Pollen Forecast for Petrified Forest National Pa, Arizona

The quantity of pollen grains in the air for Friday will remain relatively stable in the moderate range. No change doesn't mean no pollen, it just means that pollen producing plants are delivering pollen at a steady pace.

Concentration of pollen grains in the air for Saturday will be on the increase in the moderate range. This forecast of higher pollen concentration is based on strong winds and decreasing humidity. The increase of this magnitude could make it more difficult for those with allergies.