Pollen Forecast for Harlan, Iowa

The amount of pollen in the air for Friday will be falling and will remain in the extremely low range. This relief in pollen levels is caused in part by heavy rains in the morning and evening which tend to wash pollen out of the air.

The pollen levels for Saturday will be greater than today's levels but will still remain in the low range. This increase is due to strong winds and decreasing humidity. If you have these allergies, tomorrow will likely be more difficult outdoors.