Sammamish, WA Pollen Count Today
Sammamish, WA · Updated Saturday, November 7, 2026
Pollen Overview
Today's overall pollen level and the dominant type (trees, weeds, grass, or mold).
Total Pollen Index
The combined pollen level across all types (0–100).
Sammamish, WA
Weeds Index
How active weeds pollen is today (0–100).
Sammamish, WA
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Sammamish Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Sammamish residents check each morning
The Sammamish pollen count today is 10 (Low). The main driver is Ragweed, with weed pollen at 12 today. Weed pollen leads the split at 12 (Low on its own scale), followed by tree pollen at 7 and grass pollen at 0.6. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Saturday, November 7, 2026.
A Low band on the Pollen Atlas index means the Total Pollen Index has stayed in the lower part of the 0–100 scale. Readings in this band are built from low individual category values rather than from one large spike, and the category split above matters more than the headline number: a low total can still contain one category, such as weed pollen or mold, reading noticeably higher than the rest, which is why the split is printed on every Sammamish page.
In the Pacific Northwest, the main outdoor pollen activity is concentrated in spring and early summer — trees first, then grasses — and readings outside that window are commonly low across every category. Cool-season pages in this region are therefore often defined by what is absent: zero or near-zero tree and grass values, with any remaining total carried by small weed or mold readings. That quiet pattern is itself useful information, and it is reported here exactly as modelled.
To see whether today’s pollen level holds, check the 5-day Sammamish pollen forecast below — it is currently mixed, with Monday the highest day in the window.
This is the pollen count Sammamish residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Sammamish pollen count today?
The Sammamish pollen count today is 10 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Sammamish: this page is updated every morning with the day’s modelled reading.
Sammamish allergies today
Sammamish allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 10 (Low), driven mainly by Ragweed. When people ask about Sammamish allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Sammamish.
Allergies in Sammamish follow the Washington 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 Sammamish 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 Sammamish allergy forecast: today reads 10 (Low), and the day-by-day outlook shows whether Sammamish 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 Sammamish today records is this same combined reading — tree, grass, weed and mold in one index.
The Sammamish allergy count today is 10 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Sammamish: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 10 | Low |
| Sunday, November 8 | 7 | Low |
| Monday, November 9 | 15 | Low |
| Tuesday, November 10 | 7 | Low |
| Wednesday, November 11 | 9 | Low |
Pollen Atlas forecasts Sammamish’s pollen count to peak on Monday at 15 (Low) over the next 5 days.
Pollen by type in Sammamish
What is driving Sammamish’s pollen today
The shape of today’s 10 (Low) is set by weed pollen at 12 (Low on its own scale) — about 61% of the four category readings added together, 5 points clear of the next category, tree pollen at 7. 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 Washington weed chapter runs August to September — 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 Sammamish, so the drivers have to be read from the category split above. The Washington guide’s account of Washington names alder and hazelnut from January on the west side, and timothy and sagebrush on Spokane’s continental clock — 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 7 to 15, never changing band. Today’s 10 sits 0 points above the window’s average of 9.6 — a moving window, worth reading day by day rather than from the average.
Plants affecting Sammamish now
Detailed plant-by-plant readings for Sammamish 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 7 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 12 (Low).
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\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.
Sammamish pollen through the year
Three chapters make the Washington pollen year, and Sammamish follows them in the Pacific Northwest order. The tree chapter: alder and hazelnut can start in January west of the Cascades, with maple and oak following through April and May. The grass chapter: grasses run from May, peaking in late spring and early summer. The weed chapter: weeds are the minor act — sagebrush and tumbleweed east of the Cascades carry into September. Mold is the wet-season constant west of the Cascades, where rain crashes counts and the season restarts on the first dry, mild day.
Washington’s pollen season now starts about 20 days earlier and lasts almost a month longer than 30 years ago, according to the state Department of Health. UW Medicine specialists put the start of Seattle’s tree pollen season at around mid-February in a typical year. The Washington guide singles out alder and hazelnut from January on the west side, and timothy and sagebrush on Spokane’s continental clock.
November falls between the main chapters of the Washington 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 Washington year, January to September — leaving a quiet gap of roughly 3 months in the depth of the off-season. The full calendar is set out in the Washington allergy season guide.
How to read this index
Pollen Atlas reports the Sammamish 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 whatever the month. 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.
Sammamish in today’s national picture
At 10 (Low), Sammamish ranks joint 80772nd of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Beja, Portugal at 52, and the lowest is Los Ángeles de San Rafael, Spain at 5. The whole table spans 47 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Sammamish: Issaquah, WA (3 miles away) reads 11 (Low); Ames Lake, WA (5 miles away) reads 10 (Low); Bellevue, WA (6 miles away) reads 19 (Low). Sammamish reads 1 point lower than its nearest tracked neighbour today. Across Washington’s 638 tracked cities, today runs from 5 in Wenatchee to 30 in Basin City.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Sammamish resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Sammamish, WA 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.
Sammamish in its local area
Sammamish is a city in King County, Washington. Its population is 66,375 (ACS 2023).
Across Washington’s 638 tracked cities, Sammamish ranks joint 422nd today.
Like every Pollen Atlas city page, the Sammamish, WA pollen count is refreshed each morning.
Nearby cities
- Issaquah pollen count (3 miles away)
- Ames Lake pollen count (5 miles away)
- Bellevue pollen count (6 miles away)
- Fall City pollen count (6 miles away)
- Union Hill-Novelty Hill pollen count (6 miles away)
- Redmond pollen count (7 miles away)
From Pollen Atlas News
See how Sammamish ranks in today's pollen count rankings — the worst cities for allergies today
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).