St. Mary's, CO Pollen Count Today
St. Mary's, CO · Updated Saturday, November 7, 2026
Pollen Overview
Today's overall pollen level and the dominant type (trees, weeds, grass, or mold).
Total Pollen Index
The combined pollen level across all types (0–100).
St. Mary's, CO
Grass Index
How active grass pollen is today (0–100).
St. Mary's, CO
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day St. Mary's Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count St. Mary's residents check each morning
The St. Mary's pollen count today is 25 (Low). No single plant stands out in today’s readings; the Grass category is the one the index is led by. The full split is tree pollen 0.6, grass pollen 32, weed pollen 0.6. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Saturday, November 7, 2026.
A Low band on the Pollen Atlas index means the Total Pollen Index has stayed in the lower part of the 0–100 scale. Readings in this band are built from low individual category values rather than from one large spike, and the category split above matters more than the headline number: a low total can still contain one category, such as grass pollen, reading noticeably higher than the rest, which is why the split is printed on every St. Mary's page.
Higher-elevation Mountain West cities generally run a shorter outdoor pollen season than the coasts or the South, with the main tree and grass activity compressed into the warmer months. Autumn and winter pages in this region are therefore commonly quiet, with low totals built from small weed and mold values. A low reading in this region and season is the expected pattern, and any future rise will show first in the category split and the forecast, not in the headline alone.
To see whether today’s pollen level holds, check the 5-day St. Mary's pollen forecast below — it is currently mixed, with Saturday the highest day in the window.
This is the pollen count St. Mary's residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the St. Mary's pollen count today?
The St. Mary's pollen count today is 25 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Grass.
Short answer for anyone searching pollen count today St. Mary's: this page is updated every morning with the day’s modelled reading.
St. Mary's allergies today
St. Mary's allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 25 (Low), driven mainly by Grass. When people ask about St. Mary's allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for St. Mary's.
Allergies in St. Mary's follow the Colorado calendar set out below — the chapters, the plants behind them, and the 5-day forecast on this page show whether today is typical for the season or an exception to it. If you are checking allergies today in St. Mary's before heading outdoors, the split at the top of this page is the part to read: it shows which pollen is doing the work today, not just how high the total sits.
Read the five-day table on this page as the St. Mary's allergy forecast: today reads 25 (Low), and the day-by-day outlook shows whether St. Mary's allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.
In practice, the allergy count St. Mary's today records is this same combined reading — tree, grass, weed and mold in one index.
The St. Mary's allergy count today is 25 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today St. Mary's: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 25 | Low |
| Sunday, November 8 | 22 | Low |
| Monday, November 9 | 25 | Low |
| Tuesday, November 10 | 25 | Low |
| Wednesday, November 11 | 25 | Low |
Pollen Atlas forecasts St. Mary's’s pollen count to peak on Saturday at 25 (Low) over the next 5 days.
Pollen by type in St. Mary's
What is driving St. Mary's’s pollen today
The shape of today’s 25 (Low) is set by grass pollen at 32 (Low on its own scale) — about 96% of the four category readings added together, 31.4 points clear of the next category, tree pollen at 0.6. Grass-led totals tend to hold a level for days at a time rather than spike and clear, because grasses pollinate over an extended period. Grass pollen leading in November runs against the usual calendar — the Colorado grass chapter runs May to July — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.
Plant-level detail is not in today’s feed for St. Mary's, so the drivers have to be read from the category split above. The Colorado guide’s account of Colorado names juniper, arriving ahead of the local tree season, and the ragweed and sagebrush-family weeds of late summer — the pollens behind readings of this shape in this state — and the split shows how much of today’s total each category is actually carrying.
Across the five-day window the Total Pollen Index runs from 22 to 25, never changing band. Today’s 25 sits 1 point above the window’s average of 24.4 — a steady window, in which one day reads much like the next.
Plants affecting St. Mary's now
Detailed plant-by-plant readings for St. Mary's were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.
Tree pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 32 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
In the Mountain West pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in a compressed warm-season window — named here as regional context only, not as today\u2019s measurements.
Plant detail returns here automatically on any day the source data includes it.
Every pollen type, with photos and seasons: the pollen directory.
St. Mary's pollen through the year
Three chapters make the Colorado pollen year, and St. Mary's follows them in the Mountain West order. The tree chapter: juniper can arrive in late winter, and the main tree wave builds in spring — as late as April at Denver’s altitude. The grass chapter: grasses follow in a compressed early-summer run. The weed chapter: ragweed and sagebrush-family weeds close the year from late summer.
Altitude compresses Colorado’s season rather than removing it: the waves arrive late — Denver’s tree pollen typically builds in April — and end with early frosts, but they run in a tight sequence. The season ends with the first hard frosts, which stop the late-summer weeds — Denver usually reaches frost in fall, while mountain towns can frost far earlier. The Colorado guide singles out juniper, arriving ahead of the local tree season, and the ragweed and sagebrush-family weeds of late summer.
November falls between the main chapters of the Colorado pollen year — the tail of one and the approach of the next — so the calendar alone explains little today, and the modelled split above carries the story. Between them, the three chapters cover 9 months of the Colorado year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. The full calendar is set out in the Colorado allergy season guide.
How to read this index
Pollen Atlas reports the St. Mary's pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down whatever the month. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.
St. Mary's in today’s national picture
At 25 (Low), St. Mary's ranks joint 33676th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Beja, Portugal at 52, and the lowest is Los Ángeles de San Rafael, Spain at 5. The whole table spans 47 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around St. Mary's: Downieville-Lawson-Dumont, CO (4 miles away) reads 25 (Low); Empire, CO (4 miles away) reads 26 (Low); Georgetown, CO (7 miles away) reads 25 (Low). St. Mary's reads exactly level with its nearest tracked neighbour today. Across Colorado’s 479 tracked cities, today runs from 5 in Parker to 33 in Cathedral.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one St. Mary's resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in St. Mary's, CO can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.
St. Mary's in its local area
Across Colorado’s 479 tracked cities, St. Mary's ranks joint 85th today.
Like every Pollen Atlas city page, the St. Mary's, CO pollen count is refreshed each morning.
Nearby cities
- Downieville-Lawson-Dumont pollen count (4 miles away)
- Empire pollen count (4 miles away)
- Georgetown pollen count (7 miles away)
- Central pollen count (7 miles away)
- Black Hawk pollen count (8 miles away)
- Winter Park pollen count (8 miles away)
From Pollen Atlas News
See how St. Mary's ranks in today's pollen count rankings — the worst cities for allergies today
Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).