La Mesa pollen forecast — Helix Charter HS's Baseball Diamond neighborhood
Today (30 August) pollen in Helix Charter HS's Baseball Diamond, La Mesa is moderate; ragweed is moderate; grass is low. Tomorrow (31 August 2026) levels are similar - grass remains low, ragweed remains moderate, mugwort at low levels. 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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Helix Charter HS's Baseball Diamond sits in the La Mesa suburban landscape of eastern San Diego County, with oak, eucalyptus, and introduced urban trees as the main surrounding pollen sources. Surrounding San Diego inland suburban vegetation and the Navajo Canyon area contribute substantial grass and scrub pollen, while the mild climate advances the season compared to coastal San Diego schools and mugwort extends into September throughout.
Today - 30 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
16/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Moderate
37/100
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 - 31 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
23/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
3/100
-
Ragweed (Ambrosia):
Moderate
45/100
Sports venues in La Mesa
Frequently Asked Questions
Is pollen high in La Mesa right now?
On 30 August 2026, overall pollen levels in La Mesa are moderate. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in La Mesa tomorrow?
On 31 August 2026, pollen conditions in La Mesa will be different from today, with ambrosia at moderate levels, artemisia at low levels, grass at low levels
Is pollen expected to decrease in La Mesa 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 La Mesa?
On 30 August 2026, Ambrosia is the dominant pollen source in La Mesa. grass are also present but at lower levels. artemisia and cypress are not currently active.
When is pollen season in La Mesa?
How often is the La Mesa pollen forecast updated?
The La Mesa pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in La Mesa 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 La Mesa 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 La Mesa, 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: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Helix Charter HS's Baseball Diamond, La Mesa.
Get the full experience in 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.
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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.