Reno pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Reno is high; ragweed is high; grass and mugwort are moderate. Tomorrow (31 August 2026) levels are similar - ragweed remains high, grass increasing, mugwort increasing. 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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Reno's high desert setting means cottonwood along the Truckee River corridor and introduced olive and ash trees are the main allergenic pollen sources, with exposure varying between these green riparian areas and the more arid urban core. Surrounding Great Basin sagebrush and grassland contribute seasonal shrub and grass pollen, while the valley setting concentrates pollen under prevailing winds.

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):

    Moderate

    43/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    32/100

  • Ragweed (Ambrosia):

    High

    60/100

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):

    High

    63/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    53/100

  • Ragweed (Ambrosia):

    High

    70/100

Air quality in Reno

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Pollen forecast for neighborhoods and landmarks in Reno

Frequently Asked Questions

Is pollen high in Reno right now?

On 30 August 2026, overall pollen levels in Reno are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels

Will pollen levels change in Reno tomorrow?

On 31 August 2026, pollen conditions in Reno will be different from today, with ambrosia at high levels and grass, artemisia increasing

Is pollen expected to decrease in Reno this week?

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

Which pollen types are currently active in Reno?

On 30 August 2026, Ambrosia is the dominant pollen source in Reno. grass and artemisia are also present but at lower levels. cypress are not currently active.

When is pollen season in Reno?
Reno's pollen season opens with cottonwood along the Truckee River from late February, followed by introduced olive and ash through March and April. Grass pollen peaks through May and June. The high desert setting and semi-arid climate mean fewer rainfall interruptions than in wetter US cities, while the Great Basin sagebrush contributes seasonal shrub pollen. The enclosed Truckee Meadows valley concentrates pollen under calm spring conditions.
How often is the Reno pollen forecast updated?

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

Does pollen in Reno 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 Reno 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 Reno, 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 Reno.

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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.

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.