High Pollen in Lafayette, LA

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
4
Sat
2
Sun
3

About pollen in Lafayette

Weed pollen is the main driver of today's high overall count in Lafayette, with ragweed likely behind much of it this time of year. Grass is also active at a moderate level and could add to the irritation for those sensitive to it, while tree pollen is on the quieter side for now. Altogether, anyone prone to weed or grass allergies may notice symptoms today, from sneezing to itchy or watery eyes. Looking ahead, weed pollen is expected to stay high over the next couple of days before easing slightly later in the week, so sensitive individuals should expect similar conditions through midweek. Grass will hold at a moderate level before tapering off as well, and tree pollen should remain low throughout, consistent with the seasonal lull before oak, pine, and other regional trees ramp up again in spring. This pattern fits the typical fall pollen picture in south Louisiana, when ragweed and other late-season weeds tend to dominate the outdoor air.

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 Lafayette, LA today?
Lafayette, LA 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 2 to 4 of 5.
Is weed pollen high in Lafayette, LA 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 Lafayette, LA?
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.