Low Pollen in Cambridge, MA

Low today, mostly grass pollen.

Last updated July 9, 2026

Today's index2out of 5Low
TreeNone
GrassLowoff-season

Driving it today

GinkgoGinkgoOakQuercusHamamelisHamamelisLiquidambarLiquidambarLarixLarix

Forecast

Fri
1
Sat
2
Sun
2
Mon
2

About pollen in Cambridge

Grass pollen is the only real presence in Cambridge today, and it remains at a low level, so most people should get through the day without much irritation. Tree pollen is quiet right now, which is typical for midsummer, so anyone sensitive to grass is likely to notice only mild effects, if any. Looking ahead, grass pollen should stay in the low range through the next several days, holding steady rather than climbing toward anything more troublesome. Tree pollen from species like oak, ginkgo, and liquidambar is well past its spring peak and isn't expected to factor in for now. Overall, this is a fairly calm stretch for allergy sufferers in the area, with grass remaining the main thing to keep in mind as summer continues.

What to do today

  • It's a good day for outdoor activities since pollen levels are low.
  • Do you know which plants cause your pollen allergy? Check out the pollen data to be prepared.

Tree map

Every dot is a tree near Cambridge, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Loading map…

Top tree-pollen sources

The local tree genera behind today's pollen near Cambridge. Each bar is that genus's share of the tree pollen.

88 pollen-relevant trees nearby drive today's tree-pollen reading.

Meet the trees near you

Get to know the tree types growing around Cambridge: what each looks like, how allergenic it is, and when it blooms.

Honeylocust

Honeylocust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring
Norway maple

Norway maple

Acer platanoides

Allergenicity 3/4Blooms spring
Littleleaf linden

Littleleaf linden

Tilia cordata

Allergenicity 2/4Blooms summer
Red maple

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring
Pin oak

Pin oak

Quercus palustris

Allergenicity 4/4Blooms spring
Green ash

Green ash

Fraxinus pennsylvanica

Allergenicity 4/4Blooms spring
Callery pear

Callery pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Hedge maple

Hedge maple

Acer campestre

Allergenicity 3/4Blooms spring
Japanese Flowering cherry

Japanese Flowering cherry

Prunus serrulata

Allergenicity 1/4Blooms spring
Japanese zelkova

Japanese zelkova

Zelkova serrata

Allergenicity 2/4Blooms spring
London planetree

London planetree

Platanus x acerifolia

Allergenicity 4/4Blooms spring
American elm

American elm

Ulmus americana

Allergenicity 3/4Blooms spring
Ginkgo

Ginkgo

Ginkgo biloba

Allergenicity 1/4Blooms spring
Swamp White oak

Swamp White oak

Quercus bicolor

Allergenicity 4/4Blooms spring
Northern Red oak

Northern Red oak

Quercus rubra

Allergenicity 4/4Blooms spring
Kentucky coffeetree

Kentucky coffeetree

Gymnocladus dioicus

Allergenicity 2/4Blooms spring

Common questions

What is the pollen count in Cambridge, MA today?
Cambridge, MA is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. Over the next five days it ranges from 1 to 2 of 5.
Is grass pollen high in Cambridge, MA right now?
Grass pollen is low today at 2 of 5, and it's past its peak season. Most people won't have symptoms.
What plants are causing allergies in Cambridge, MA?
The main sources right now are Ginkgo, Oak, Hamamelis, Liquidambar, and Larix.