Black River Falls, WI Pollen Count Today
Black River Falls, WI · 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).
Black River Falls, WI
Weeds Index
How active weeds pollen is today (0–100).
Black River Falls, WI
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Black River Falls Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Black River Falls residents check each morning
The Black River Falls pollen count today is 18 (Low). The main driver is Ragweed, with weed pollen at 24 today. That total sits on a narrow base: weed pollen is 24 while tree pollen is just 0.6 and grass pollen 0.6. Plant-by-plant detail for Black River Falls, WI follows, along with the outlook for the days ahead. 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 Black River Falls 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 Black River Falls pollen forecast below — it is currently holding, with Saturday the highest day in the window.
This is the pollen count Black River Falls residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Black River Falls pollen count today?
The Black River Falls 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 Black River Falls: this page is updated every morning with the day’s modelled reading.
Black River Falls allergies today
Black River Falls 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 Black River Falls allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Black River Falls.
Allergies in Black River Falls 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 Black River Falls 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 Black River Falls allergy forecast: today reads 18 (Low), and the day-by-day outlook shows whether Black River Falls 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 Black River Falls today records is this same combined reading — tree, grass, weed and mold in one index.
The Black River Falls allergy count today is 18 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Black River Falls: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 18 | Low |
| Sunday, November 8 | 18 | Low |
| Monday, November 9 | 18 | Low |
| Tuesday, November 10 | 18 | Low |
| Wednesday, November 11 | 18 | Low |
Pollen Atlas forecasts Black River Falls’s pollen count to peak on Saturday at 18 (Low) over the next 5 days.
Pollen by type in Black River Falls
What is driving Black River Falls’s pollen today
The shape of today’s 18 (Low) is set by weed pollen at 24 (Low on its own scale) — about 95% of the four category readings added together, 23.4 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 Black River Falls, 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 18 to 18, never changing band. Today’s 18 sits level with the window’s average of 18 — a steady window, in which one day reads much like the next.
Plants affecting Black River Falls now
Detailed plant-by-plant readings for Black River Falls 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 24 (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.
Black River Falls pollen through the year
Chapter by chapter, the Black River Falls pollen year runs like this:
- Trees run from March into May, later near the big lakes.
- Grasses hold from May through July.
- 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.
The Wisconsin allergy season guide names oak in the south and birch in the north, and a September ragweed peak over the farmland. 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.
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 Black River Falls 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 Black River Falls, 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.
Black River Falls in today’s national picture
At 18 (Low), Black River Falls ranks joint 57574th 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 Black River Falls: Sand Pillow, WI (5 miles away) reads 18 (Low); Mission, WI (5 miles away) reads 18 (Low); Hatfield, WI (9 miles away) reads 15 (Low). Black River Falls reads exactly level with its nearest tracked neighbour today. Across Wisconsin’s 805 tracked cities, today runs from 5 in Wausau to 41 in DeForest.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Black River Falls resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Black River Falls, 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.
Black River Falls in its local area
Across Wisconsin’s 805 tracked cities, Black River Falls ranks joint 539th today.
Like every Pollen Atlas city page, the Black River Falls, WI pollen count is refreshed each morning.
Nearby cities
- Sand Pillow pollen count (5 miles away)
- Mission pollen count (5 miles away)
- Hatfield pollen count (9 miles away)
- Alma Center pollen count (10 miles away)
- Hixton pollen count (10 miles away)
- Merrillan pollen count (11 miles away)
From Pollen Atlas News
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).