Tree Pollen Count in Grants Pass, OR
Last updated Friday, November 6, 2026
This page shows the most recent reading available for Grants Pass — from Friday, November 6, 2026 (1 day ago) — not today's reading.
Pollen by type in Grants Pass
What is the tree pollen count in Grants Pass today?
The Grants Pass tree pollen index today is 12 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Grants Pass’s overall pollen count today is 18 (Low) across all types. See the full Grants Pass pollen count for the overall index and every type together.
Grants Pass is a city in Josephine County, Oregon. Its population is 39,183 (ACS 2023).
Grants Pass Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Friday, November 6 | 18 | Low |
| Saturday, November 7 | 18 | Low |
| Sunday, November 8 | 12 | Low |
| Monday, November 9 | 17 | Low |
| Tuesday, November 10 | 17 | 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 Grants Pass’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving Grants Pass’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 12 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
Plants affecting Grants Pass now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Grants Pass. The type summary stands: tree pollen reads 12 (Low) today.
In the Pacific Northwest pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in the Pacific Northwest pattern — 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.
Alder and hazelnut can start in January west of the Cascades, with maple and oak following through April and May. This month sits outside the usual tree pollen window for the Pacific Northwest pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Oregon allergy season guide singles out alder and hazelnut early, then the Willamette Valley’s seed grasses.
Grants Pass allergies today
Grants Pass allergies today are set by the same reading as the Grants Pass pollen count today: the Total Pollen Index is 18 (Low), and the tree pollen index on this page is 12 (Low) of it. When people ask about Grants Pass allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Grants Pass.
Allergies in Grants Pass follow the Oregon calendar set out on the full Grants Pass 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 Grants Pass 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 Grants Pass allergy forecast for the tree pollen season: it shows whether Grants Pass 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 Grants Pass pollen count — all types, the overall index and today’s ranking context
Grants Pass grass pollen count
Grants Pass ragweed pollen count
See how Grants Pass ranks in today's pollen count rankings — the worst cities for allergies today
See Grants Pass 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).