Town of Johnstown pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Town of Johnstown is low; grass, mugwort, and ragweed are low. Tomorrow (10 August 2026) levels are similar - grass remains low, mugwort remains low, 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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This area, just around the area, has tree cover made up mostly of oak and birch, both significant spring allergen sources. As with most local readings, actual levels can vary somewhat with short-term weather swings. The general pattern described here holds fairly steady across nearby areas with similar land cover.
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):
Low
2/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
8/100
-
Ragweed (Ambrosia):
Low
24/100
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):
Low
9/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
15/100
-
Ragweed (Ambrosia):
Medium
31/100
Air quality in Town of Johnstown
View air qualityFrequently Asked Questions
Is pollen high in Town of Johnstown right now?
On 9 August 2026, overall pollen levels in Town of Johnstown are low. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Town of Johnstown tomorrow?
On 10 August 2026, pollen conditions in Town of Johnstown will be different from today, with grass at low levels, artemisia at low levels and ambrosia increasing
Is pollen expected to decrease in Town of Johnstown 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 Town of Johnstown?
On 9 August 2026, Grass is the dominant pollen source in Town of Johnstown. ambrosia and artemisia are also present but at lower levels. cypress are not currently active.
When is pollen season in Town of Johnstown?
How often is the Town of Johnstown pollen forecast updated?
The Town of Johnstown pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Town of Johnstown 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 Town of Johnstown 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 Town of Johnstown, 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: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Town of Johnstown.
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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.