Pollen Forecast for Grand Terrace, California

Based on past pollen counts and expected weather conditions, pollen levels for Thursday will remain stable in the low range. Pollen producing plants are at a relatively steady level of pollination at this time.

The amount of pollen in the air for Friday will be falling in the low range. This lowering of pollen concentrations is a result of rising humidity, weakening winds and expected precipitation in the afternoon which tends to wash pollen out of the air.