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
J
F
M
A
M
J
J
●
A
S
O
N
D
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 |
|---|---|---|---|
| Kansas City | Very Highas of Jul 12 | Grass | Moderate |
| Lees Summit | Very Highas of Jul 12 | Grass | Moderate |
| Webb City | Very Highas of Jul 12 | Grass | Moderate |
| Saint Joseph | Very Highas of Jul 12 | Grass | Moderate |
| Odessa | Very Highas of Jul 12 | Grass | Moderate |
| Smithville | Very Highas of Jul 12 | Grass | Moderate |
| Oronogo | Very Highas of Jul 12 | Grass | Moderate |
| Ballwin | Lowas of Jul 12 | Grass | Moderate |
| Mehlville | Lowas of Jul 12 | Grass | Moderate |
| Manchester | Lowas of Jul 12 | Grass | Moderate |
| Jefferson City | Noneas of Jul 12 | None | Moderate |
| Republic | Noneas of Jul 12 | None | Moderate |
| Poplar Bluff | Noneas of Jul 12 | None | Moderate |
| Sikeston | Noneas of Jul 12 | None | Moderate |
| Ava | Noneas of Jul 12 | None | Moderate |
| Kimberling City | Noneas of Jul 12 | None | Moderate |
| Hallsville | Noneas of Jul 12 | None | Moderate |
| Conway | Noneas of Jul 12 | None | Moderate |
| Rogersville | Noneas of Jul 12 | None | Moderate |
| Sunrise Beach | Noneas of Jul 12 | None | Moderate |
| St. Louis | No live reading | Not available | Moderate |
| Springfield | No live reading | Not available | Moderate |
| Columbia | No live reading | Not available | Moderate |
| Independence | No live reading | Not available | Moderate |
| O'fallon | No live reading | Not available | Moderate |
| Joplin | No live reading | Not available | Moderate |
| St. Joseph | No live reading | Not available | Moderate |
| St. Charles | No live reading | Not available | Moderate |
| Blue Springs | No live reading | Not available | Moderate |
| St. Peters | No live reading | Not available | Moderate |
| Florissant | No live reading | Not available | Moderate |
| Chesterfield | No live reading | Not available | Moderate |
| Wentzville | No live reading | Not available | Moderate |
| Cape Girardeau | No live reading | Not available | Moderate |
| Wildwood | No live reading | Not available | Moderate |
| Oakville | No live reading | Not available | Moderate |
| University City | No live reading | Not available | Moderate |
| Liberty | No live reading | Not available | Moderate |
| Raytown | No live reading | Not available | Moderate |
| Kirkwood | No live reading | Not available | Moderate |
| Maryland Heights | No live reading | Not available | Moderate |
| Gladstone | No live reading | Not available | Moderate |
| Grandview | No live reading | Not available | Moderate |
| Hazelwood | No live reading | Not available | Moderate |
| Belton | No live reading | Not available | Moderate |
| Nixa | No live reading | Not available | Moderate |
| Raymore | No live reading | Not available | Moderate |
| Webster Groves | No live reading | Not available | Moderate |
| Ozark | No live reading | Not available | Moderate |
| Sedalia | No live reading | Not available | Moderate |
| Old Jamestown | No live reading | Not available | Moderate |
| Arnold | No live reading | Not available | Moderate |
| Rolla | No live reading | Not available | Moderate |
| Affton | No live reading | Not available | Moderate |
| Warrensburg | No live reading | Not available | Moderate |
| Creve Coeur | No live reading | Not available | Moderate |
| Ferguson | No live reading | Not available | Moderate |
| Spanish Lake | No live reading | Not available | Moderate |
| Concord | No live reading | Not available | Moderate |
| Farmington | No live reading | Not available | Moderate |
| Lake St. Louis | No live reading | Not available | Moderate |
| Kirksville | No live reading | Not available | Moderate |
| Clayton | No live reading | Not available | Moderate |
| Hannibal | No live reading | Not available | Moderate |
| Lemay | No live reading | Not available | Moderate |
| Grain Valley | No live reading | Not available | Moderate |
| Overland | No live reading | Not available | Moderate |
| Jackson | No live reading | Not available | Moderate |
| Carthage | No live reading | Not available | Moderate |
| Fort Leonard Wood | No live reading | Not available | Moderate |
| Lebanon | No live reading | Not available | Moderate |
| Washington | No live reading | Not available | Moderate |
| Marshall | No live reading | Not available | Moderate |
| Moberly | No live reading | Not available | Moderate |
| Troy | No live reading | Not available | Moderate |
| Dardenne Prairie | No live reading | Not available | Moderate |
| Festus | No live reading | Not available | Moderate |
| Jennings | No live reading | Not available | Moderate |
| St. Ann | No live reading | Not available | Moderate |
| Neosho | No live reading | Not available | Moderate |
| Branson | No live reading | Not available | Moderate |
| Fulton | No live reading | Not available | Moderate |
| Union | No live reading | Not available | Moderate |
| Eureka | No live reading | Not available | Moderate |
| West Plains | No live reading | Not available | Moderate |
| Crestwood | No live reading | Not available | Moderate |
| Town and Country | No live reading | Not available | Moderate |
| Mexico | No live reading | Not available | Moderate |
| Bridgeton | No live reading | Not available | Moderate |
| Truxton | No live reading | Not available | Moderate |
| Marthasville | No live reading | Not available | Moderate |
| Camdenton | No live reading | Not available | Moderate |
| Peculiar | No live reading | Not available | Moderate |
