Tree Pollen Count in Castroville, TX — Today

Updated Saturday, November 7, 2026

Pollen by type in Castroville

What is the tree pollen count in Castroville today?

The Castroville tree pollen index today is 19 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Castroville’s overall pollen count today is 28 (Low) across all types. See the full Castroville pollen count for the overall index and every type together.

Castroville Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 728Low
Sunday, November 811Low
Monday, November 911Low
Tuesday, November 1017Low
Wednesday, November 1122Low

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

Species driving Castroville’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 19 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Castroville now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Castroville. The type summary stands: tree pollen reads 19 (Low) today.

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’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.

Mountain cedar runs from December to March in the west of the region, and oak leads the spring. This month sits outside the usual tree pollen window for the Gulf & South Texas pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Texas allergy season guide singles out mountain cedar — Ashe juniper — in winter, oak in spring and ragweed from August.

Castroville allergies today

Castroville allergies today are set by the same reading as the Castroville pollen count today: the Total Pollen Index is 28 (Low), and the tree pollen index on this page is 19 (Low) of it. When people ask about Castroville allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Castroville.

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

Castroville grass pollen count

Castroville ragweed pollen count

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

See Castroville on the pollen map

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

Texas allergy season guide

Tree pollen season

Find an allergist in Castroville, TX

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).