Waterbury, CT Pollen Count Today
Waterbury, CT · 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).
Waterbury, CT
Weeds Index
How active weeds pollen is today (0–100).
Waterbury, CT
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Waterbury Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Waterbury residents check each morning
The Waterbury pollen count today is 11 (Low). The main driver is Ragweed, with weed pollen at 14 today. Weed pollen leads the split at 14 (Low on its own scale), followed by tree pollen at 0.6 and grass pollen at 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 weed pollen or mold, reading noticeably higher than the rest, which is why the split is printed on every Waterbury page.
Fall is ragweed season across most of the United States: ragweed plants release pollen from late summer into autumn, and weed pollen is typically the last major outdoor pollen category to fade as the weather cools. That pattern is why an autumn total is so often weed-led even when the headline number is low — tree and grass pollen have usually receded by then, leaving weed pollen, and on damp days mold, to make up most of what the index records. In the Northeast, autumn weed pollen typically winds down as colder nights arrive, so late-season totals can change quickly from week to week.
To see whether today’s pollen level holds, check the 5-day Waterbury pollen forecast below — it is currently rising, with Sunday the highest day in the window.
This is the pollen count Waterbury residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Waterbury pollen count today?
The Waterbury pollen count today is 11 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Waterbury: this page is updated every morning with the day’s modelled reading.
Waterbury allergies today
Waterbury allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 11 (Low), driven mainly by Ragweed. When people ask about Waterbury allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Waterbury.
Allergies in Waterbury follow the Connecticut 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 Waterbury 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 Waterbury allergy forecast: today reads 11 (Low), and the day-by-day outlook shows whether Waterbury 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 Waterbury today records is this same combined reading — tree, grass, weed and mold in one index.
The Waterbury allergy count today is 11 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Waterbury: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 11 | Low |
| Sunday, November 8 | 17 | Low |
| Monday, November 9 | 17 | Low |
| Tuesday, November 10 | 17 | Low |
| Wednesday, November 11 | 17 | Low |
Pollen Atlas forecasts Waterbury’s pollen count to peak on Sunday at 17 (Low) over the next 5 days.
Pollen by type in Waterbury
What is driving Waterbury’s pollen today
The shape of today’s 11 (Low) is set by weed pollen at 14 (Low on its own scale) — about 92% of the four category readings added together, 13.4 points clear of the next category, tree pollen at 0.6. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November runs against the usual calendar — the Connecticut weed chapter runs August to October — 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 Waterbury, so the drivers have to be read from the category split above. The Connecticut guide’s account of Connecticut names oak, the spring heavyweight peaking in May, with birch alongside — 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 11 to 17, never changing band. Today’s 11 sits 5 points below the window’s average of 15.8 — a moving window, worth reading day by day rather than from the average.
Plants affecting Waterbury now
Detailed plant-by-plant readings for Waterbury 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 0.6 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 14 (Low).
In the Northeast pattern, the plants that typically shape this city’s year are spring trees, late-spring grasses and late-summer ragweed — 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.
Waterbury pollen through the year
Three chapters make the Connecticut pollen year, and Waterbury follows them in the Northeast order. The tree chapter: trees open in late March and build to an oak-led peak in May. The grass chapter: grasses hold from late May into July. The weed chapter: ragweed builds from mid-August, peaks in September, and is ended by the first hard frost. Mold tracks the region’s humidity rather than a flowering calendar, and it fills the gaps between chapters.
Connecticut’s season runs from late March to the first hard frost in three clear acts, and the Connecticut River Valley’s farm bottomlands give Hartford a fall ragweed peak to match its spring. The shore trades a little pollen relief from Sound breezes for elevated mold, while the northwest hills start latest and finish earliest. The Connecticut guide singles out oak, the spring heavyweight peaking in May, with birch alongside.
November falls between the main chapters of the Connecticut 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 8 months of the Connecticut year, March to October — a compressed season, which is why its chapters arrive in quick succession. The full calendar is set out in the Connecticut allergy season guide.
How to read this index
Pollen Atlas reports the Waterbury 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 even in a month when Waterbury, CT pollen is usually more active. 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.
Waterbury in today’s national picture
At 11 (Low), Waterbury ranks joint 79269th 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 Waterbury: Oakville, CT (3 miles away) reads 10 (Low); Naugatuck, CT (5 miles away) reads 10 (Low); Watertown, CT (5 miles away) reads 10 (Low). Waterbury reads 1 point higher than its nearest tracked neighbour today. Across Connecticut’s 215 tracked cities, today runs from 5 in Stafford Springs to 17 in Byram.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Waterbury resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Waterbury, CT 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.
Waterbury in its local area
Waterbury is a city in Naugatuck Valley Planning Region, Connecticut. Its population is 114,356 (ACS 2023).
Across Connecticut’s 215 tracked cities, Waterbury ranks joint 70th today.
Like every Pollen Atlas city page, the Waterbury, CT pollen count is refreshed each morning.
Nearby cities
- Oakville pollen count (3 miles away)
- Naugatuck pollen count (5 miles away)
- Watertown pollen count (5 miles away)
- Plantsville pollen count (8 miles away)
- Cheshire Village pollen count (8 miles away)
- Terryville pollen count (8 miles away)
From Pollen Atlas News
See how Waterbury ranks in today's pollen count rankings — the worst cities for allergies today
See Waterbury on the US pollen map
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).