| Licking | No live reading | Not available | Moderate |
| Bunker | No live reading | Not available | Moderate |
| Bonne Terre | No live reading | Not available | Moderate |
| New Bloomfield | No live reading | Not available | Moderate |
| Owensville | No live reading | Not available | Moderate |
| O Fallon | No live reading | Not available | Moderate |
| Clinton | No live reading | Not available | Moderate |
| Cassville | No live reading | Not available | Moderate |
| Dunnegan | No live reading | Not available | Moderate |
| Mountain Grove | No live reading | Not available | Moderate |
| Excelsior Springs | No live reading | Not available | Moderate |
| Macomb | No live reading | Not available | Moderate |
| Gallatin | No live reading | Not available | Moderate |
| Monett | No live reading | Not available | Moderate |
| Louisiana | No live reading | Not available | Moderate |
| Marshfield | No live reading | Not available | Moderate |
| Lake Saint Louis | No live reading | Not available | Moderate |
| Amsterdam | No live reading | Not available | Moderate |
| Richmond Heights | No live reading | Not available | Moderate |
| Saint Albans | No live reading | Not available | Moderate |
| Summersville | No live reading | Not available | Moderate |
| Morrisville | No live reading | Not available | Moderate |
| Pomona | No live reading | Not available | Moderate |
| Linn | No live reading | Not available | Moderate |
| Perryville | No live reading | Not available | Moderate |
| Farley | No live reading | Not available | Moderate |
| Rives | No live reading | Not available | Moderate |
| Silex | No live reading | Not available | Moderate |
| Everton | No live reading | Not available | Moderate |
| Catawissa | No live reading | Not available | Moderate |
| Pittsburg | No live reading | Not available | Moderate |
| Holden | No live reading | Not available | Moderate |
| Tipton | No live reading | Not available | Moderate |
| Sugar Creek | No live reading | Not available | Moderate |
| Rock Port | No live reading | Not available | Moderate |
| Hurdland | No live reading | Not available | Moderate |
| Prairie City | No live reading | Not available | Moderate |
| Imperial | No live reading | Not available | Moderate |
| Wright City | 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 |
| De Soto | No live reading | Not available | Moderate |
| Cedar Hill | No live reading | Not available | Moderate |
| Platte City | No live reading | Not available | Moderate |
| Weatherby Lake | No live reading | Not available | Moderate |
| Sullivan | No live reading | Not available | Moderate |
| Centerview | No live reading | Not available | Moderate |
| Moscow Mills | No live reading | Not available | Moderate |
| Valley Park | No live reading | Not available | Moderate |
| Nevada | No live reading | Not available | Moderate |
| Strafford | No live reading | Not available | Moderate |
| Boonville | No live reading | Not available | Moderate |
| Linn Creek | No live reading | Not available | Moderate |
| East Prairie | No live reading | Not available | Moderate |
| Sainte Genevieve | No live reading | Not available | Moderate |
| Huntsville | No live reading | Not available | Moderate |
| Airport Drive | No live reading | Not available | Moderate |
| Charlack | No live reading | Not available | Moderate |
| Elkland | No live reading | Not available | Moderate |
| Fordland | No live reading | Not available | Moderate |
| Clever | No live reading | Not available | Moderate |
| Arcadia | No live reading | Not available | Moderate |
| Lake Waukomis | No live reading | Not available | Moderate |
| Hermitage | No live reading | Not available | Moderate |
| North Kansas City | No live reading | Not available | Moderate |
| New Florence | No live reading | Not available | Moderate |
| Macon | No live reading | Not available | Moderate |
| Benton | No live reading | Not available | Moderate |
| Sibley | No live reading | Not available | Moderate |
| Saint Louis | No live reading | Not available | Moderate |
| Saint Mary | No live reading | Not available | Moderate |
| Winfield | No live reading | Not available | Moderate |
| Campbell | No live reading | Not available | Moderate |
| Seymour | No live reading | Not available | Moderate |
| Salem | No live reading | Not available | Moderate |
| Saint Charles | No live reading | Not available | Moderate |
| Trenton | No live reading | Not available | Moderate |
| Edwards | No live reading | Not available | Moderate |
| Galena | No live reading | Not available | Moderate |
| Defiance | No live reading | Not available | Moderate |
| Mound City | No live reading | Not available | Moderate |
| Harrisonville | No live reading | Not available | Moderate |
| Kennett | No live reading | Not available | Moderate |
| Seneca | No live reading | Not available | Moderate |
| Carl Junction | No live reading | Not available | Moderate |
| Tuscumbia | No live reading | Not available | Moderate |
| Macks Creek | No live reading | Not available | Moderate |
| Warsaw | No live reading | Not available | Moderate |
| Saint Peters | No live reading | Not available | Moderate |
| Fenton | No live reading | Not available | Moderate |
| Kearney | No live reading | Not available | Moderate |
| Portland | No live reading | Not available | Moderate |
| Foley | No live reading | Not available | Moderate |
| Kingston | No live reading | Not available | Moderate |
| High Ridge | No live reading | Not available | Moderate |
| Piedmont | 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.