
Sweet gum
Liquidambar styraciflua
Very low today, mostly grass pollen.
Last updated July 20, 2026
Pollen levels in El Cajon are quiet today. Grass pollen is present but only at a very low level, unlikely to cause much trouble even for those who are sensitive. Tree pollen is absent entirely, so overall this is an easy day for most allergy sufferers. Looking ahead, grass pollen is expected to hold steady at this same low level over the next several days, with no significant changes on the horizon. Tree pollen should remain quiet as well, which fits the season: local trees like ash, liquidambar, yucca, pine, and Washingtonia palm typically release their pollen earlier in the year and are well past their peak by midsummer. Grass pollen can linger into early summer before tapering off, and current conditions reflect that gradual decline rather than any fresh surge.
Every dot is a tree near El Cajon, 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 El Cajon. Each bar is that genus's share of the tree pollen.
129 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around El Cajon: what each looks like, how allergenic it is, and when it blooms.

Sweet gum
Liquidambar styraciflua

Italian cypress
Cupressus sempervirens

Pine
Pinus

Ash
Fraxinus

Juniper
Juniperus chinensis

California sycamore
Platanus racemosa

Purple leaf plum
Prunus cerasifera

Chinese elm
Ulmus parvifolia

Evergreen pear
Pyrus kawakamii

Fruit tree
Prunus persica

Olive fruitless
Olea

Canary island pine
Pinus canariensis

Holly oak
Quercus ilex

Bradford pear
Pyrus calleryana

Coast live oak
Quercus agrifolia

Fruitless mulberry
Morus alba