Very High Pollen in Tucson, AZ
Very high today, mostly weed pollen.
Last updated October 14, 2026
Driving it today
Forecast
About pollen in Tucson
Weed pollen is dominating the air in Tucson today, reaching a very high level that is likely to cause noticeable symptoms for those who are sensitive. Grass pollen is also present but only at a low level, making it a minor factor by comparison. Tree pollen is quiet, with no activity being recorded. Looking ahead, weed pollen is expected to remain very high through the next several days, so anyone affected should plan for continued discomfort rather than a quick letup. Grass will stay low and ease slightly toward the end of the period, while trees should remain dormant. This pattern fits the season: autumn in the desert Southwest is prime time for weeds like ragweed, while typical local trees such as mesquite and olive won't become active again until 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.