Grass Pollen Count in Lake Barcroft, VA — Today

Updated Saturday, November 7, 2026

Pollen by type in Lake Barcroft

What is the grass pollen count in Lake Barcroft today?

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

Modelled pollen risk index — not a measured count.

Lake Barcroft’s overall pollen count today is 28 (Low) across all types. See the full Lake Barcroft pollen count for the overall index and every type together.

Lake Barcroft is a census-designated place in Fairfax County, Virginia. Its population is 10,678 (ACS 2023).

Lake Barcroft Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 728Low
Sunday, November 828Low
Monday, November 928Low
Tuesday, November 1028Low
Wednesday, November 1125Low

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 Lake Barcroft’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Lake Barcroft’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 Lake Barcroft 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 Southeast pattern, the plants that typically shape this city’s year are spring trees, warm-season grasses and late-summer ragweed.

The Virginia allergy season guide singles out a spring tree crest and a fall ragweed season joined by a summer grass bridge.

Plants affecting Lake Barcroft now — grass pollen

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

In the Southeast pattern, the plants that typically shape this city’s year are spring trees, warm-season grasses and late-summer ragweed — 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 May and run through the summer. This month sits outside the usual grass pollen window for the Southeast pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Virginia allergy season guide singles out a spring tree crest and a fall ragweed season joined by a summer grass bridge.

Lake Barcroft allergies today

Lake Barcroft allergies today are set by the same reading as the Lake Barcroft pollen count today: the Total Pollen Index is 28 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Lake Barcroft allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Lake Barcroft.

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

Lake Barcroft tree pollen count

Lake Barcroft ragweed pollen count

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

See Lake Barcroft on the pollen map

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

Virginia allergy season guide

Grass pollen season

Find an allergist in Lake Barcroft, VA

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).