Flagstaff, AZ Pollen Count

What is the Flagstaff pollen count today?

The Flagstaff pollen count today is 17 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

Short answer for anyone searching pollen count today Flagstaff: this page is updated every morning with the day’s modelled reading.

Flagstaff allergies today

Flagstaff allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 17 (Low), driven mainly by Ragweed. When people ask about Flagstaff allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Flagstaff.

Allergies in Flagstaff follow the Arizona 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 Flagstaff 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 Flagstaff allergy forecast: today reads 17 (Low), and the day-by-day outlook shows whether Flagstaff 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 Flagstaff today records is this same combined reading — tree, grass, weed and mold in one index.

The Flagstaff allergy count today is 17 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Flagstaff: the 5-day forecast

Pollen Atlas forecasts Flagstaff’s pollen count to peak on Friday at 17 (Low) over the next 5 days.

Pollen by type in Flagstaff

• Flagstaff tree pollen count
• Flagstaff grass pollen count
• Flagstaff ragweed pollen count

What is driving Flagstaff’s pollen today

The shape of today’s 17 (Low) is set by weed pollen at 21 (Low on its own scale) — about 82% of the four category readings added together, 17 points clear of the next category, tree pollen at 4. 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 Arizona 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 Flagstaff, so the drivers have to be read from the category split above. The Arizona guide’s account of Arizona names mulberry, ash and olive — planted trees, not wild desert flora — 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 14 to 17, never changing band. Today’s 17 sits 1 point above the window’s average of 15.8 — a steady window, in which one day reads much like the next.

Plants affecting Flagstaff now

Detailed plant-by-plant readings for Flagstaff 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 4 (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 21 (Low).

In the Desert Southwest pattern, the plants that typically shape this city’s year are irrigated landscape trees and grasses, with wind-carried weeds in open ground — 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.

Flagstaff pollen through the year

The Flagstaff pollen year runs in chapters, set by the Desert Southwest pattern and the Arizona calendar. Trees come first: planted trees open in winter — the juniper family and ash first, mulberry at the heart of spring. Grasses take the middle of the year: irrigated Bermuda grass runs long rather than intense, across much of the warm season. Weeds close it out: a final weed wave follows the monsoon rains into fall, with monsoon mold in the same weeks.

The Arizona allergy season guide names mulberry, ash and olive — planted trees, not wild desert flora. Arizona’s season arrives in waves shaped by desert botany and desert weather, with a midsummer heat lull and a mold bump when the monsoon breaks. Phoenix and Tucson often peak weeks apart: Tucson sits at roughly 2,400 feet against Phoenix’s 1,100, and its cooler nights delay its tree wave by a matter of weeks.

November in Flagstaff sits in the overlap of the grass and weed chapters of the Arizona year — overlap weeks, when two chapters feed the same total and the split matters more than the headline. Between them, the three chapters cover 11 months of the Arizona year, January to November — a long season by national standards, with only a short quiet gap. The full calendar is set out in the Arizona allergy season guide.

How to read this index

Pollen Atlas reports the Flagstaff 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 whatever the month. 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.

Flagstaff in today’s national picture

At 17 (Low), Flagstaff ranks joint 60578th 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 Flagstaff: Mountainaire, AZ (6 miles away) reads 15 (Low); Kachina Village, AZ (8 miles away) reads 14 (Low); Doney Park, AZ (8 miles away) reads 17 (Low). Flagstaff reads 2 points higher than its nearest tracked neighbour today. Across Arizona’s 465 tracked cities, today runs from 5 in Fort Valley to 36 in Rillito.

Pollen totals are population numbers; symptoms are personal. The same reading can leave one Flagstaff resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Flagstaff, AZ 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.

Flagstaff in its local area

Flagstaff is a city in Coconino County, Arizona. Its population is 76,333 (ACS 2023).

Across Arizona’s 465 tracked cities, Flagstaff ranks joint 301st today.

Like every Pollen Atlas city page, the Flagstaff, AZ pollen count is refreshed each morning.

Nearby cities

• Mountainaire pollen count (6 miles away)
• Kachina Village pollen count (8 miles away)
• Doney Park pollen count (8 miles away)
• Mountain View Ranches pollen count (9 miles away)
• Timberline-Fernwood pollen count (10 miles away)
• Bellemont pollen count (12 miles away)

From Pollen Atlas News

• Arizona allergy season
• Ragweed season