Very Low Pollen in Simi Valley, CA

Very low today, mostly grass pollen.

Last updated July 20, 2026

Today's index1out of 5Very Low
GrassVery Lowoff-season

What to do today

  • Pollen levels are very low right now. It's a great day to enjoy the outdoors!

Forecast

Tue
1
Wed
1
Thu
1
Fri
N/A

About pollen in Simi Valley

Grass pollen is the only category showing any activity in Simi Valley today, and even that is running very low. Most people, including those with sensitivities, should notice little to no irritation from pollen at this point. Looking ahead, grass levels are expected to hold steady at this low level over the next several days, so no significant change is on the horizon. This lines up with the seasonal pattern for the area: the region's oaks and sycamores typically release their heaviest pollen back in spring, and grass pollen usually tapers off by mid to late summer as drier conditions set in. With ragweed season still a ways off, this is generally a calmer stretch for allergy sufferers in the valley.

Common questions

What is the pollen count in Simi Valley, CA today?
Simi Valley, CA is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. The five-day outlook holds steady around 1 of 5.
Is grass pollen high in Simi Valley, CA right now?
Grass pollen is very low today at 1 of 5, and it's past its peak season. Most people won't notice it.