Ragweed Pollen Count in San Luis, AZ — Today

Pollen by type in San Luis

• San Luis tree pollen count
• San Luis grass pollen count
• San Luis pollen count

What is the ragweed pollen count in San Luis today?

The San Luis ragweed pollen index today is 31 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Ragweed 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 is a city in Yuma County, Arizona. Its population is 35,998 (ACS 2023).

San Luis Ragweed 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 ragweed pollen reading is the headline above.

Species driving San Luis’s ragweed 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: ragweed pollen reads 31 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.

Plants affecting San Luis now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for San Luis. The type summary stands: ragweed pollen reads 31 (Low) today.

In the Desert Southwest pattern, the plants that typically shape this city’s year are irrigated landscape trees and grasses, with wind-carried weeds in open ground — 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 ragweed pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

A final weed wave follows the monsoon rains into fall, with monsoon mold in the same weeks. This month sits inside the ragweed pollen window for the Desert Southwest pattern, so today’s ragweed pollen reading should be judged against that chapter of the Arizona year. The Arizona allergy season guide singles out mulberry, ash and olive — planted trees, not wild desert flora.

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 26 (Low), and the ragweed pollen index on this page is 31 (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 Arizona 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 ragweed 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 ragweed 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.