Ragweed Pollen Count in Reston, VA — Today

Pollen by type in Reston

• Reston tree pollen count
• Reston grass pollen count
• Reston pollen count

What is the ragweed pollen count in Reston today?

The Reston ragweed pollen index today is 34 (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 Reston today. 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 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 Reston’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving Reston’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 34 (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 Reston now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Reston. The type summary stands: ragweed pollen reads 34 (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 ragweed pollen level means

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

Enjoy outdoor activities.

Ragweed runs from mid-August to the first frost. This month sits inside the ragweed pollen window for the Southeast pattern, so today’s ragweed pollen reading should be judged against that chapter of the Virginia year. 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 26 (Low), and the ragweed pollen index on this page is 34 (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 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 Reston allergy forecast for the ragweed 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.