Very Low Pollen in Hillsboro, OR

About pollen in Hillsboro

Pollen levels around Hillsboro remain quiet today. Tree pollen is absent, and weed pollen is only barely present, registering at a very low level. Overall, this adds up to one of the calmer stretches of the season, with little to bother even those who are sensitive to airborne allergens. Looking ahead, weed pollen is expected to tick up slightly over the next several days, moving into the low-to-moderate range, while tree pollen should stay flat at essentially zero. This pattern fits the season well: by mid-August, alders, birches, and other regional trees have long finished releasing pollen, and attention shifts to weeds like ragweed as late summer progresses. For now, conditions remain mild, but it is worth keeping an eye on weed levels as the season moves into early fall.

Common questions

What is the pollen count in Hillsboro, OR today?

Hillsboro, OR is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 1 to 2 of 5.

Is weed pollen high in Hillsboro, OR right now?

Weed pollen is very low today at 1 of 5, and it's past its peak season. Most people won't notice it.

What plants are causing allergies in Hillsboro, OR?

Elm (Ulmaceae (the Elm family), Two distinct seasons, late winter to early spring, and late summer to fall (species dependent)) is actively pollinating.