Moderate Pollen in Cincinnati, OH

Moderate today, mostly weed pollen.

Last updated September 29, 2026

Today's index3out of 5Moderate
WeedModeratein season

Driving it today

Ragweed

Forecast

Wed
4
Thu
4
Fri
2
Sat
1

About pollen in Cincinnati

Weed pollen is the main driver of today's conditions in Cincinnati, sitting at a moderate level. If you tend to react to ragweed, you'll likely notice some effect outdoors, though most people should be able to go about their day without much disruption. Looking ahead, weed pollen is expected to tick up over the next couple of days before easing noticeably by the end of the week. This tracks with the usual late-September pattern, as ragweed continues its seasonal run before tapering off with cooler weather. Tree pollen from local species like oak and maple is not a factor at this point, since their release season has long passed and won't return until spring.

What to do today

  • It's important to shower and wash your hair after spending a lot of time outdoors.
  • When spending time outside, use sunglasses and a cap to keep pollen out of your face and eyes.
  • Wash clothes worn outdoors to remove any remnants of pollen grains.
  • If possible, wear glasses instead of contact lenses.
  • Did you hang any laundry outside? Now is a good time to hang clothes indoors or use a dryer if possible.

Common questions

What is the pollen count in Cincinnati, OH today?
Cincinnati, OH is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 1 to 4 of 5.
Is weed pollen high in Cincinnati, OH right now?
Weed pollen is moderate today at 3 of 5, and it's in season now. Sensitive people may notice symptoms.
What plants are causing allergies in Cincinnati, OH?
The main sources right now are Ragweed. Ragweed (Asteraceae (the daisy family), Late summer, fall) is actively pollinating.