
Canary island pine
Pinus canariensis
Low today, mostly grass pollen.
Last updated July 1, 2026
Grass pollen is the main driver in Pomona today, sitting at a Low level on the index, while the overall reading also registers Low at 2. Tree pollen is currently at None, so local species like Maple, Tristaniopsis, Hickory, Albizia, and Washingtonia are contributing little to the air right now. The five-day forecast holds grass steady at the same Low level throughout, suggesting no notable change in the days ahead. This tracks with the season, as grasses tend to be the dominant source through late spring and early summer while tree pollen has tapered off from its springtime peak. Weed pollen data isn't available at this time.
Every dot is a tree near Pomona, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.
The local tree genera behind today's pollen near Pomona. Each bar is that genus's share of the tree pollen.
9 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Pomona: what each looks like, how allergenic it is, and when it blooms.

Canary island pine
Pinus canariensis

London plane bloodgood
Platanus acerifolia

Ornamental pear
Pyrus calleryana

Leaf plum purple
Prunus cerasifera

American sweetgum
Liquidambar styraciflua

White alder
Alnus rhombifolia

Glossy privet
Ligustrum lucidum

Evergreen pear
Pyrus kawakamii

Silver maple
Acer saccharinum

London plane
Platanus acerifolia

Chinese hackberry
Celtis sinensis

California sycamore
Platanus racemosa

Tulip tree
Liriodendron tulipifera

Chinese elm
Ulmus parvifolia

Shamel ash
Fraxinus uhdei

Honey locust
Gleditsia triacanthos