IL pollen report
Springfield Pollen Report
Springfield sits in the heart of Illinois farm country — a landscape of cornfields, oak-hickory groves, and some of the heaviest ragweed country in the Midwest. Oak and maple drive the spring, grasses carry the summer, and fall brings the region's signature stretch: ragweed, harvest dust, and mold all at once.
Collection coming soon to Springfield
PollyMap is actively recruiting a verified local partner in Springfield. Be the first to know — or apply to be the partner.
What drives allergies in Springfield
Trees: oak, maple, and hickory (April – June)
Oak (Quercus) and maple dominate the canopy, with hickory contributing. May is the peak.
Grasses: bluegrass and Timothy (May – August)
Lawn and pasture grasses across central Illinois pollinate heavily in June.
Weeds: ragweed (August – frost)
Ragweed (Ambrosia) thrives in Illinois farmland, with September counts among the heaviest in the Midwest.
Mold: harvest-linked
Humid summers and the fall harvest keep Alternaria and Cladosporium active from summer into October.
Historical reports
Cities near Springfield
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
What is the pollen count in Springfield, IL today?
PollyMap publishes real, microscope-verified pollen counts for Springfield — measured from physical air samples. The latest report on this page shows current tree, grass, weed, and mold levels.
Is the pollen count high in Springfield right now?
Springfield's worst stretches are May (oak, maple), June (grasses), and September (ragweed). The measured reports on this page show today's actual levels.
When is allergy season in Springfield, IL?
April through the first hard frost: trees in late spring, grasses in summer, ragweed in the fall, and mold through the humid months.
Why is September so rough in central Illinois?
Ragweed peaks just as the corn and soybean harvest stirs up dust and mold spores — one of the toughest allergy stretches in the Midwest.
Are you an allergy clinic in Springfield? Claim your territory on PollyMap.
PollyMap is a local authority-building tool for allergy clinics, ENT practices, and any clinic that offers allergy care. By becoming the Official PollyMap Partner for your part of Springfield, your clinic gets credited on real pollen reports, receives ready-to-share weekly content, and becomes the go-to local expert patients trust.
We assign each partner a designated territory within the Springfield metro — like a franchise territory. Springfield has room for multiple partners, but once your area is assigned, it's locked to your clinic.
No clinic has claimed a territory in Springfield yet. The best areas go to the first clinics that sign up — once one does, that part of town is off the table for everyone else.
Springfield, Chatham, and the central Illinois corridor make natural PollyMap territories. The first allergy clinic in the area becomes its credited pollen expert.
- Your clinic credited on every Springfield pollen report
- Weekly real-sample reports and ready-to-share content under your brand
- Locked territory — competing clinics can't claim your area
- Become the go-to allergy expert in your part of Springfield