High Pollen in Peoria, AZ

High today, mostly weed pollen.

Last updated September 29, 2026

Today's index4out of 5High
TreeNonein season
GrassModeratein season
WeedHighin season

Driving it today

GrassesRagweed

Forecast

Wed
5
Thu
4
Fri
5
Sat
5

About pollen in Peoria

Weed pollen is the main driver of today's conditions in Peoria, and levels are high enough to be noticeable for most people with sensitivities. Grass pollen is also present at a moderate level, which may add to the irritation for those affected by both. Tree pollen is quiet, so it should not be a factor in how you feel outdoors today. Looking ahead, weed pollen is expected to stay high and climb even further over the next several days, while grass pollen remains steady before ticking up slightly toward the end of the stretch. Tree pollen should stay absent throughout the forecast period, which lines up with the season — desert trees like mesquite and olive typically release their pollen in spring, not fall. This time of year in the Phoenix area is dominated by ragweed and other late-season weeds, so if you tend to react to those, it is worth being a bit more mindful through the coming days.

What to do today

  • Avoid mowing the lawn and raking leaves.
  • When driving the car, close your windows and turn the air conditioning system to recirculation mode.
  • Keep your windows closed and turn on your air purifier or air conditioning.
  • Consider staying indoors during the peak pollen hours (morning and early afternoon).

Common questions

What is the pollen count in Peoria, AZ today?
Peoria, AZ is at a high 4 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 4 to 5 of 5.
Is weed pollen high in Peoria, AZ right now?
Weed pollen is high today at 4 of 5, and it's in season now. Many allergy sufferers will have symptoms.
What plants are causing allergies in Peoria, AZ?
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.