Low Pollen in Riverside, CA
Low today, mostly weed pollen.
Last updated August 15, 2026
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.
Forecast
About pollen in Riverside
Weed pollen is the only type registering in Riverside today, and it sits at a low level. Most residents should move through the day without much irritation, though those who are especially sensitive to weeds may notice mild symptoms, particularly during outdoor activity in the afternoon when pollen tends to circulate more freely. Looking ahead, conditions are expected to hold steady over the next several days, with weed pollen remaining in that same low range. This fits the seasonal pattern for mid-August in the region, as spring tree pollen from species like sycamore, olive, and mulberry has long since tapered off, and grass pollen has also settled down after its late-spring peak. What is typically on the rise this time of year is ragweed and other late-summer weeds, so it is worth keeping an eye on gradual upticks as the season progresses toward fall.
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 weed pollen. The five-day outlook holds steady around 2 of 5.
- Is weed pollen high in Riverside, CA right now?
- Weed pollen is low today at 2 of 5, and it's past its peak season. Most people won't have symptoms.