Missouri pollen and allergy seasons
July outlookModerate
Missouri has a spring tree season and a heavy ragweed season in late summer and early fall.
Twelve month pollen calendar
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LowModerateHighVery high
Dominant species in July
Grass
Typical peak in July
No clear peak this month
Worst month of the year
September
Best month of the year
January
What is active in July
Grass
Cities in Missouri
| City | Today | Worst today | Typical in July |
|---|---|---|---|
| St. Charles | Very Highas of Jul 15 | Grass | Moderate |
| Ballwin | Very Highas of Jul 15 | Grass | Moderate |
| Liberty | Very Highas of Jul 15 | Grass | Moderate |
| Mehlville | Very Highas of Jul 15 | Grass | Moderate |
| Grandview | Very Highas of Jul 15 | Grass | Moderate |
| Raymore | Very Highas of Jul 15 | Grass | Moderate |
| Manchester | Very Highas of Jul 15 | Grass | Moderate |
| Overland | Very Highas of Jul 15 | Grass | Moderate |
| Crestwood | Very Highas of Jul 15 | Grass | Moderate |
| Goodman | Very Highas of Jul 15 | Grass | Moderate |
| Excelsior Springs | Very Highas of Jul 15 | Grass | Moderate |
| Louisiana | Very Highas of Jul 15 | Grass | Moderate |
| Lake Saint Louis | Very Highas of Jul 15 | Grass | Moderate |
| Richmond Heights | Very Highas of Jul 15 | Grass | Moderate |
| Saint Albans | Very Highas of Jul 15 | Grass | Moderate |
| Farley | Very Highas of Jul 15 | Grass | Moderate |
| Centerview | Very Highas of Jul 15 | Grass | Moderate |
| Moscow Mills | Very Highas of Jul 15 | Grass | Moderate |
| Valley Park | Very Highas of Jul 15 | Grass | Moderate |
| Sibley | Very Highas of Jul 15 | Grass | Moderate |
| Harrisonville | Very Highas of Jul 15 | Grass | Moderate |
| Carl Junction | Very Highas of Jul 15 | Grass | Moderate |
| St. Louis | Highas of Jul 15 | Grass | Moderate |
| O'fallon | Highas of Jul 15 | Grass | Moderate |
| Oakville | Highas of Jul 15 | Grass | Moderate |
| Platte City | Highas of Jul 15 | Grass | Moderate |
| Oronogo | Highas of Jul 15 | Grass | Moderate |
| Kearney | Highas of Jul 15 | Grass | Moderate |
| High Ridge | Highas of Jul 15 | Grass | Moderate |
| Kansas City | Moderateas of Jul 15 | Grass | Moderate |
| Independence | Moderateas of Jul 15 | Grass | Moderate |
| Lees Summit | Moderateas of Jul 15 | Grass | Moderate |
| St. Joseph | Moderateas of Jul 15 | Grass | Moderate |
| Blue Springs | Moderateas of Jul 15 | Grass | Moderate |
| Chesterfield | Moderateas of Jul 15 | Grass | Moderate |
| Wentzville | Moderateas of Jul 15 | Grass | Moderate |
| Wildwood | Moderateas of Jul 15 | Grass | Moderate |
| University City | Moderateas of Jul 15 | Grass | Moderate |
| Kirkwood | Moderateas of Jul 15 | Grass | Moderate |
| Maryland Heights | Moderateas of Jul 15 | Grass | Moderate |
| Gladstone | Moderateas of Jul 15 | Grass | Moderate |
| Hazelwood | Moderateas of Jul 15 | Grass | Moderate |
| Belton | Moderateas of Jul 15 | Grass | Moderate |
| Webster Groves | Moderateas of Jul 15 | Grass | Moderate |
| Old Jamestown | Moderateas of Jul 15 | Grass | Moderate |
| Arnold | Moderateas of Jul 15 | Grass | Moderate |
| Affton | Moderateas of Jul 15 | Grass | Moderate |
| Warrensburg | Moderateas of Jul 15 | Grass | Moderate |
| Creve Coeur | Moderateas of Jul 15 | Grass | Moderate |
| Concord | Moderateas of Jul 15 | Grass | Moderate |
| Lake St. Louis | Moderateas of Jul 15 | Grass | Moderate |
| Lemay | Moderateas of Jul 15 | Grass | Moderate |
| Grain Valley | Moderateas of Jul 15 | Grass | Moderate |
| Carthage | Moderateas of Jul 15 | Grass | Moderate |
| Washington | Moderateas of Jul 15 | Grass | Moderate |
| Dardenne Prairie | Moderateas of Jul 15 | Grass | Moderate |
| Jennings | Moderateas of Jul 15 | Grass | Moderate |
| Eureka | Moderateas of Jul 15 | Grass | Moderate |
| Town and Country | Moderateas of Jul 15 | Grass | Moderate |
| Bridgeton | Moderateas of Jul 15 | Grass | Moderate |
