Yucaipa pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Yucaipa is medium; ragweed is medium; grass and mugwort are low. Tomorrow (10 August 2026) levels are similar - mugwort remains low, ragweed declining. Over the following five days grass, mugwort, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Yucaipa's San Bernardino Mountain foothill California setting features valley oak, chamise chaparral, and cherry as the main tree pollen sources, with exposure varying between the chaparral-covered mountain slopes and the more built-up commercial corridors along Yucaipa Boulevard. The higher elevation means chaparral and woodland species contribute substantially different pollen than in lower Inland Empire cities, while the mountain backdrop creates downslope wind conditions that concentrate pollen in the valley floor areas.
Today - 9 August
-
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
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
21/100
-
Ragweed (Ambrosia):
Medium
27/100
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 - 10 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
15/100
-
Ragweed (Ambrosia):
Low
22/100
Air quality in Yucaipa
View air qualityFrequently Asked Questions
Is pollen high in Yucaipa right now?
On 9 August 2026, overall pollen levels in Yucaipa are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Yucaipa tomorrow?
On 10 August 2026, pollen conditions in Yucaipa will be different from today, with artemisia at low levels and ambrosia continuing to decline
Is pollen expected to decrease in Yucaipa this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Yucaipa?
On 9 August 2026, Ambrosia is the dominant pollen source in Yucaipa. artemisia and grass are also present but at lower levels. cypress are not currently active.
When is pollen season in Yucaipa?
How often is the Yucaipa pollen forecast updated?
The Yucaipa pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Yucaipa 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 Yucaipa 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 Yucaipa, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Yucaipa.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.