Grass Pollen Count in San Luis, CO — Today

Pollen by type in San Luis

• San Luis tree pollen count
• San Luis ragweed pollen count
• San Luis pollen count

What is the grass pollen count in San Luis today?

The San Luis 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 San Luis today. See the full San Luis pollen count for the overall index and every type together.

San Luis Grass Pollen Count: 5-Day Forecast

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 San Luis’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving San Luis’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 San Luis 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 San Luis now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for San Luis. 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.

San Luis allergies today

San Luis allergies today are set by the same reading as the San Luis 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 San Luis allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for San Luis.

Allergies in San Luis follow the Colorado calendar set out on the full San Luis 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 San Luis 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 San Luis allergy forecast for the grass pollen season: it shows whether San Luis 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.