Pollen count in St. Louis today
Pollen in St. Louis, MO is None on Thu Nov 5. No tree, grass or weed pollen is forecast in the air.
5-day pollen forecast
| Day | Tree | Grass | Ragweed | Weed |
|---|---|---|---|---|
| Thu Nov 5 | None | None | None | None |
| Fri Nov 6 | None | None | None | None |
| Sat Nov 7 | None | None | None | None |
| Sun Nov 8 | None | None | None | None |
| Mon Nov 9 | None | None | None | None |
Scale: Universal Pollen Index, 0 None · 1 Very Low · 2 Low · 3 Moderate · 4 High · 5 Very High. What the numbers mean.
When is allergy season in St. Louis?
St. Louis follows the typical pattern for the Midwest. Dates move a few weeks with each year's weather.
| Pollen | Typical season | Notes |
|---|---|---|
| Tree | March to May | Elm and maple first, then oak, birch and cottonwood. |
| Grass | May to July | Peaks in June. |
| Ragweed | mid-August to the first frost | The Midwest and Great Plains have some of the heaviest ragweed in the country. |
| Mold | late summer and fall | Rises at harvest time and with wet leaves. |
Quietest time: Winter, from the first hard frost to March.
Get a pollen alert for St. Louis
Pollenary is a free iPhone app. Type ZIP 63101 (or your own), tick the pollen that bothers you, and it sends one push each morning when that pollen reaches your level, with the plants named. No account and no location tracking.
Questions
What is the pollen count in St. Louis today?
Pollen in St. Louis, MO is None on Thu Nov 5. No tree, grass or weed pollen is forecast in the air.
When is allergy season in St. Louis?
In the Midwest the typical seasons are: Tree: March to May; Grass: May to July; Ragweed: mid-August to the first frost; Mold: late summer and fall. The quiet time is winter, from the first hard frost to March. Exact dates move with the weather each year.
Which pollen is in the air in St. Louis right now?
Very little. On Thu Nov 5 the forecast shows no tree, grass or weed pollen above zero.
How can I get a pollen alert for St. Louis?
Pollenary sends a free morning push when the pollen you choose (tree, grass, ragweed, weed or mold) reaches your level in St. Louis. It needs no account; you type ZIP 63101 or any other ZIP.
Nearby cities
Pollen data by Google (Universal Pollen Index, 0–5). Pollen levels are a forecast, not a medical measurement. Pollenary is not a medical device and does not diagnose or treat any condition. Talk to a doctor about your allergies.