Grass Pollen Count in Reston, VA

Pollen by type in Reston

• Reston tree pollen count
• Reston ragweed pollen count
• Reston pollen count

What is the grass pollen count in Reston today?

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

Modelled pollen risk index — not a measured count.

Reston’s overall pollen count today is 19 (Low) across all types. See the full Reston pollen count for the overall index and every type together.

Reston is a census-designated place in Fairfax County, Virginia. Its population is 63,542 (ACS 2023).

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

Species driving Reston’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 Reston 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 Reston now — grass pollen

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

Reston allergies today

Reston allergies today are set by the same reading as the Reston pollen count today: the Total Pollen Index is 19 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Reston allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Reston.

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