Grass Pollen Count in San Jose, AZ — Today

Updated Saturday, November 7, 2026

Pollen by type in San Jose

What is the grass pollen count in San Jose today?

The San Jose grass pollen index today is 2 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

San Jose’s overall pollen count today is 19 (Low) across all types. See the full San Jose pollen count for the overall index and every type together.

San Jose Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 719Low
Sunday, November 826Low
Monday, November 926Low
Tuesday, November 1024Low
Wednesday, November 1126Low

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 Jose’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving San Jose’s grass pollen

The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for San Jose is 2 (Low), and the 5-day overall trend above shows the shape of the week.

As regional context only — not as today’s readings — 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.

The Arizona allergy season guide singles out mulberry, ash and olive — planted trees, not wild desert flora.

Plants affecting San Jose now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for San Jose. The type summary stands: grass pollen reads 2 (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 grass pollen level means

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

Enjoy outdoor activities.

Irrigated Bermuda grass runs long rather than intense, across much of the warm season. This month sits inside the grass pollen window for the Desert Southwest pattern, so today’s grass pollen reading should be judged against that chapter of the Arizona year. The Arizona allergy season guide singles out mulberry, ash and olive — planted trees, not wild desert flora.

San Jose allergies today

San Jose allergies today are set by the same reading as the San Jose pollen count today: the Total Pollen Index is 19 (Low), and the grass pollen index on this page is 2 (Low) of it. When people ask about San Jose allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for San Jose.

Allergies in San Jose follow the Arizona calendar set out on the full San Jose 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 Jose before heading outdoors, the grass 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 Jose allergy forecast for the grass pollen season: it shows whether San Jose 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 Jose pollen count — all types, the overall index and today’s ranking context

San Jose tree pollen count

San Jose ragweed pollen count

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

See San Jose on the pollen map

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

Arizona allergy season guide

Grass pollen season

Find an allergist in San Jose, 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).