| Marthasville | Moderateas of Jul 15 | Grass | Moderate |
| Rives | Moderateas of Jul 15 | Grass | Moderate |
| Holden | Moderateas of Jul 15 | Grass | Moderate |
| Wright City | Moderateas of Jul 15 | Grass | Moderate |
| Odessa | Moderateas of Jul 15 | Grass | Moderate |
| Smithville | Moderateas of Jul 15 | Grass | Moderate |
| Nevada | Moderateas of Jul 15 | Grass | Moderate |
| Lake Waukomis | Moderateas of Jul 15 | Grass | Moderate |
| North Kansas City | Moderateas of Jul 15 | Grass | Moderate |
| Saint Louis | Moderateas of Jul 15 | Grass | Moderate |
| Saint Charles | Moderateas of Jul 15 | Grass | Moderate |
| Defiance | Moderateas of Jul 15 | Grass | Moderate |
| Saint Peters | Moderateas of Jul 15 | Grass | Moderate |
| Fenton | Moderateas of Jul 15 | Grass | Moderate |
| Kingston | Moderateas of Jul 15 | Grass | Moderate |
| Joplin | Lowas of Jul 15 | Grass | Moderate |
| Webb City | Lowas of Jul 15 | Grass | Moderate |
| Airport Drive | Lowas of Jul 15 | Grass | Moderate |
| Springfield | Noneas of Jul 15 | None | Moderate |
| Columbia | Noneas of Jul 15 | None | Moderate |
| Jefferson City | Noneas of Jul 15 | None | Moderate |
| Cape Girardeau | Noneas of Jul 15 | None | Moderate |
| Nixa | Noneas of Jul 15 | None | Moderate |
| Ozark | Noneas of Jul 15 | None | Moderate |
| Sedalia | Noneas of Jul 15 | None | Moderate |
| Rolla | Noneas of Jul 15 | None | Moderate |
| Republic | Noneas of Jul 15 | None | Moderate |
| Farmington | Noneas of Jul 15 | None | Moderate |
| Kirksville | Noneas of Jul 15 | None | Moderate |
| Hannibal | Noneas of Jul 15 | None | Moderate |
| Poplar Bluff | Noneas of Jul 15 | None | Moderate |
| Sikeston | Noneas of Jul 15 | None | Moderate |
| Jackson | Noneas of Jul 15 | None | Moderate |
| Fort Leonard Wood | Noneas of Jul 15 | None | Moderate |
| Lebanon | Noneas of Jul 15 | None | Moderate |
| Marshall | Noneas of Jul 15 | None | Moderate |
| Moberly | Noneas of Jul 15 | None | Moderate |
| Festus | Noneas of Jul 15 | None | Moderate |
| Branson | Noneas of Jul 15 | None | Moderate |
| Fulton | Noneas of Jul 15 | None | Moderate |
| West Plains | Noneas of Jul 15 | None | Moderate |
| Mexico | Noneas of Jul 15 | None | Moderate |
| Camdenton | Noneas of Jul 15 | None | Moderate |
| Bunker | Noneas of Jul 15 | None | Moderate |
| Bonne Terre | Noneas of Jul 15 | None | Moderate |
| New Bloomfield | Noneas of Jul 15 | None | Moderate |
| Owensville | Noneas of Jul 15 | None | Moderate |
| Ava | Noneas of Jul 15 | None | Moderate |
| Clinton | Noneas of Jul 15 | None | Moderate |
| Cassville | Noneas of Jul 15 | None | Moderate |
| Mountain Grove | Noneas of Jul 15 | None | Moderate |
| Macomb | Noneas of Jul 15 | None | Moderate |
| Gallatin | Noneas of Jul 15 | None | Moderate |
| Monett | Noneas of Jul 15 | None | Moderate |
| Marshfield | Noneas of Jul 15 | None | Moderate |
| Summersville | Noneas of Jul 15 | None | Moderate |
| Morrisville | Noneas of Jul 15 | None | Moderate |
| Pomona | Noneas of Jul 15 | None | Moderate |
| Perryville | Noneas of Jul 15 | None | Moderate |
| Silex | Noneas of Jul 15 | None | Moderate |
| Everton | Noneas of Jul 15 | None | Moderate |
| Pittsburg | Noneas of Jul 15 | None | Moderate |
| Rock Port | Noneas of Jul 15 | None | Moderate |
| Kimberling City | Noneas of Jul 15 | None | Moderate |
| Hurdland | Noneas of Jul 15 | None | Moderate |
| Prairie City | Noneas of Jul 15 | None | Moderate |
| De Soto | Noneas of Jul 15 | None | Moderate |
| Cedar Hill | Noneas of Jul 15 | None | Moderate |
| Hallsville | Noneas of Jul 15 | None | Moderate |
| Sullivan | Noneas of Jul 15 | None | Moderate |
| Conway | Noneas of Jul 15 | None | Moderate |
| Strafford | Noneas of Jul 15 | None | Moderate |
| Boonville | Noneas of Jul 15 | None | Moderate |
| East Prairie | Noneas of Jul 15 | None | Moderate |
| Huntsville | Noneas of Jul 15 | None | Moderate |
| Elkland | Noneas of Jul 15 | None | Moderate |
