High Pollen in Lee's Summit, MO

High today, mostly weed pollen.

Last updated September 28, 2026

Today's index4out of 5High
TreeVery Lowoff-season
GrassVery Lowoff-season
WeedHighin season

Driving it today

Ragweed

Forecast

Tue
4
Wed
4
Thu
2
Fri
5

About pollen in Lee's Summit

Weed pollen is the main story in Lee's Summit today, running high enough to cause real irritation for anyone sensitive to it. Tree and grass pollen, by contrast, are both quiet and unlikely to cause much trouble. If you tend to react to ragweed, this is a day when symptoms are more likely to show up, especially with extended time outdoors. Looking ahead, weed pollen is expected to stay high over the next couple of days, ease off slightly, then climb again toward the end of the five-day stretch. Grass will remain low and steady throughout, and tree pollen should stay minimal, consistent with this point in the season. Early fall is peak ragweed season in this part of Missouri, so the elevated weed counts fit the usual pattern, while oak, hickory, and other regional trees are well past their spring pollen release and are not contributing much right now.

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 Lee's Summit, MO today?
Lee's Summit, MO 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 5 of 5.
Is weed pollen high in Lee's Summit, MO 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 Lee's Summit, MO?
The main sources right now are Ragweed. Ragweed (Asteraceae (the daisy family), Late summer, fall) is actively pollinating.