Ragweed Pollen Count in Cos Cob, CT — Today

Pollen by type in Cos Cob

• Cos Cob tree pollen count
• Cos Cob grass pollen count
• Cos Cob pollen count

What is the ragweed pollen count in Cos Cob today?

The Cos Cob ragweed pollen index today is 15 (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 Cos Cob today. See the full Cos Cob pollen count for the overall index and every type together.

Cos Cob 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 Cos Cob’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving Cos Cob’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 15 (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 Cos Cob now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Cos Cob. The type summary stands: ragweed pollen reads 15 (Low) today.

In the Northeast pattern, the plants that typically shape this city’s year are spring trees, late-spring 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 builds from mid-August, peaks in September, and is ended by the first hard frost. This month sits outside the usual ragweed pollen window for the Northeast pattern, so today’s ragweed pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Connecticut allergy season guide singles out oak, the spring heavyweight peaking in May, with birch alongside.

Cos Cob allergies today

Cos Cob allergies today are set by the same reading as the Cos Cob pollen count today: the Total Pollen Index is 12 (Low), and the ragweed pollen index on this page is 15 (Low) of it. When people ask about Cos Cob allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Cos Cob.

Allergies in Cos Cob follow the Connecticut calendar set out on the full Cos Cob 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 Cos Cob 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 Cos Cob allergy forecast for the ragweed pollen season: it shows whether Cos Cob 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.