Low Pollen in Riverside, CA
Low today, mostly grass pollen.
Last updated July 1, 2026
Today's indexLow
GrassLowoff-season
What to do today
- It's a good day for outdoor activities since pollen levels are low.
- Do you know which plants cause your pollen allergy? Check out the pollen data to be prepared.
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About pollen in Riverside
Grass pollen is the main player in Riverside today, sitting at a Low level on the Universal Pollen Index and accounting for the overall reading of 2. The five-day outlook holds steady, with grass staying at Low across the entire stretch and no notable swings expected. Late June falls within the typical late-spring-to-early-summer window when grasses tend to be the dominant source, so this aligns with the season. Tree pollen, which generally crests earlier in spring from regional species like oak, mulberry, and olive, isn't being reported today, and weed pollen has no data either. With ragweed season still months off, grass remains the only measurable contributor for now.
Common questions
- What is the pollen count in Riverside, CA today?
- Riverside, CA is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. The five-day outlook holds steady around 2 of 5.
- Is grass pollen high in Riverside, CA right now?
- Grass pollen is low today at 2 of 5, and it's past its peak season. Most people won't have symptoms.