Tree Pollen Count in San Simon, AZ

Last updated Friday, November 6, 2026

This page shows the most recent reading available for San Simon — from Friday, November 6, 2026 (1 day ago) — not today's reading.

Pollen by type in San Simon

What is the tree pollen count in San Simon today?

The San Simon tree pollen index today is 20 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

San Simon’s overall pollen count today is 20 (Low) across all types. See the full San Simon pollen count for the overall index and every type together.

San Simon Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 620Low
Saturday, November 714Low
Sunday, November 820Low
Monday, November 919Low
Tuesday, November 1017Low

Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows San Simon’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving San Simon’s tree pollen

Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: tree pollen reads 20 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting San Simon now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for San Simon. The type summary stands: tree pollen reads 20 (Low) today.

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’s readings.

Plant detail returns here automatically on any day the feed includes it.

What this tree pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

Planted trees open in winter — the juniper family and ash first, mulberry at the heart of spring. This month sits outside the usual tree pollen window for the Desert Southwest pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Arizona allergy season guide singles out mulberry, ash and olive — planted trees, not wild desert flora.

San Simon allergies today

San Simon allergies today are set by the same reading as the San Simon pollen count today: the Total Pollen Index is 20 (Low), and the tree pollen index on this page is 20 (Low) of it. When people ask about San Simon allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for San Simon.

Allergies in San Simon follow the Arizona calendar set out on the full San Simon page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in San Simon before heading outdoors, the tree pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.

Read the five-day overall trend above as the San Simon allergy forecast for the tree pollen season: it shows whether San Simon allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.

See the full San Simon pollen count — all types, the overall index and today’s ranking context

San Simon grass pollen count

San Simon ragweed pollen count

See how San Simon ranks in today's pollen count rankings — the worst cities for allergies today

See San Simon on the pollen map

Every pollen type, with photos and seasons: the pollen directory

Arizona allergy season guide

Tree pollen season

Find an allergist in San Simon, AZ

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).