Weather Alerts For Norco, CA

Pollen Index: 8.4 Pollen Level: medium-high Predominant Pollen: Grass, Chenopods and Elm. The quantity of pollen grains in the air for Sunday will be falling in the moderate range. This change results in part from lack of winds and expected precipitation in the afternoon and evening which tends to wash pollen out of the air. Relief is in sight.