Roseville, Minnesota pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Roseville, Minnesota is high; ragweed is high; grass and mugwort are low.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed declining, grass no longer expected, mugwort no longer expected.
7-Day Trend
Over the next week grass, mugwort, and ragweed will increase.
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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) | Low | 9/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 9/100 |
| Ragweed (Ambrosia) | High | 58/100 |
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) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Moderate | 38/100 |
Local Environmental Conditions
At Roseville, here, just around the area, the waterside growth here is largely hazel and willow, both efficient wind-pollen dispersers. Here, a short distance from here, a park where mown turf grass and ornamental trees add grass and ragweed pollen. The general pattern described here holds fairly steady across nearby areas with similar land cover.
In Roseville, the bank's hazel and willow kick off the pollen season ahead of the rest, usually the first pollen source active, peaking sometime in February or March. Grass pollen becomes the dominant allergen through late spring, peaking in June, with ragweed climbing to its own high point from mid-August through October.
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Resource Hub
Sports venues in Roseville, Minnesota 2 sports venues
Frequently Asked Questions About Pollen in Minnesota
Is pollen high in Roseville, Minnesota right now?
On 20 September 2026, overall pollen levels in Roseville, Minnesota are high. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Roseville, Minnesota tomorrow?
On 21 September 2026, pollen conditions in Roseville, Minnesota will be different from today, with ambrosia continuing to decline
Is pollen expected to decrease in Roseville, Minnesota 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 Roseville, Minnesota?
On 20 September 2026, Ambrosia is the dominant pollen source in Roseville, Minnesota. artemisia and grass are also present but at lower levels.
When is pollen season in Roseville, Minnesota?
How often is the Roseville, Minnesota pollen forecast updated?
The Roseville, Minnesota pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Roseville, Minnesota 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 Roseville, Minnesota 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 Roseville, Minnesota, 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).
