Very High Pollen in Tucson, AZ

About pollen in Tucson

Weed pollen is dominating the air in Tucson today, reaching levels intense enough to affect most people with any sensitivity to it, not just those with severe allergies. Grass pollen is present as well, though only at a low level that most people should barely notice. Tree pollen is absent from the mix entirely, so any irritation you're feeling is almost certainly coming from weeds rather than trees or grass. Looking ahead, this pattern is expected to hold steady over the next several days, with weed pollen remaining very high and grass staying at a mild, low level throughout. This lines up with the seasonal calendar for the region: late summer into fall is peak time for weeds like ragweed, which thrive in the desert heat and dry conditions common to Tucson this time of year. Tree pollen, typically from species like mesquite, olive, or juniper, has already wound down and won't be a factor again until closer to spring.

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).
• Make sure to use an air purifier with HEPA filter in your home, especially in your bedroom. Don't forget to perform regular filter maintenance checks.

Common questions

What is the pollen count in Tucson, AZ today?

Tucson, AZ is at a very high 5 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 5 of 5.

Is weed pollen high in Tucson, AZ right now?

Weed pollen is very high today at 5 of 5, and it's in season now. Most allergy sufferers will have symptoms.

What plants are causing allergies in Tucson, 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.