Very Low Pollen in Vallejo, CA
Very low today, mostly weed pollen.
Last updated August 15, 2026
What to do today
- Pollen levels are very low right now. It's a great day to enjoy the outdoors!
Forecast
About pollen in Vallejo
Pollen levels in Vallejo remain quiet today, with weeds providing the only measurable activity, and even that is at a very low level. Most people, including those with sensitivities, should notice little to no irritation from pollen at this point. Looking ahead, the next several days show no significant change, with weed pollen expected to hold steady at that same low level. This is a fairly typical lull for mid-August, as the region's oaks, pines, and other trees finished their pollen release back in spring, and grasses have largely wound down as well. The bigger seasonal shift to watch for is ragweed and other late-summer weeds, which tend to become more active as fall approaches, so conditions could gradually pick up in the weeks ahead.
Common questions
- What is the pollen count in Vallejo, CA today?
- Vallejo, CA is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 1 of 5.
- Is weed pollen high in Vallejo, CA right now?
- Weed pollen is very low today at 1 of 5, and it's past its peak season. Most people won't notice it.