Grass Pollen Count in North San Ysidro, NM — Today
Updated Saturday, November 7, 2026
Pollen by type in North San Ysidro
What is the grass pollen count in North San Ysidro today?
The North San Ysidro 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 North San Ysidro today. See the full North San Ysidro pollen count for the overall index and every type together.
North San Ysidro Grass Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 5 | Low |
| Sunday, November 8 | 5 | Low |
| Monday, November 9 | 5 | Low |
| Tuesday, November 10 | 5 | Low |
| Wednesday, November 11 | 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 North San Ysidro’s overall trend across the week. Today’s grass pollen reading is the headline above.
Species driving North San Ysidro’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 North San Ysidro 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 New Mexico allergy season guide singles out juniper and elm in spring, and chenopod and ragweed-family weeds after the monsoon.
Plants affecting North San Ysidro now — grass pollen
Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for North San Ysidro. 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 New Mexico allergy season guide singles out juniper and elm in spring, and chenopod and ragweed-family weeds after the monsoon.
North San Ysidro allergies today
North San Ysidro allergies today are set by the same reading as the North San Ysidro 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 North San Ysidro allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for North San Ysidro.
Allergies in North San Ysidro follow the New Mexico calendar set out on the full North San Ysidro 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 North San Ysidro 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 North San Ysidro allergy forecast for the grass pollen season: it shows whether North San Ysidro 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.
North San Ysidro tree pollen count
North San Ysidro ragweed pollen count
See North San Ysidro 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).