Tree Pollen Count in Perris, CA

Last updated Friday, November 6, 2026

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

Pollen by type in Perris

What is the tree pollen count in Perris today?

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

Modelled pollen risk index — not a measured count.

Perris’s overall pollen count today is 29 (Low) across all types. See the full Perris pollen count for the overall index and every type together.

Perris is a city in Riverside County, California. Its population is 79,349 (ACS 2023).

Perris Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 629Low
Saturday, November 730Low
Sunday, November 829Low
Monday, November 927Low
Tuesday, November 1026Low

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 Perris’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Perris’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 Perris now — tree pollen

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

In the California pattern, the plants that typically shape this city’s year are winter and spring trees, late-spring grasses and late-summer weeds — 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.

Trees build through spring, with planted olive peaking from March into May. This month sits outside the usual tree pollen window for the California pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The California allergy season guide singles out planted olive and the Central Valley’s concentrated spring pollen.

Perris allergies today

Perris allergies today are set by the same reading as the Perris pollen count today: the Total Pollen Index is 29 (Low), and the tree pollen index on this page is 20 (Low) of it. When people ask about Perris allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Perris.

Allergies in Perris follow the California calendar set out on the full Perris 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 Perris 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 Perris allergy forecast for the tree pollen season: it shows whether Perris 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 Perris pollen count — all types, the overall index and today’s ranking context

Perris grass pollen count

Perris ragweed pollen count

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

See Perris on the pollen map

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

California allergy season guide

Tree pollen season

Find an allergist in Perris, CA

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).