Very Low Pollen in Vacaville, 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 Vacaville
Pollen levels in Vacaville are quite mild today, with weeds registering as the only active category, and even that is barely noticeable. Anyone with sensitivities should find conditions easy to manage, as the overall count sits at the low end of the scale with little to disrupt daily outdoor activities. Looking ahead, the next several days should bring a continuation of this calm pattern, with weed pollen expected to hold steady at the same subdued level through the coming week. This is a fairly typical lull for mid-August, as the valley's oaks and other trees finished their pollen release back in spring, and grasses have largely wound down from their late-spring peak. With ragweed and other late-summer weeds not yet in full swing, this stretch offers a comfortable window before autumn's weed pollen season begins to build in earnest.
Common questions
- What is the pollen count in Vacaville, CA today?
- Vacaville, 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 Vacaville, 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.