Johns Creek pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Johns Creek is high; ragweed is high; grass is moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) grass remains moderate, ragweed remains high, mugwort at low levels.
7-Day Trend
Over the next week grass, mugwort, and ragweed will decrease.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | Moderate | 33/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | High | 63/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | — |
| Grass (Poaceae) | Moderate | 48/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 13/100 | |
| Ragweed (Ambrosia) | High | 70/100 |
Local Environmental Conditions
Johns Creek's parks and the Chattahoochee River corridor feature oak, pine, and sweet gum as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Georgia Piedmont woodland and the Chattahoochee River National Recreation Area contribute substantial tree and grass pollen, with the river corridor connecting Johns Creek to the broader Atlanta metropolitan pollen landscape.
Johns Creek's pollen season opens with oak and pine from late January, producing intense tree pollen through February and March. Grass pollen follows through April and May, with ragweed extending the season into October. The Chattahoochee River corridor channels airflows and connects Johns Creek to the broader Atlanta metropolitan pollen landscape, while surrounding Georgia Piedmont woodland contributes substantial tree pollen under the humid subtropical climate.
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Frequently Asked Questions About Pollen in Georgia
Is pollen high in Johns Creek right now?
On 20 September 2026, overall pollen levels in Johns Creek are high. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Johns Creek tomorrow?
On 21 September 2026, pollen conditions in Johns Creek will be different from today, with artemisia at low levels, grass at moderate levels, ambrosia at high levels
Is pollen expected to decrease in Johns Creek this week?
According to the five-day outlook, artemisia, grass, and ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Johns Creek?
On 20 September 2026, Ambrosia is the dominant pollen source in Johns Creek. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Johns Creek?
How often is the Johns Creek pollen forecast updated?
The Johns Creek pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Johns Creek 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 Johns Creek 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 Johns Creek, 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.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
