Mammoth Lakes pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Mammoth Lakes is high; grass is high; ragweed is medium. Tomorrow (17 July 2026) levels are similar - ragweed remains medium, grass declining. Over the following five days grass and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Mammoth Lakes's setting on a high Sierra Nevada basin near 8,000 feet supports Jeffrey pine forest, mountain sagebrush, and alpine wildflower meadows as the leading local vegetation, all factoring into the pollen count through the year. Wind patterns across the area help determine how far pollen travels from these source plants. Residents who spend time outdoors around Mammoth Lakes typically notice the shift as each season turns over.

Today - 16 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    High

    51/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Medium

    33/100

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):

    Medium

    45/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Medium

    29/100

Air quality in Mammoth Lakes

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Frequently Asked Questions

Is pollen high in Mammoth Lakes right now?

On 16 July 2026, overall pollen levels in Mammoth Lakes are high. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels

Will pollen levels change in Mammoth Lakes tomorrow?

On 17 July 2026, pollen conditions in Mammoth Lakes will be different from today, with ambrosia at medium levels and grass continuing to decline

Is pollen expected to decrease in Mammoth Lakes this week?

According to the five-day outlook, grass and ambrosia pollen levels will increase later in the week.

Which pollen types are currently active in Mammoth Lakes?

On 16 July 2026, Grass is the dominant pollen source in Mammoth Lakes. ambrosia are also present but at lower levels. artemisia, birch, cypress, oak, willow, and alder are not currently active.

When is pollen season in Mammoth Lakes?
In Mammoth Lakes, pollen season begins with olive and acacia starting in January with eucalyptus following close behind through February. Grass pollen then peaks through March and April, and mugwort extends exposure into September. The Southern California Mediterranean climate advances the season, and onshore Pacific breezes can periodically disperse pollen, a defining feature of the local season.
How often is the Mammoth Lakes pollen forecast updated?

The Mammoth Lakes pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Mammoth Lakes 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 Mammoth Lakes 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 Mammoth Lakes, 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.

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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Mammoth Lakes.

For long term forecasts and maps, see the Airmine app

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