Oak Park, CA Pollen Count

What is the Oak Park pollen count today?

The Oak Park pollen count today is 22 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

Short answer for anyone searching pollen count today Oak Park: this page is updated every morning with the day’s modelled reading.

Oak Park allergies today

Oak Park allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 22 (Low), driven mainly by Ragweed. When people ask about Oak Park allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Oak Park.

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

Read the five-day table on this page as the Oak Park allergy forecast: today reads 22 (Low), and the day-by-day outlook shows whether Oak Park allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.

In practice, the allergy count Oak Park today records is this same combined reading — tree, grass, weed and mold in one index.

The Oak Park allergy count today is 22 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Oak Park: the 5-day forecast

Pollen Atlas forecasts Oak Park’s pollen count to peak on Friday at 22 (Low) over the next 5 days.

Pollen by type in Oak Park

• Oak Park tree pollen count
• Oak Park grass pollen count
• Oak Park ragweed pollen count

What is driving Oak Park’s pollen today

The shape of today’s 22 (Low) is set by weed pollen at 25 (Low on its own scale) — about 48% of the four category readings added together, 1 points clear of the next category, tree pollen at 24. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November runs against the usual calendar — the California weed chapter runs August to October — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.

Plant-level detail is not in today’s feed for Oak Park, so the drivers have to be read from the category split above. The California guide’s account of California names planted olive and the Central Valley’s concentrated spring pollen — the pollens behind readings of this shape in this state — and the split shows how much of today’s total each category is actually carrying.

Across the five-day window the Total Pollen Index runs from 20 to 22, never changing band. Today’s 22 sits 0 points above the window’s average of 21.6 — a steady window, in which one day reads much like the next.

Plants affecting Oak Park now

Detailed plant-by-plant readings for Oak Park were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.

Tree pollen is one of the categories with a non-zero reading today, at 24 (Low).

Grass pollen is one of the categories with a non-zero reading today, at 3 (Low).

Weed pollen is one of the categories with a non-zero reading today, at 25 (Low).

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\u2019s measurements.

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

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

Oak Park pollen through the year

The Oak Park pollen year runs in chapters, set by its own pattern and the California calendar. Trees come first: trees build through spring, with planted olive peaking from March into May. Grasses take the middle of the year: grasses peak in spring in the Central Valley and run longer and milder on the coast. Weeds close it out: weeds follow in late summer and fall, stronger after wet winters.

The California allergy season guide names planted olive and the Central Valley’s concentrated spring pollen. There is no single California season: the Central Valley records some of the state’s sharpest spring peaks, trapped and concentrated by valley geography, while the coast runs long and mild. The AAFA’s 2025 Allergy Capitals research noted upward movement for several California cities, attributed to grass and weed pollen after wet weather.

November falls between the main chapters of the California pollen year — the tail of one and the approach of the next — so the calendar alone explains little today, and the modelled split above carries the story. Between them, the three chapters cover 9 months of the California year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. The full calendar is set out in the California allergy season guide.

How to read this index

Pollen Atlas reports the Oak Park pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down even in a month when Oak Park, CA pollen is usually more active. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.

Oak Park in today’s national picture

At 22 (Low), Oak Park ranks joint 44134th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Serpa, Portugal at 53, and the lowest is Galiakberovo, Russia at 5. The whole table spans 48 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.

Around Oak Park: Agoura Hills, CA (2 miles away) reads 23 (Low); Westlake Village, CA (4 miles away) reads 23 (Low); Thousand Oaks, CA (5 miles away) reads 22 (Low). Oak Park reads 1 point lower than its nearest tracked neighbour today. Across California’s 1602 tracked cities, today runs from 5 in Truckee to 42 in Mecca.

Pollen totals are population numbers; symptoms are personal. The same reading can leave one Oak Park resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Oak Park, CA can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.

Oak Park in its local area

Oak Park is a census-designated place in Ventura County, California. Its population is 13,656 (ACS 2023).

Oak Park sits 2 miles north of Agoura Hills, CA — the anchor of the forecast-point group this reading belongs to. Within the group of 3, Oak Park ranks joint 2nd; across California’s 1602 tracked cities, it ranks joint 698th today.

Like every Pollen Atlas city page, the Oak Park, CA pollen count is refreshed each morning.

Nearby cities

• Agoura Hills pollen count (2 miles away)
• Westlake Village pollen count (4 miles away)
• Thousand Oaks pollen count (5 miles away)
• Bell Canyon pollen count (5 miles away)
• Simi Valley pollen count (6 miles away)
• Hidden Hills pollen count (6 miles away)

From Pollen Atlas News

• California allergy season
• Ragweed season