High Pollen in Port Saint Lucie, FL

High today, mostly weed pollen.

Last updated September 30, 2026

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

Driving it today

ElmGrassesRagweed

Forecast

Thu
4
Fri
3
Sat
4
Sun
3

About pollen in Port Saint Lucie

Weed pollen is the main story in Port Saint Lucie today, running high enough to cause noticeable symptoms for those who are sensitive. Grass is contributing at a moderate level as well, so combined exposure could make for a somewhat irritating day for allergy sufferers. Tree pollen, by contrast, is low and not much of a concern right now. Looking ahead, weed levels are expected to ease briefly tomorrow before climbing back into the high range and staying there through the rest of the stretch, so anyone sensitive to ragweed and similar weeds should expect symptoms to persist. Grass will remain in the low-to-moderate range, while tree pollen should stay quiet throughout the period. This pattern fits the season well: late September is typically peak weed and ragweed time in Florida, well past the spring tree pollen surge from oaks, pines, and other regional trees, and beyond the grass pollen highs of late spring and early summer.

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 Port Saint Lucie, FL today?
Port Saint Lucie, FL 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 3 to 4 of 5.
Is weed pollen high in Port Saint Lucie, FL 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 Port Saint Lucie, FL?
The main sources right now are Elm, 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.