Tree Pollen Count in Rohnert Park, CA — Today
Updated Saturday, November 7, 2026
Pollen by type in Rohnert Park
What is the tree pollen count in Rohnert Park today?
The Rohnert Park tree pollen index today is 23 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Rohnert Park’s overall pollen count today is 23 (Low) across all types. See the full Rohnert Park pollen count for the overall index and every type together.
Rohnert Park is a city in Sonoma County, California. Its population is 44,461 (ACS 2023).
Rohnert Park Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 23 | Low |
| Sunday, November 8 | 23 | Low |
| Monday, November 9 | 25 | Low |
| Tuesday, November 10 | 24 | Low |
| Wednesday, November 11 | 24 | 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 Rohnert Park’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving Rohnert Park’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 23 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
Plants affecting Rohnert Park now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Rohnert Park. The type summary stands: tree pollen reads 23 (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.
Rohnert Park allergies today
Rohnert Park allergies today are set by the same reading as the Rohnert Park pollen count today: the Total Pollen Index is 23 (Low), and the tree pollen index on this page is 23 (Low) of it. When people ask about Rohnert Park allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Rohnert Park.
Allergies in Rohnert Park follow the California calendar set out on the full Rohnert Park 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 Rohnert Park 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 Rohnert Park allergy forecast for the tree pollen season: it shows whether Rohnert Park 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 Rohnert Park pollen count — all types, the overall index and today’s ranking context
Rohnert Park grass pollen count
Rohnert Park ragweed pollen count
See how Rohnert Park ranks in today's pollen count rankings — the worst cities for allergies today
See Rohnert Park 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).