Grass Pollen Count in Lone Tree, CO
Last updated Friday, November 6, 2026
This page shows the most recent reading available for Lone Tree — from Friday, November 6, 2026 (1 day ago) — not today's reading.
Pollen by type in Lone Tree
What is the grass pollen count in Lone Tree today?
The Lone Tree 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.
Grass pollen is the dominant allergen in Lone Tree today. See the full Lone Tree pollen count for the overall index and every type together.
Lone Tree is a city in Douglas County, Colorado. Its population is 14,136 (ACS 2023).
Lone Tree Grass Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Friday, November 6 | 5 | Low |
| Saturday, November 7 | 5 | Low |
| Sunday, November 8 | 5 | Low |
| Monday, November 9 | 5 | Low |
| Tuesday, November 10 | 5 | 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 Lone Tree’s overall trend across the week. Today’s grass pollen reading is the headline above.
Species driving Lone Tree’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 Lone Tree 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 Mountain West pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in a compressed warm-season window.
The Colorado allergy season guide singles out juniper, arriving ahead of the local tree season, and the ragweed and sagebrush-family weeds of late summer.
Plants affecting Lone Tree now — grass pollen
Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Lone Tree. The type summary stands: grass pollen reads 0.6 (Low) today.
In the Mountain West pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in a compressed warm-season window — 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.
Grasses follow in a compressed early-summer run. This month sits outside the usual grass pollen window for the Mountain West pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Colorado allergy season guide singles out juniper, arriving ahead of the local tree season, and the ragweed and sagebrush-family weeds of late summer.
Lone Tree allergies today
Lone Tree allergies today are set by the same reading as the Lone Tree pollen count today: the Total Pollen Index is 5 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Lone Tree allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Lone Tree.
Allergies in Lone Tree follow the Colorado calendar set out on the full Lone Tree 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 Lone Tree 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 Lone Tree allergy forecast for the grass pollen season: it shows whether Lone Tree 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 Lone Tree pollen count — all types, the overall index and today’s ranking context
Lone Tree ragweed pollen count
See how Lone Tree ranks in today's pollen count rankings — the worst cities for allergies today
See Lone Tree 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).