Allergies & Pollen
Pollen Forecast for Upland, California
8.4
Medium-High
Alder, Cedar/Juniper and Ash
Today
Concentration of pollen grains in the air for Tuesday will be unchanged in the high range. Constant and seasonally normal weather conditions tend to stabilize pollen concentrations in the outdoor air.
Outlook
Pollen concentrations for Wednesday will be falling in the moderate range. This decrease is due to falling temperatures, rising humidity, and expected precipitation in the morning and evening which tends to wash pollen out of the air.