| Fordland | Noneas of Jul 15 | None | Moderate |
| Clever | Noneas of Jul 15 | None | Moderate |
| Hermitage | Noneas of Jul 15 | None | Moderate |
| New Florence | Noneas of Jul 15 | None | Moderate |
| Macon | Noneas of Jul 15 | None | Moderate |
| Benton | Noneas of Jul 15 | None | Moderate |
| Truxton | Noneas of Jul 15 | None | Moderate |
| Campbell | Noneas of Jul 15 | None | Moderate |
| Seymour | Noneas of Jul 15 | None | Moderate |
| Rogersville | Noneas of Jul 15 | None | Moderate |
| Salem | Noneas of Jul 15 | None | Moderate |
| Trenton | Noneas of Jul 15 | None | Moderate |
| Edwards | Noneas of Jul 15 | None | Moderate |
| Galena | Noneas of Jul 15 | None | Moderate |
| Mound City | Noneas of Jul 15 | None | Moderate |
| Kennett | Noneas of Jul 15 | None | Moderate |
| Tuscumbia | Noneas of Jul 15 | None | Moderate |
| Warsaw | Noneas of Jul 15 | None | Moderate |
| Portland | Noneas of Jul 15 | None | Moderate |
| St. Peters | No live reading | Not available | Moderate |
| Florissant | No live reading | Not available | Moderate |
| Raytown | No live reading | Not available | Moderate |
| Ferguson | No live reading | Not available | Moderate |
| Spanish Lake | No live reading | Not available | Moderate |
| Clayton | No live reading | Not available | Moderate |
| Troy | No live reading | Not available | Moderate |
| St. Ann | No live reading | Not available | Moderate |
| Neosho | No live reading | Not available | Moderate |
| Union | No live reading | Not available | Moderate |
| Licking | No live reading | Not available | Moderate |
| Saint Joseph | No live reading | Not available | Moderate |
| O Fallon | No live reading | Not available | Moderate |
| Dunnegan | No live reading | Not available | Moderate |
| Amsterdam | No live reading | Not available | Moderate |
| Linn | No live reading | Not available | Moderate |
| Catawissa | No live reading | Not available | Moderate |
| Tipton | No live reading | Not available | Moderate |
| Sugar Creek | No live reading | Not available | Moderate |
| Imperial | No live reading | Not available | Moderate |
| Leawood | No live reading | Not available | Moderate |
| Dittmer | No live reading | Not available | Moderate |
| Eugene | No live reading | Not available | Moderate |
| Weatherby Lake | No live reading | Not available | Moderate |
| Linn Creek | No live reading | Not available | Moderate |
| Sainte Genevieve | No live reading | Not available | Moderate |
| Charlack | No live reading | Not available | Moderate |
| Arcadia | No live reading | Not available | Moderate |
| Saint Mary | No live reading | Not available | Moderate |
| Winfield | No live reading | Not available | Moderate |
| Seneca | No live reading | Not available | Moderate |
| Macks Creek | No live reading | Not available | Moderate |
| Foley | No live reading | Not available | Moderate |
| Sunrise Beach | No live reading | Not available | Moderate |
| Piedmont | No live reading | Not available | Moderate |
| Peculiar | No live reading | Not available | Moderate |
Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.
The Missouri allergy season
Allergy levels in Missouri peak in September, when ragweed pollen runs highest. The season moves through tree pollen around April, grass in June, weed pollen such as ragweed in September. Levels start to climb around February. The lowest pollen levels of the year arrive in January.
Common questions
When does allergy season start in Missouri?
Pollen levels in Missouri usually begin climbing in February and reach their highest point in September.
What is the worst month for allergies in Missouri?
September is typically the worst month in Missouri, driven by ragweed pollen.
When does ragweed season end in Missouri?
Ragweed pollen in Missouri usually fades by the end of October, after the first hard frost in colder areas.
When is the best time for allergies in Missouri?
January usually brings the lowest pollen levels of the year in Missouri.