Uster Pollen Count
Uster, Switzerland · Last updated Friday, November 6, 2026
This page shows the most recent reading available for Uster — from Friday, November 6, 2026 (1 day ago) — not today's reading.
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).
Uster, Switzerland
Weeds Index
How active weeds pollen is today (0–100).
Uster, Switzerland
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Uster Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Uster residents check each morning
The Uster pollen count today is 18 (Low). The main driver is Ragweed, with weed pollen at 23 today. The full split is tree pollen 0.6, grass pollen 0.6, weed pollen 23. The sections below break that headline number down by plant, by day and by what the band means in practice. Pollen Atlas updated this count on Friday, November 6, 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 Uster 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.
To see whether today’s pollen level holds, check the 5-day Uster pollen forecast below — it is currently mixed, with Saturday the highest day in the window.
This is the pollen count Uster residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Uster pollen count today?
The Uster pollen count today is 18 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Uster: this page is updated every morning with the day’s modelled reading.
Uster allergies today
Uster allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 18 (Low), driven mainly by Ragweed. When people ask about Uster allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Uster.
Allergies in Uster follow the Switzerland 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 Uster 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 Uster allergy forecast: today reads 18 (Low), and the day-by-day outlook shows whether Uster 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 Uster today records is this same combined reading — tree, grass, weed and mold in one index.
The Uster allergy count today is 18 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Uster: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 18 | Low |
| Saturday, November 7 | 19 | Low |
| Sunday, November 8 | 14 | Low |
| Monday, November 9 | 5 | Low |
| Tuesday, November 10 | 5 | Low |
Pollen Atlas forecasts Uster’s pollen count to peak on Saturday at 19 (Low) over the next 5 days.
Pollen by type in Uster
What is driving Uster’s pollen today
The shape of today’s 18 (Low) is set by weed pollen at 23 (Low on its own scale) — about 95% of the four category readings added together, 22.4 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 Switzerland 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 Uster, so the drivers have to be read from the category split above — it shows how much of today’s total each category is actually carrying, and plant detail returns here automatically on any day the feed includes it.
Across the five-day window the Total Pollen Index runs from 5 to 19, never changing band. Today’s 18 sits 6 points above the window’s average of 12.2 — a moving window, worth reading day by day rather than from the average.
Plants affecting Uster now
Detailed plant-by-plant readings for Uster 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 23 (Low).
In the Continental West pattern, the plants that typically shape this city’s year are early hazel and alder, a birch-led spring, late-spring grasses, and late-summer mugwort and 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.
Uster pollen through the year
The Uster pollen year runs in chapters, set by the Continental West pattern and the Switzerland calendar. Trees come first: hazel and alder open from February, and birch leads the spring peak through April and into May. Grasses take the middle of the year: grasses hold from May through July, cresting in late May and June. Weeds close it out: mugwort and ragweed build from August, peak in September, and are ended by the first hard frost. Mold builds through the humid summer and fills the gaps between chapters.
No Switzerland allergy season guide is published yet, so this page does not single out signature pollens for Uster — the calendar above is the Continental West regional pattern, and the plant detail on this page names what today’s feed actually records.
November falls between the main chapters of the Switzerland 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 Switzerland year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. No Switzerland allergy season guide is published yet — this calendar follows the Continental West regional pattern. See Uster pollen count rankings and Uster on the pollen heatmap.
How to read this index
Pollen Atlas reports the Uster 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 Uster, Switzerland 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.
Uster in today’s national picture
At 18 (Low), Uster ranks joint 56739th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Serpa, Portugal at 53, and the lowest is Galiakberovo, Russia at 5. The whole table spans 48 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Uster: Nänikon, Switzerland (3 km away) reads 5 (Low); Greifensee, Switzerland (4 km away) reads 5 (Low); Mönchaltorf, Switzerland (4 km away) reads 18 (Low). Uster reads 13 points higher than its nearest tracked neighbour today. Across Switzerland’s 1093 tracked cities, today runs from 5 in Winterthur to 47 in Arosa.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Uster resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Uster, Switzerland 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.
Uster in its local area
Across Switzerland’s 1093 tracked cities, Uster ranks joint 331st today.
Like every Pollen Atlas city page, the Uster, Switzerland pollen count is refreshed each morning.
Nearby cities
- Nänikon pollen count (3 km away)
- Greifensee pollen count (4 km away)
- Mönchaltorf pollen count (4 km away)
- Fehraltorf pollen count (5 km away)
- Volketswil / Volketswil (Dorf) pollen count (5 km away)
- Gossau pollen count (5 km away)
From Pollen Atlas News
See how Uster 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).