Low Pollen in Westminster, CA

Low today, mostly grass pollen.

Last updated July 1, 2026

Today's index2out of 5Low
TreeNone
GrassLowoff-season

Driving it today

RhaphiolepisRhaphiolepisPhotiniaPhotiniaTristaniopsisTristaniopsisLagerstroemiaLagerstroemiaMelaleucaMelaleuca

Forecast

Thu
2
Fri
2
Sat
2
Sun
1

About pollen in Westminster

Grass pollen is the main driver in Westminster today, sitting at a Low level (2) and pacing the overall index, which also reads Low. Tree pollen is barely a factor right now, registering Very Low (1), with the area's typical contributors like Oak, Tristaniopsis, Rhus, Geijera, and Melaleuca staying quiet. The five-day grass forecast holds steady at Low across the board, so expect little change in the days ahead. That flat, grass-led pattern fits late June, when spring tree pollen has tapered off and grasses tend to dominate early summer. Ragweed and other weeds are not reported in today's data, which is consistent with this time of year before the late-summer weed season.

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 Westminster, 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 Westminster. Each bar is that genus's share of the tree pollen.

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

Meet the trees near you

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

Chinese elm

Chinese elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring
Canary island pine

Canary island pine

Pinus canariensis

Allergenicity 1/4Blooms spring
Acer paxii

Acer paxii

Acer paxii

Allergenicity 3/4Blooms spring
Evergreen pear

Evergreen pear

Pyrus kawakamii

Allergenicity 1/4Blooms spring
Sawtooth zelkova

Sawtooth zelkova

Zelkova serrata

Allergenicity 2/4Blooms spring
Holly oak

Holly oak

Quercus ilex

Allergenicity 4/4Blooms spring
American sweetgum

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring
London plane

London plane

Platanus acerifolia

Allergenicity 4/4Blooms spring
Honey locust

Honey locust

Gleditsia triacanthos

Allergenicity 2/4Blooms spring
Tulip tree

Tulip tree

Liriodendron tulipifera

Allergenicity 1/4Blooms spring
Maidenhair tree

Maidenhair tree

Ginkgo biloba

Allergenicity 1/4Blooms spring
Hollywood juniper

Hollywood juniper

Juniperus chinensis

Allergenicity 5/4Blooms winter,spring
Italian cypress

Italian cypress

Cupressus sempervirens

Allergenicity 4/4Blooms winter,spring
Shamel ash

Shamel ash

Fraxinus uhdei

Allergenicity 4/4Blooms spring
White mulberry

White mulberry

Morus alba

Allergenicity 5/4Blooms spring
Leaf plum purple

Leaf plum purple

Prunus cerasifera

Allergenicity 1/4Blooms spring

Common questions

What is the pollen count in Westminster, CA today?
Westminster, CA 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 Westminster, CA 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 Westminster, CA?
The main sources right now are Rhaphiolepis, Photinia, Tristaniopsis, Lagerstroemia, and Melaleuca.