Low Pollen in Rancho Cucamonga, CA

About pollen in Rancho Cucamonga

Pollen levels around Rancho Cucamonga remain mild today. Weed pollen is the more active category, though it sits at a low level that most people will not notice. Tree pollen is nearly absent, so trees like plane, cupaniopsis, syagrus, rhus, and jacaranda are contributing little to the air right now. Overall, this is an easy day for most allergy sufferers, with only those especially sensitive to weed pollen likely to feel any effect. Looking ahead, conditions should stay steady through the next several days, with weed pollen holding at a low level and tree pollen continuing to be minimal. This fits the typical late-summer pattern for the region, when local trees have largely finished releasing pollen and weeds become the main source of outdoor allergens. Barring any shifts in weather, no significant changes in pollen activity are expected in the near term.

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 Rancho Cucamonga, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Top tree-pollen sources

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

Meet the trees near you

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

London plane

Platanus acerifolia

Allergenicity 4/4Blooms spring

Canary island pine

Pinus canariensis

Allergenicity 1/4Blooms spring

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

Glossy privet

Ligustrum lucidum

Allergenicity 2/4Blooms spring

Leaf plum purple

Prunus cerasifera

Allergenicity 1/4Blooms spring

Ornamental pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Evergreen pear

Pyrus kawakamii

Allergenicity 1/4Blooms spring

Tulip tree

Liriodendron tulipifera

Allergenicity 1/4Blooms spring

Aleppo pine

Pinus halepensis

Allergenicity 1/4Blooms spring

Chinese elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

White alder

Alnus rhombifolia

Allergenicity 4/4Blooms winter,spring

Holly oak

Quercus ilex

Allergenicity 4/4Blooms spring

Italian stone pine

Pinus pinea

Allergenicity 1/4Blooms spring

Arizona ash

Fraxinus velutina

Allergenicity 4/4Blooms spring

Purple robe locust

Robinia pseudoacacia

Allergenicity 2/4Blooms spring

White mulberry

Morus alba

Allergenicity 5/4Blooms spring

Common questions

What is the pollen count in Rancho Cucamonga, CA today?

Rancho Cucamonga, CA is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 2 of 5.

Is weed pollen high in Rancho Cucamonga, CA right now?

Weed 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 Rancho Cucamonga, CA?

The main sources right now are Lagerstroemia, Koelreuteria, Cercis, Citrus, and Washingtonia.