Moderate Pollen in Stockton, CA

Moderate today, mostly weed pollen.

Last updated September 29, 2026

Today's index3out of 5Moderate
TreeNone
GrassVery Lowin season
WeedModeratein season

Driving it today

LiriodendronLiriodendronPistaciaPistaciaLagerstroemiaLagerstroemiaLigustrumLigustrumLiquidambarLiquidambarGrassesRagweed

Forecast

Wed
2
Thu
2
Fri
2
Sat
2

About pollen in Stockton

Weed pollen is the main story in Stockton today, sitting at a moderate level that sensitive individuals will likely notice. Grass pollen remains very low and largely a non-issue, while tree pollen is absent altogether. For most people, today's air should feel manageable, though those who react strongly to weeds may want to keep that in mind. Looking ahead, weed pollen is expected to ease slightly over the next several days but stay in a similar low-to-moderate range, so mild symptoms could linger for those affected. Grass pollen should hold steady at its current low level, offering little cause for concern. Tree pollen is not a factor right now, which fits the season, since local varieties like liquidambar, pistacia, and crape myrtle typically shed their pollen in spring rather than fall. This time of year, weeds are the more common source of irritation as summer transitions into autumn.

What to do today

  • It's important to shower and wash your hair after spending a lot of time outdoors.
  • When spending time outside, use sunglasses and a cap to keep pollen out of your face and eyes.
  • Wash clothes worn outdoors to remove any remnants of pollen grains.
  • If possible, wear glasses instead of contact lenses.
  • Did you hang any laundry outside? Now is a good time to hang clothes indoors or use a dryer if possible.

Tree map

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

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Top tree-pollen sources

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

5,874 pollen-relevant trees nearby drive today's tree-pollen reading.

Meet the trees near you

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

Ornamental pear

Ornamental pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Chinese hackberry

Chinese hackberry

Celtis sinensis

Allergenicity 3/4Blooms spring
London plane tree

London plane tree

Platanus acerifolia

Allergenicity 4/4Blooms spring
Maidenhair tree

Maidenhair tree

Ginkgo biloba

Allergenicity 1/4Blooms spring
Red maple

Red maple

Acer rubrum

Allergenicity 3/4Blooms spring
Leaf plum purple

Leaf plum purple

Prunus cerasifera

Allergenicity 1/4Blooms spring
American sweetgum

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring
Leaf zelkova saw

Leaf zelkova saw

Zelkova serrata

Allergenicity 2/4Blooms spring
Raywood ash

Raywood ash

Fraxinus oxycarpa

Allergenicity 4/4Blooms spring
Leaf linden little

Leaf linden little

Tilia cordata

Allergenicity 2/4Blooms summer
Holly oak

Holly oak

Quercus ilex

Allergenicity 4/4Blooms spring
White birch

White birch

Betula pendula

Allergenicity 5/4Blooms spring
Italian cypress

Italian cypress

Cupressus sempervirens

Allergenicity 4/4Blooms winter,spring
Scarlet oak

Scarlet oak

Quercus coccinea

Allergenicity 4/4Blooms spring
Red oak

Red oak

Quercus rubra

Allergenicity 4/4Blooms spring
Evergreen pear

Evergreen pear

Pyrus kawakamii

Allergenicity 1/4Blooms spring

Common questions

What is the pollen count in Stockton, CA today?
Stockton, CA is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 2 to 3 of 5.
Is weed pollen high in Stockton, CA right now?
Weed pollen is moderate today at 3 of 5, and it's in season now. Sensitive people may notice symptoms.
What plants are causing allergies in Stockton, CA?
The main sources right now are Liriodendron, Pistacia, Lagerstroemia, Ligustrum, and Liquidambar. Grasses (Poaceae, Late spring, summer) is actively pollinating.