Romeville, LA Pollen Count
Romeville, LA · Last updated Friday, November 6, 2026
This page shows the most recent reading available for Romeville — 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).
Romeville, LA
Weeds Index
How active weeds pollen is today (0–100).
Romeville, LA
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Romeville Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Romeville residents check each morning
The Romeville pollen count today is 25 (Low). The main driver is Ragweed, with weed pollen at 29 today. Weed pollen leads the split at 29 (Low on its own scale), followed by tree pollen at 20 and grass pollen at 7. 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 Romeville 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 Romeville pollen forecast below — it is currently holding, with Friday the highest day in the window.
This is the pollen count Romeville residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Romeville pollen count today?
The Romeville 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 Romeville: this page is updated every morning with the day’s modelled reading.
Romeville allergies today
Romeville 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 Romeville allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Romeville.
Allergies in Romeville 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 Romeville 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 Romeville allergy forecast: today reads 25 (Low), and the day-by-day outlook shows whether Romeville 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 Romeville today records is this same combined reading — tree, grass, weed and mold in one index.
The Romeville allergy count today is 25 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Romeville: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 25 | Low |
| Saturday, November 7 | 24 | Low |
| Sunday, November 8 | 24 | Low |
| Monday, November 9 | 22 | Low |
| Tuesday, November 10 | 22 | Low |
Pollen Atlas forecasts Romeville’s pollen count to peak on Friday at 25 (Low) over the next 5 days.
Pollen by type in Romeville
What is driving Romeville’s pollen today
The shape of today’s 25 (Low) is set by weed pollen at 29 (Low on its own scale) — about 52% of the four category readings added together, 9 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.
Plant-level detail is not in today’s feed for Romeville, so the drivers have to be read from the category split above. The Louisiana guide’s account of Louisiana names an early February tree start and outdoor mold, elevated much of the year in the Gulf humidity — 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 22 to 25, never changing band. Today’s 25 sits 2 points above the window’s average of 23.4 — a steady window, in which one day reads much like the next.
Plants affecting Romeville now
Detailed plant-by-plant readings for Romeville 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 20 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 7 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 29 (Low).
In the Gulf & South Texas pattern, the plants that typically shape this city’s year are spring trees, warm-season grasses, late-summer ragweed and winter mountain cedar in the west of the region — 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.
Romeville pollen through the year
Three chapters make the Louisiana pollen year, and Romeville 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 Romeville 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 Romeville 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 Romeville, 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.
Romeville in today’s national picture
At 25 (Low), Romeville 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 Romeville: Convent, LA (4 miles away) reads 25 (Low); St. James, LA (4 miles away) reads 29 (Low); Welcome, LA (4 miles away) reads 29 (Low). Romeville 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 Romeville resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Romeville, 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.
Romeville in its local area
Across Louisiana’s 489 tracked cities, Romeville ranks joint 108th today.
Like every Pollen Atlas city page, the Romeville, LA pollen count is refreshed each morning.
Nearby cities
- Convent pollen count (4 miles away)
- St. James pollen count (4 miles away)
- Welcome pollen count (4 miles away)
- Union pollen count (4 miles away)
- Hester pollen count (5 miles away)
- Grand Point pollen count (5 miles away)
From Pollen Atlas News
See how Romeville 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).