La Crosse, WI Pollen Count
La Crosse, WI · Last updated Friday, November 6, 2026
This page shows the most recent reading available for La Crosse — 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).
La Crosse, WI
Weeds Index
How active weeds pollen is today (0–100).
La Crosse, WI
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day La Crosse Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count La Crosse residents check each morning
The La Crosse pollen count today is 21 (Low). The main driver is Ragweed, with weed pollen at 27 today. Weed pollen leads the split at 27 (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 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 La Crosse 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 Plains and around the Great Lakes, ragweed is a familiar late-season plant of open ground, field edges and disturbed soil, which is why it so often leads inland autumn readings.
To see whether today’s pollen level holds, check the 5-day La Crosse pollen forecast below — it is currently easing, with Friday the highest day in the window.
This is the pollen count La Crosse residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the La Crosse pollen count today?
The La Crosse pollen count today is 21 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today La Crosse: this page is updated every morning with the day’s modelled reading.
La Crosse allergies today
La Crosse allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 21 (Low), driven mainly by Ragweed. When people ask about La Crosse allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for La Crosse.
Allergies in La Crosse follow the Wisconsin 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 La Crosse 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 La Crosse allergy forecast: today reads 21 (Low), and the day-by-day outlook shows whether La Crosse 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 La Crosse today records is this same combined reading — tree, grass, weed and mold in one index.
The La Crosse allergy count today is 21 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today La Crosse: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 21 | Low |
| Saturday, November 7 | 16 | Low |
| Sunday, November 8 | 12 | Low |
| Monday, November 9 | 8 | Low |
| Tuesday, November 10 | 5 | Low |
Pollen Atlas forecasts La Crosse’s pollen count to peak on Friday at 21 (Low) over the next 5 days.
Pollen by type in La Crosse
What is driving La Crosse’s pollen today
The shape of today’s 21 (Low) is set by weed pollen at 27 (Low on its own scale) — about 96% of the four category readings added together, 26.4 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 Wisconsin 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 La Crosse, so the drivers have to be read from the category split above. The Wisconsin guide’s account of Wisconsin names oak in the south and birch in the north, and a September ragweed peak over the farmland — 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 5 to 21, never changing band. Today’s 21 sits 9 points above the window’s average of 12.4 — a moving window, worth reading day by day rather than from the average.
Plants affecting La Crosse now
Detailed plant-by-plant readings for La Crosse 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 27 (Low).
In the Midwest & Great Lakes pattern, the plants that typically shape this city’s year are spring trees, late-spring and summer grasses, and late-summer and autumn 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.
La Crosse pollen through the year
Three chapters make the Wisconsin pollen year, and La Crosse follows them in the Midwest & Great Lakes order. The tree chapter: trees run from March into May, later near the big lakes. The grass chapter: grasses hold from May through July. The weed chapter: ragweed builds from mid-August, peaks in September, and ends at the first frost. Mold builds through the humid summer and fills the gaps between chapters.
Lake Michigan moderates Wisconsin’s eastern shore, delaying spring near the water, while the Northwoods run the state’s latest, shortest season. Kentucky bluegrass — the state’s default lawn and pasture grass — drives a May-to-July grass season that bridges spring and fall. The Wisconsin guide singles out oak in the south and birch in the north, and a September ragweed peak over the farmland.
November falls between the main chapters of the Wisconsin 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 Wisconsin year, March to October — a compressed season, which is why its chapters arrive in quick succession. The full calendar is set out in the Wisconsin allergy season guide.
How to read this index
Pollen Atlas reports the La Crosse 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 La Crosse, WI 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.
La Crosse in today’s national picture
At 21 (Low), La Crosse ranks joint 47143rd 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 La Crosse: French Island, WI (3 miles away) reads 22 (Low); La Crescent, MN (4 miles away) reads 20 (Low); Onalaska, WI (5 miles away) reads 19 (Low). La Crosse reads 1 point lower than its nearest tracked neighbour today. Across Wisconsin’s 805 tracked cities, today runs from 5 in Wausau to 42 in DeForest.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one La Crosse resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in La Crosse, WI 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.
La Crosse in its local area
La Crosse is a city in La Crosse County, Wisconsin. Its population is 51,791 (ACS 2023).
Across Wisconsin’s 805 tracked cities, La Crosse ranks joint 519th today.
Like every Pollen Atlas city page, the La Crosse, WI pollen count is refreshed each morning.
Nearby cities
- French Island pollen count (3 miles away)
- Onalaska pollen count (5 miles away)
- West Salem pollen count (9 miles away)
- Brice Prairie pollen count (9 miles away)
- St. Joseph pollen count (9 miles away)
- Holmen pollen count (10 miles away)
From Pollen Atlas News
See how La Crosse ranks in today's pollen count rankings — the worst cities for allergies today
See La Crosse 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).