Grass Pollen Count in Walnut Grove, CA

Last updated Friday, November 6, 2026

This page shows the most recent reading available for Walnut Grove — from Friday, November 6, 2026 (1 day ago) — not today's reading.

Pollen by type in Walnut Grove

What is the grass pollen count in Walnut Grove today?

The Walnut Grove grass pollen index today is 1 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Walnut Grove’s overall pollen count today is 29 (Low) across all types. See the full Walnut Grove pollen count for the overall index and every type together.

Walnut Grove Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 629Low
Saturday, November 726Low
Sunday, November 828Low
Monday, November 928Low
Tuesday, November 1028Low

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 Walnut Grove’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Walnut Grove’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 Walnut Grove is 1 (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 California pattern, the plants that typically shape this city’s year are winter and spring trees, late-spring grasses and late-summer weeds.

The California allergy season guide singles out planted olive and the Central Valley’s concentrated spring pollen.

Plants affecting Walnut Grove now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Walnut Grove. The type summary stands: grass pollen reads 1 (Low) today.

In the California pattern, the plants that typically shape this city’s year are winter and spring trees, late-spring grasses and late-summer weeds — 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 peak in spring in the Central Valley and run longer and milder on the coast. This month sits outside the usual grass pollen window for the California pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The California allergy season guide singles out planted olive and the Central Valley’s concentrated spring pollen.

Walnut Grove allergies today

Walnut Grove allergies today are set by the same reading as the Walnut Grove pollen count today: the Total Pollen Index is 29 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Walnut Grove allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Walnut Grove.

Allergies in Walnut Grove follow the California calendar set out on the full Walnut Grove 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 Walnut Grove 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 Walnut Grove allergy forecast for the grass pollen season: it shows whether Walnut Grove 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 Walnut Grove pollen count — all types, the overall index and today’s ranking context

Walnut Grove tree pollen count

Walnut Grove ragweed pollen count

See how Walnut Grove ranks in today's pollen count rankings — the worst cities for allergies today

See Walnut Grove on the pollen map

Every pollen type, with photos and seasons: the pollen directory

California allergy season guide

Grass pollen season

Find an allergist in Walnut Grove, CA

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).