Pollen Alerts For Grass Valley, OR
Pollen Alert
-Pollen Index: 9 Pollen Level: medium-high Predominant Pollen: Grass, Locust and Nettle. Pollen concentrations for Wednesday will be falling in the moderate range. This relief in pollen levels is caused in part by falling temperatures, rising relative humidity and weaker winds.
0
2.5
4.9
7.3
9.7
12.0
