Pollen Forecast for Washington, District of Columbia

Concentration of pollen grains in the air for Tuesday will be falling into the extremely low range. This lowering of pollen concentrations is a result of rising humidity and heavy rains in the morning, afternoon and evening which tend to wash pollen out of the air.

The pollen levels for Wednesday will be falling and will remain in the extremely low range. This lower level is caused by strong winds and heavy rains in the morning and evening which tend to wash pollen out of the air.