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Was October 26, 2026 allergy season over in Columbus?

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NO

No — ragweed in Ohio keeps going until a hard frost, and Columbus hasn't had one yet.

Why
  • No hard freeze yet; today's low in Columbus is 39°F
  • Average first frost in Columbus: around October 23
  • Ohio weed pollen typifies runs past late October

For Columbus, OH, US · checked 12:29 AM · Open-Meteo air quality, Open-Meteo weather forecast, Huber Heights, OH Pollen Forecast | MyPollenPal, anthosair.com, Are there ticks and mosquitoes in Gulfport, MS today?