Moderate Pollen in Charleston, SC

Moderate today, mostly weed pollen.

Last updated September 30, 2026

Today's index3out of 5Moderate
TreeVery Lowin season
GrassLowin season
WeedModeratein season

Driving it today

ElmGrassesRagweed

Forecast

Thu
2
Fri
2
Sat
2
Sun
2

About pollen in Charleston

Weed pollen is the main story in Charleston today, sitting at a moderate level that could be noticeable for those who tend to react to ragweed and similar plants this time of year. Grass pollen is running low, contributing only mildly to overall conditions, while tree pollen is essentially a non-factor right now. All told, sensitive individuals may feel some mild effects outdoors, but most people should get through the day without much trouble. Looking ahead, weed pollen is expected to ease slightly over the next few days before settling into a steady, moderate pattern, while grass levels should hold at their current low reading throughout the stretch. Tree pollen is likely to stay minimal, which fits the season — oak, pine, and other regional trees typically finish their heavy pollen production well before fall. This time of year in the Lowcountry, ragweed and other late-season weeds are usually the dominant allergy trigger, so it's worth keeping that in mind as autumn continues.

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 Charleston, SC today?
Charleston, SC 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 2 to 3 of 5.
Is weed pollen high in Charleston, SC 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 Charleston, SC?
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.