Grass Pollen Count in Boulder Flats, WY — Today
Updated Saturday, November 7, 2026
Pollen by type in Boulder Flats
What is the grass pollen count in Boulder Flats today?
The Boulder Flats grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Boulder Flats’s overall pollen count today is 20 (Low) across all types. See the full Boulder Flats pollen count for the overall index and every type together.
Boulder Flats Grass Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 20 | Low |
| Sunday, November 8 | 20 | Low |
| Monday, November 9 | 20 | Low |
| Tuesday, November 10 | 21 | Low |
| Wednesday, November 11 | 21 | 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 Boulder Flats’s overall trend across the week. Today’s grass pollen reading is the headline above.
Species driving Boulder Flats’s grass pollen
The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for Boulder Flats is 0.6 (Low), and the 5-day overall trend above shows the shape of the week.
As regional context only — not as today’s readings — in the High Basins pattern, the plants that typically shape this city’s year are river-corridor cottonwood and juniper, brief-summer meadow grasses, and sagebrush flowering late.
The Wyoming allergy season guide singles out sagebrush, the state’s signature allergen, flowering from August into October and peaking in September.
Plants affecting Boulder Flats now — grass pollen
Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Boulder Flats. The type summary stands: grass pollen reads 0.6 (Low) today.
In the High Basins pattern, the plants that typically shape this city’s year are river-corridor cottonwood and juniper, brief-summer meadow grasses, and sagebrush flowering late — 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 grass pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Meadow and hay grasses carry the brief summer, from June into August. This month sits outside the usual grass pollen window for the High Basins pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Wyoming allergy season guide singles out sagebrush, the state’s signature allergen, flowering from August into October and peaking in September.
Boulder Flats allergies today
Boulder Flats allergies today are set by the same reading as the Boulder Flats pollen count today: the Total Pollen Index is 20 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Boulder Flats allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Boulder Flats.
Allergies in Boulder Flats follow the Wyoming calendar set out on the full Boulder Flats 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 Boulder Flats before heading outdoors, the grass 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 Boulder Flats allergy forecast for the grass pollen season: it shows whether Boulder Flats 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 Boulder Flats pollen count — all types, the overall index and today’s ranking context
Boulder Flats tree pollen count
Boulder Flats ragweed pollen count
See how Boulder Flats ranks in today's pollen count rankings — the worst cities for allergies today
See Boulder Flats 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).