Charleston, Utah Pollen Count & Allergy Forecast

Charleston pollen count and allergy forecast — tree, grass, and ragweed seasons and what’s pollinating now

Charleston, UT · Pollen season

In June, grass pollen is in season in Charleston — the dominant allergen you're likely reacting to right now.

Based on the seasonal pollen calendar for this region.

Pollen by type this season

Charleston pollen calendar

Typical peak months for each pollen type in this climate region. The highlighted column is the current month.

JFMAMJJASOND
TreeMar–May
GrassMay–Jul
WeedAug–Oct

How Charleston’s pollen count works

The calendar above is tuned to Charleston’s high-elevation Mountain West climate, not a national average: tree pollen peaks Mar–May, grass May–Jul, and ragweed Aug–Oct here. Those windows are why grass pollen is the one in season in Charleston right now.

No live count is wired up for Charleston today, so the seasonal calendar above is your guide to which allergen is in season. Counts run highest on warm, dry, windy mornings and drop after rain, which washes pollen out of the air — reported on the None / Low / Moderate / High / Very High scale.

Frequently asked

When is pollen worst in Charleston?
Charleston runs the classic three-wave calendar: tree pollen Mar–May, grass May–Jul, then ragweed Aug–Oct. The two worst stretches are the spring tree peak and the late-summer ragweed peak. Currently, grass pollen is what's driving counts this month.
What's in the air in Charleston right now?
In June, grass pollen is in season in Charleston — the dominant allergen you're likely reacting to right now. A live count, when available, confirms the day's actual reading; this reflects the typical peak windows for Charleston's high-elevation Mountain West climate.
Is tree or grass pollen higher in Charleston in spring?
In spring, tree pollen leads in Charleston — trees pollinate Mar–May, ahead of grass (May–Jul). The handoff is the tail of the tree window: tree counts taper as grass climbs, so an early-spring flare is more likely tree pollen and a late-spring one more likely grass.
What makes Charleston's pollen season distinctive?
Charleston sits in the high-elevation Mountain West zone, which means short, sharp seasons set late by elevation, with sagebrush adding to the late-summer weed load. That shapes when symptoms hit and which allergen to watch.
How do I reduce pollen exposure in Charleston?
Through Charleston's peak windows (tree Mar–May, grass May–Jul, ragweed Aug–Oct), keep windows shut and run AC on recirculate; counts run highest on dry, warm, windy mornings, so push outdoor activity to late afternoon or just after rain, which clears pollen from the air. A HEPA purifier indoors, a saline rinse after being outside, showering before bed, and starting antihistamines a week or two before your worst local window all measurably cut symptoms.
What pollen index counts as high?
Pollen is reported on a categorical scale — None, Low, Moderate, High, and Very High. "High" and above means most allergy sufferers notice symptoms even with brief outdoor exposure, and sensitized people should limit time outside and pre-medicate. "Low" to "Moderate" usually only affects highly sensitive individuals.
What is the allergy forecast in Charleston today?
The allergy forecast is the airborne-pollen outlook that drives hay fever — exactly what this page tracks. Today's pollen level for Charleston is shown above, broken into the tree, grass, and ragweed pollen behind most seasonal allergies. When the reading is High or Very High, plan for symptoms and pre-medicate; the seasonal calendar below shows which allergen leads in each part of the year.

More for Charleston

See the full Charleston, UT weather forecast — hour-by-hour outlook, NOAA radar, satellite, and air quality.

Pollen counts nearby in Utah