Marrero, LA Pollen Count
Marrero, LA · Last updated Friday, November 6, 2026
This page shows the most recent reading available for Marrero — 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).
Marrero, LA
Weeds Index
How active weeds pollen is today (0–100).
Marrero, LA
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Marrero Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Marrero residents check each morning
The Marrero pollen count today is 25 (Low). The main driver is Ragweed, with weed pollen at 28 today. Weed pollen leads the split at 28 (Low on its own scale), followed by tree pollen at 20 and grass pollen at 8. 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 Marrero 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 Marrero pollen forecast below — it is currently holding, with Friday the highest day in the window.
This is the pollen count Marrero residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Marrero pollen count today?
The Marrero pollen count today is 25 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Marrero: this page is updated every morning with the day’s modelled reading.
Marrero allergies today
Marrero allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 25 (Low), driven mainly by Ragweed. When people ask about Marrero allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Marrero.
Allergies in Marrero follow the Louisiana 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 Marrero 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 Marrero allergy forecast: today reads 25 (Low), and the day-by-day outlook shows whether Marrero 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 Marrero today records is this same combined reading — tree, grass, weed and mold in one index.
The Marrero allergy count today is 25 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Marrero: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 25 | Low |
| Saturday, November 7 | 25 | Low |
| Sunday, November 8 | 24 | Low |
| Monday, November 9 | 24 | Low |
| Tuesday, November 10 | 24 | Low |
Pollen Atlas forecasts Marrero’s pollen count to peak on Friday at 25 (Low) over the next 5 days.
Pollen by type in Marrero
What is driving Marrero’s pollen today
The shape of today’s 25 (Low) is set by weed pollen at 28 (Low on its own scale) — about 50% of the four category readings added together, 8 points clear of the next category, tree pollen at 20. 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 is the Louisiana calendar working as expected — November falls in the closing weeks of the state’s weed chapter.
In the plant detail, Ragweed (weed) carries the strongest single plant reading, at a Universal Pollen Index of 3 (Moderate), followed by Elm at 1. None of the plants in today’s detail is one of the state guide’s signature names for Louisiana — a single day’s detail and a season’s pattern are different lenses, and both are printed on this page for that reason.
Across the five-day window the Total Pollen Index runs from 24 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 Marrero now
Two plants are listed in today’s detail for Marrero, shown highest plant index first.
- Ragweed (weed): Universal Pollen Index 3 (Moderate) — present in today’s readings
- Elm (tree): Universal Pollen Index 1 (Very Low) — out of season
Every pollen type, with photos and seasons: the pollen directory.
Marrero pollen through the year
Three chapters make the Louisiana pollen year, and Marrero follows them in the Gulf & South Texas order. The tree chapter: mountain cedar runs from December to March in the west of the region, and oak leads the spring. The grass chapter: grasses carry the hot months, with mold close behind in the Gulf humidity. The weed chapter: ragweed runs from August toward a mild, late finish. Outdoor mold stays elevated for much of the year in the Gulf humidity and can co-headline a reading in any month.
Duration defines Louisiana’s season: hard frosts are infrequent, so the calendar’s true low break is the briefest in the continental interior — and the AAFA’s 2025 report ranked New Orleans No. 2 of 100 metros. The CDC identifies warm, humid environments as prime mold habitat, and Louisiana’s Gulf climate is the continental interior’s clearest example. The Louisiana guide singles out an early February tree start and outdoor mold, elevated much of the year in the Gulf humidity.
November in Marrero sits inside the weed chapter of the Louisiana year, in its closing weeks — the part of the calendar today’s readings should be judged against. Between them, the three chapters touch every month of the Louisiana year — there is no reliably empty month in this calendar. The full calendar is set out in the Louisiana allergy season guide.
How to read this index
Pollen Atlas reports the Marrero 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 Marrero, LA 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.
Marrero in today’s national picture
At 25 (Low), Marrero ranks joint 36055th 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 Marrero: Westwego, LA (2 miles away) reads 25 (Low); Harvey, LA (3 miles away) reads 25 (Low); Estelle, LA (3 miles away) reads 18 (Low). Marrero reads exactly level with its nearest tracked neighbour today. Across Louisiana’s 489 tracked cities, today runs from 15 in Haynesville to 31 in White Castle.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Marrero resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Marrero, LA 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.
Marrero in its local area
Marrero is a census-designated place in Jefferson Parish, Louisiana. Its population is 31,866 (ACS 2023).
Across Louisiana’s 489 tracked cities, Marrero ranks joint 108th today.
Like every Pollen Atlas city page, the Marrero, LA pollen count is refreshed each morning.
Nearby cities
- Westwego pollen count (2 miles away)
- Harvey pollen count (3 miles away)
- Estelle pollen count (3 miles away)
- Woodmere pollen count (4 miles away)
- Gretna pollen count (4 miles away)
- Bridge City pollen count (5 miles away)
From Pollen Atlas News
See how Marrero ranks in today's pollen count rankings — the worst cities for allergies today
See Marrero 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).