Somerville pollen forecast — Inner Belt neighborhood

Today (30 August) pollen in Inner Belt, Somerville is moderate; grass and mugwort are moderate; ragweed is vhigh. Tomorrow (31 August 2026) levels are similar - grass remains moderate, mugwort declining, ragweed 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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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

A stretch of hazel and willow lines the water, feeding some of spring's earliest pollen; this sits within the neighborhood's edge. This area, in the wider area, has the park's turf and planted trees form a small but steady source of grass and ragweed pollen. Small shifts in elevation or soil type can move these figures a little either way.

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

    44/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    27/100

  • Ragweed (Ambrosia):

    Vhigh

    77/100

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):

    Moderate

    28/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    10/100

  • Ragweed (Ambrosia):

    High

    67/100

Other Landmarks in Somerville

Frequently Asked Questions

Is pollen high in Somerville right now?

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

Will pollen levels change in Somerville tomorrow?

On 31 August 2026, pollen conditions in Somerville will be different from today, with grass at moderate levels and ambrosia, artemisia continuing to decline

Is pollen expected to decrease in Somerville 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 Somerville?

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

When is pollen season in Somerville?
Hazel and willow along the water get the season underway before other species, usually peaking sometime between late winter and the end of March. Through late spring, grass pollen climbs steadily toward its June peak, and then ragweed picks up the slack, running from mid-August through October. The overall order of species tends to hold steady, even as exact dates shift slightly each year.
How often is the Somerville pollen forecast updated?

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

Does pollen in Somerville 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 Somerville 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 Somerville, 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 20:26 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Inner Belt, Somerville.

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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.