Tree Pollen Count in Hidden Hills, CA
Last updated Friday, November 6, 2026
This page shows the most recent reading available for Hidden Hills — from Friday, November 6, 2026 (1 day ago) — not today's reading.
This reading is the forecast point shared with Calabasas, CA — 2 nearby places use the same point; Hidden Hills is 4 km from it.
Pollen by type in Hidden Hills
What is the tree pollen count in Hidden Hills today?
The Hidden Hills tree pollen index today is 24 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Hidden Hills’s overall pollen count today is 23 (Low) across all types. See the full Hidden Hills pollen count for the overall index and every type together.
Hidden Hills Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Friday, November 6 | 23 | Low |
| Saturday, November 7 | 23 | Low |
| Sunday, November 8 | 23 | Low |
| Monday, November 9 | 20 | Low |
| Tuesday, November 10 | 22 | Low |
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 Hidden Hills’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving Hidden Hills’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 24 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
Plants affecting Hidden Hills now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Hidden Hills. The type summary stands: tree pollen reads 24 (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.
Hidden Hills allergies today
Hidden Hills allergies today are set by the same reading as the Hidden Hills pollen count today: the Total Pollen Index is 23 (Low), and the tree pollen index on this page is 24 (Low) of it. When people ask about Hidden Hills allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Hidden Hills.
Allergies in Hidden Hills follow the California calendar set out on the full Hidden Hills 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 Hidden Hills 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 Hidden Hills allergy forecast for the tree pollen season: it shows whether Hidden Hills 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 Hidden Hills pollen count — all types, the overall index and today’s ranking context
Hidden Hills grass pollen count
Hidden Hills ragweed pollen count
See how Hidden Hills ranks in today's pollen count rankings — the worst cities for allergies today
See Hidden Hills on the pollen map
Every pollen type, with photos and seasons: the pollen directory
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).