Grass Pollen Count in South River, NJ — Today

Updated Saturday, November 7, 2026

This reading is the forecast point shared with Perth Amboy, NJ — 4 nearby places use the same point; South River is 15 km from it.

Pollen by type in South River

What is the grass pollen count in South River today?

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

Modelled pollen risk index — not a measured count.

South River’s overall pollen count today is 16 (Low) across all types. See the full South River pollen count for the overall index and every type together.

South River is a borough in Middlesex County, New Jersey. Its population is 16,007 (ACS 2023).

South River Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 716Low
Sunday, November 816Low
Monday, November 916Low
Tuesday, November 1016Low
Wednesday, November 1115Low

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

Species driving South River’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 South River 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 Northeast pattern, the plants that typically shape this city’s year are spring trees, late-spring grasses and late-summer ragweed.

The New Jersey allergy season guide singles out oak, the spring heavyweight statewide, with maple sharing the stage and birch earning a real billing in the northwestern hills.

Plants affecting South River now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for South River. The type summary stands: grass pollen reads 1 (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 grass pollen level means

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

Enjoy outdoor activities.

Grasses hold from late May into July. This month sits outside the usual grass pollen window for the Northeast pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The New Jersey allergy season guide singles out oak, the spring heavyweight statewide, with maple sharing the stage and birch earning a real billing in the northwestern hills.

South River allergies today

South River allergies today are set by the same reading as the South River pollen count today: the Total Pollen Index is 16 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about South River allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for South River.

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

South River tree pollen count

South River ragweed pollen count

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

See South River on the pollen map

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

New Jersey allergy season guide

Grass pollen season

Find an allergist in South River, NJ

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).