South Pekin, Illinois Pollen Count

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

South Pekin, IL · Pollen season

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

Based on the seasonal pollen calendar for this region.

Pollen by type this season

South Pekin pollen calendar

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

JFMAMJJASOND
TreeFeb–Apr
GrassApr–Sep
WeedAug–Nov

How South Pekin’s pollen count works

The calendar above is tuned to South Pekin’s warm, humid subtropical Southeast climate, not a national average: tree pollen peaks Feb–Apr, grass Apr–Sep, and ragweed Aug–Nov here. Those windows are why grass pollen is the one in season in South Pekin right now.

No live count is wired up for South Pekin 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 South Pekin?
The late-summer ragweed run is the headline in South Pekin: weed pollen peaks Aug–Nov, the longest and most punishing window of the year here. Tree pollen comes first (Feb–Apr) and grass bridges the gap (Apr–Sep), but it's the ragweed stretch that floors most sufferers. Currently, grass pollen is what's driving counts this month.
What's in the air in South Pekin right now?
In June, grass pollen is in season in South Pekin — 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 South Pekin's warm, humid subtropical Southeast climate.
Is tree or grass pollen higher in South Pekin in spring?
In spring, tree pollen leads in South Pekin — trees pollinate Feb–Apr, ahead of grass (Apr–Sep). 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 South Pekin's pollen season distinctive?
South Pekin sits in the warm, humid subtropical Southeast zone, which means an unusually long, overlapping season — the warm climate stretches grass across much of the year and pushes ragweed deep into autumn. That shapes when symptoms hit and which allergen to watch.
How do I reduce pollen exposure in South Pekin?
Through South Pekin's peak windows (tree Feb–Apr, grass Apr–Sep, ragweed Aug–Nov), 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.

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