Salem, MO Pollen Calendar
Here is the month-by-month allergy season for Salem, MO, based on Missouri's seasonal pollen pattern. Right now, in July, Grass is usually the allergen to watch. The worst month is typically September, and the calmest is January. For the exact numbers today, check your live reading below.
Today in Salem
Monday, July 27, 2026
The Salem 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 Salem this month:
The Worst and Best Months in Salem
Salem'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.
Missouri has a spring tree season and a heavy ragweed season in late summer and early fall.
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 Missouri can help with testing and longer-term options like allergy shots.
Keep Track of Pollen in Salem
The calendar tells you what to expect. Your daily report tells you what's actually happening:
- Salem pollen count today — live tree, grass, and weed levels with a 5-day forecast.
- Salem air quality — today's AQI and the pollutants behind it.
- Missouri pollen season — the statewide calendar and other cities.
- Today's worst pollen cities — see where Salem ranks right now.
Get Salem pollen alerts
We send a free email whenever pollen is High or Very High in Salem. No spam, no daily emails when pollen is low. Just a heads-up on the days that matter.
Sign up for free alertsSeasonal pattern based on Missouri pollen data. Today's reading updated daily. MyPollenPal