Moderate Pollen in West Covina, CA

Moderate today, mostly weed pollen.

Last updated September 29, 2026

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

Driving it today

GrassesRagweed

Forecast

Wed
2
Thu
2
Fri
2
Sat
2

About pollen in West Covina

Weed pollen is the main story in West Covina today, sitting at a moderate level that could be noticeable for those who tend to react to it. Grass remains at a very low background level, unlikely to cause much trouble, while tree pollen is essentially quiet for now. Looking ahead, weed pollen should ease slightly over the next several days but is expected to linger in the low-to-moderate range, so sensitive individuals may still notice some effects into the week. Grass should hold steady at its current low level. This pattern fits the season, as late summer into fall is prime time for weeds like ragweed, while tree species common to the area, such as oak and sycamore, are well past their spring peak and not contributing much right now.

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.

Common questions

What is the pollen count in West Covina, CA today?
West Covina, 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 West Covina, 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 West Covina, CA?
The main sources right now are Grasses and Ragweed. Elm (Ulmaceae (the Elm family), Two distinct seasons, late winter to early spring, and late summer to fall (species dependent)) is actively pollinating.