Pico Rivera pollen forecast - today, tomorrow and the week ahead
Today (16 July) pollen in Pico Rivera is low; cypress, grass, and ragweed are low. Tomorrow (17 July 2026) levels are similar - grass remains low. Over the following five days cypress, grass, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Pico Rivera's San Gabriel Valley setting features olive, Mexican fan palm, and cottonwood as the main tree pollen sources, with exposure varying between the limited greener residential areas and the more built-up industrial and commercial corridors along Rosemead Boulevard. The San Gabriel River corridor provides the most significant local green space, while the flat, densely developed suburban landscape means limited local vegetation variation and Santa Ana winds can periodically transport pollen from the mountains.
Today - 16 July
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
19/100
-
Grass (Poaceae):
Low
23/100
-
Oak (Quercus):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Low
19/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 17 July
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
1/100
-
Oak (Quercus):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
None
0/100
Frequently Asked Questions
Is pollen high in Pico Rivera right now?
On 16 July 2026, overall pollen levels in Pico Rivera are low. Cypress is the main contributor to airborne pollen, while grass and ambrosia remain at lower levels
Will pollen levels change in Pico Rivera tomorrow?
On 17 July 2026, pollen conditions in Pico Rivera will be different from today, with grass at low levels
Is pollen expected to decrease in Pico Rivera this week?
According to the five-day outlook, cypress, grass, and ambrosia pollen levels will increase later in the week.
Which pollen types are currently active in Pico Rivera?
On 16 July 2026, Cypress is the dominant pollen source in Pico Rivera. grass and ambrosia are also present but at lower levels. birch, oak, willow, alder, and artemisia are not currently active.
When is pollen season in Pico Rivera?
How often is the Pico Rivera pollen forecast updated?
The Pico Rivera pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Pico Rivera come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Pico Rivera based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Pico Rivera, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Want to see pollen forecasts for other cities in United States?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 16 July 2026 at 05:36 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Pico Rivera.
For long term forecasts and maps, see the Airmine app
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.