261003751003750000
Wed, Feb 18, 202674146741460000
Tue, Feb 17, 20261022781022780000
Mon, Feb 16, 20261454651454650000
Sun, Feb 15, 202675142751420000
Sat, Feb 14, 202673184731840000
Fri, Feb 13, 20261446751446750000
Thu, Feb 12, 202662110621100000
Wed, Feb 11, 202683248832480000
Tue, Feb 10, 202677193771930000
Mon, Feb 9, 202692351923510000
Sun, Feb 8, 202696241962410000
Sat, Feb 7, 202671246712460000
Fri, Feb 6, 202654154541540000
Thu, Feb 5, 202674543745430000
Wed, Feb 4, 202689494894940000
Tue, Feb 3, 202667162671620000
Mon, Feb 2, 20261674121674120000
Sun, Feb 1, 202655389553890000
Sat, Jan 31, 202666473664730000
Fri, Jan 30, 202672312723120000
Thu, Jan 29, 20261374471374470000
Wed, Jan 28, 20263025,1983025,1980000
Tue, Jan 27, 20262694,5622694,5620000
Mon, Jan 26, 20261341,0111341,0110000
Sun, Jan 25, 2026159615960000
Sat, Jan 24, 2026154615460000
Fri, Jan 23, 20268208200000
Thu, Jan 22, 2026218421840000
Wed, Jan 21, 20262023,4692023,4690000
Tue, Jan 20, 202648324483240000
Mon, Jan 19, 202623182231820000
Sun, Jan 18, 20265985,2415985,2410000
Sat, Jan 17, 20261307221307220000
Fri, Jan 16, 20261552,0471552,0470000
Thu, Jan 15, 20261032511032510000
Wed, Jan 14, 202655150551500000
Tue, Jan 13, 202668243682430000
Mon, Jan 12, 202636139361390000
Sun, Jan 11, 202673372733720000
Sat, Jan 10, 20262715,9592715,9590000
Fri, Jan 9, 202627112271120000
Thu, Jan 8, 202691704917040000
Wed, Jan 7, 202678414784140000
Tue, Jan 6, 20262042,8302042,8300000
Mon, Jan 5, 202649153491530000
Sun, Jan 4, 20262181,1552181,1550000
Sat, Jan 3, 20261381,5991381,5990000
Fri, Jan 2, 202653190531900000
Thu, Jan 1, 202686549865490000
Wed, Dec 31, 202525112251120000
Tue, Dec 30, 2025197319730000
Mon, Dec 29, 20252973,3522973,3520000
Sun, Dec 28, 202533142331420000
Sat, Dec 27, 202568202682020000
Fri, Dec 26, 202565331653310000
Thu, Dec 25, 202554256542560000
Wed, Dec 24, 202543115431150000
Tue, Dec 23, 202554430544300000
Mon, Dec 22, 20251116321116320000
Sun, Dec 21, 202528225282250000
Sat, Dec 20, 202519143191430000
Fri, Dec 19, 2025269726970000
Thu, Dec 18, 2025206220620000
Wed, Dec 17, 2025195819580000
Tue, Dec 16, 20251676731676730000
Mon, Dec 15, 20257147140000
Sun, Dec 14, 2025104610460000
Sat, Dec 13, 2025124612460000
Fri, Dec 12, 2025153915390000
Thu, Dec 11, 2025278127810000
Wed, Dec 10, 2025229822980000
Tue, Dec 9, 2025136913690000
Mon, Dec 8, 2025113711370000
Sun, Dec 7, 20256156140002
Sat, Dec 6, 20256134100013
Fri, Dec 5, 2025612370025
Thu, Dec 4, 2025612350037
Wed, Dec 3, 2025513140049
Tue, Dec 2, 20258501700743
Mon, Dec 1, 20256140000614
Sun, Nov 30, 20255120000512
Sat, Nov 29, 20255220000522
Fri, Nov 28, 20259250000925
Thu, Nov 27, 2025106500001065
Wed, Nov 26, 2025115100001151
Tue, Nov 25, 2025143000001430
Mon, Nov 24, 2025135800001358
Sun, Nov 23, 2025124500001245
Sat, Nov 22, 20259210000921
Fri, Nov 21, 20257200000720
Thu, Nov 20, 2025114900001149
Wed, Nov 19, 2025133900001339
Tue, Nov 18, 2025196900001969
Mon, Nov 17, 2025214400002144
Sun, Nov 16, 2025145000001450
Sat, Nov 15, 2025224000002240
Fri, Nov 14, 2025216000002160
Thu, Nov 13, 2025164600001646
Wed, Nov 12, 2025144800001448
Tue, Nov 11, 2025279000002790
Mon, Nov 10, 2025114000001140
Sun, Nov 9, 20259200000920
Sat, Nov 8, 2025123600001236
Fri, Nov 7, 2025236400002364
Thu, Nov 6, 202546160000046160
Wed, Nov 5, 2025144900001449
Tue, Nov 4, 2025101800001018
Mon, Nov 3, 2025176000001760
Sun, Nov 2, 2025165900001659
Sat, Nov 1, 2025102100001021
Fri, Oct 31, 2025115200001152
Thu, Oct 30, 2025114200001142
Wed, Oct 29, 2025143000001430
Tue, Oct 28, 2025144800001448
Mon, Oct 27, 202526212000026212
Sun, Oct 26, 2025147600001476
Sat, Oct 25, 2025186900001869
Fri, Oct 24, 2025157500001575
Thu, Oct 23, 2025138200001382
Wed, Oct 22, 202528169000028169
Tue, Oct 21, 202520100000020100
Mon, Oct 20, 2025307500003075
Sun, Oct 19, 2025156200001562
Sat, Oct 18, 2025155200001552
Fri, Oct 17, 2025369600003696
Thu, Oct 16, 2025359200003592
Wed, Oct 15, 2025326900003269
Tue, Oct 14, 2025184100001841
Mon, Oct 13, 2025316000003160
Sun, Oct 12, 2025407600004076
Sat, Oct 11, 2025247800002478
Fri, Oct 10, 2025269700002697
Thu, Oct 9, 202542221000042221
Wed, Oct 8, 202530111000030111
Tue, Oct 7, 2025357500003575
Mon, Oct 6, 2025234500002345
Sun, Oct 5, 2025377500003775
Sat, Oct 4, 202550168000050168
Fri, Oct 3, 2025339300003393
Thu, Oct 2, 202542130000042130
Wed, Oct 1, 202543183000043183
Tue, Sep 30, 202543172000043172
Mon, Sep 29, 202546123000046123
Sun, Sep 28, 202545171000045171
Sat, Sep 27, 202549102000049102
Fri, Sep 26, 202537135000037135
Thu, Sep 25, 202559171000059171
Wed, Sep 24, 2025478600004786
Tue, Sep 23, 202542126000042126
Mon, Sep 22, 2025417700004177
Sun, Sep 21, 202555128000055128
Sat, Sep 20, 202543103000043103
Fri, Sep 19, 202552144000052144