Allergies & Pollen
Pollen Forecast for Ottawa, Illinois
0.8
Low
Ragweed
Today
The pollen levels for Thursday will be falling and will remain in the extremely low range. This relief in pollen levels is caused in part by falling temperatures, higher dew points and lack of strong winds.
Outlook
Concentration of pollen grains in the air for Friday will be increasing but will stay in the very low range. The cause for the rising pollen levels is higher temperatures and the lower dewpoint.