High Pollen in Alhambra, AZ

High today, mostly weed pollen.

Last updated September 30, 2026

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

Driving it today

GrassesRagweed

Forecast

Thu
4
Fri
4
Sat
4
Sun
5

About pollen in Alhambra

Weed pollen is the main concern in Alhambra today, running high enough to cause noticeable symptoms for those who are sensitive. Grass pollen is also active at a moderate level, which may add to the discomfort for some. Tree pollen is quiet right now, so it isn't a factor in today's conditions. Looking ahead, weed pollen is expected to remain high through the next several days, while grass pollen may tick up slightly toward the higher end of moderate later in the week. Tree pollen should stay minimal throughout this stretch, which fits the season—desert trees like mesquite and olive typically release their pollen in spring, not fall. Instead, this time of year in the Phoenix area is dominated by weeds such as ragweed and pigweed, along with lingering grasses, so it's a good stretch to stay mindful if you tend to react to either.

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 Alhambra, AZ today?
Alhambra, 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 Alhambra, 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 Alhambra, 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.