Pollen Forecast by City

This page provides daily pollen forecasts across selected U.S. and Australian cities. Pollen levels can vary significantly based on local weather conditions, vegetation, and seasonality. In spring, tree pollen dominates in much of the country, while grass pollen rises in late spring and summer. Weed pollen, including ragweed, typically peaks in late summer and fall.

Coverage varies by country and location. Where tree, grass, and weed data are all available, the 0–100 score is weighted across all three. Where a type is unavailable, the page clearly labels a limited-coverage estimate based on the highest available index instead.

We update our data every morning using the Google Pollen API, which analyzes real-time atmospheric conditions and vegetation data. Whether you're checking pollen levels for your daily commute, planning outdoor activities, or managing seasonal allergies, our city-by-city forecasts give you the information you need.