Nephi pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Nephi is medium; grass, mugwort, and ragweed are medium. Tomorrow (10 August 2026) levels are similar. 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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The vegetation around Nephi, on a valley farming town at the southern end of Utah's Salt Lake Valley chain, is dominated by irrigated alfalfa fields and sagebrush foothills, with piñon-juniper margins adding further seasonal pollen exposure. Wind patterns across the area help determine how far pollen travels from these source plants. None of this differs sharply from one year to the next barring unusual weather.

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):

    Medium

    30/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    37/100

  • Ragweed (Ambrosia):

    Medium

    28/100

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):

    Medium

    34/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    44/100

  • Ragweed (Ambrosia):

    Medium

    33/100

Air quality in Nephi

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Pollen forecast for neighborhoods and landmarks in Nephi

Frequently Asked Questions

Is pollen high in Nephi right now?

On 9 August 2026, overall pollen levels in Nephi are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels

Will pollen levels change in Nephi tomorrow?

On 10 August 2026, pollen conditions in Nephi will be similar to today, with ambrosia at medium levels, artemisia at medium levels, grass at medium levels

Is pollen expected to decrease in Nephi 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 Nephi?

On 9 August 2026, Ambrosia is the dominant pollen source in Nephi. artemisia and grass are also present but at lower levels. cypress are not currently active.

When is pollen season in Nephi?
In Nephi, pollen season begins with juniper and cottonwood starting in March with ash joining in and continuing through April. Grass pollen builds through May and June, and sagebrush and ragweed extend the season into September. The semi-arid high-elevation climate means fewer rainfall interruptions than in wetter US regions throughout the year.
How often is the Nephi pollen forecast updated?

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

Does pollen in Nephi 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 Nephi 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 Nephi, 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?

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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 Nephi.

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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.