Riverside, CA Pollen Forecast
Summary of the forecasted pollen levels in Riverside, CA
The overall pollen levels in Riverside, CA are moderate, with oak, bermuda grass, and weeds being the main contributors. The northern, northeastern, and southeastern areas are the most affected. Pollen levels are expected to gradually decrease over the coming days as various plant species show declining pollen production.
What's in the air in Riverside
Pollen types found in this area throughout the year and their typical risk level.
- ModerateOak
- ModerateAsh
- HighBermuda Grass
- ModerateMugwort
- ModerateRagweed
- LowHickory
This week's biggest contributors
The pollen types with the highest measured levels this week.
- ModerateOak89.0 grains/m³
- ModerateAsh32.0 grains/m³
- HighBermuda Grass26.0 grains/m³
- ModerateMugwort24.0 grains/m³
- ModerateRagweed24.0 grains/m³
- LowHickory7.0 grains/m³
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7-Day Forecast
This forecast represents the expected pollen levels in the area surrounding the selected location.
| Date | Pollen Type | Level |
|---|---|---|
| 2026-05-21 | Grass Pollen | Moderate |
| 2026-05-22 | Grass Pollen | Moderate |
| 2026-05-23 | Grass Pollen | Moderate |
| 2026-05-24 | Grass Pollen | Moderate |
| 2026-05-25 | Grass Pollen | Moderate |
| 2026-05-26 | Grass Pollen | Moderate |
| 2026-05-27 | Grass Pollen | Moderate |
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