Charles City, IA Pollen Calendar

Today in Charles City

Monday, July 27, 2026

The Charles City Pollen Calendar, Month by Month

Each month is rated from Low to Very High, with the allergen that usually drives it. The current month is outlined.

What's Active in July

These allergens are usually in the air around Charles City this month:

The Worst and Best Months in Charles City

Charles City's pollen usually peaks in September, driven by Ragweed. If your allergies flare on the same weeks every year, that is usually why. The calmest month is typically January.

Iowa has a spring tree season and a very heavy ragweed season across its farmland in late summer.

A pollen calendar shows the usual pattern, but weather shifts it. A warm winter pulls tree season earlier, and a late frost stretches ragweed into November. Start any allergy medication a week or two before your worst month, and check the daily count to catch the spikes. If symptoms hit hard every season, an allergist in Iowa can help with testing and longer-term options like allergy shots.

Keep Track of Pollen in Charles City

The calendar tells you what to expect. Your daily report tells you what's actually happening:

• Charles City pollen count today — live tree, grass, and weed levels with a 5-day forecast.
• Charles City air quality — today's AQI and the pollutants behind it.
• Iowa pollen season — the statewide calendar and other cities.
• Today's worst pollen cities — see where Charles City ranks right now.

Get Charles City pollen alerts

We send a free email whenever pollen is High or Very High in Charles City. No spam, no daily emails when pollen is low. Just a heads-up on the days that matter.