Basalt pollen forecast - today, tomorrow and the week ahead
Today (20 July) pollen in Basalt is high; grass is high; ragweed is low. Tomorrow (21 July 2026) levels are similar - grass remains high, ragweed increasing. Over the following five days ragweed will increase; grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Basalt sits on the confluence of the Roaring Fork and Frying Pan rivers, where the dominant vegetation is a mix of cottonwood along the rivers, aspen groves, and sagebrush hillsides, shaping the local pollen profile across the seasons. Exposure varies with proximity to green space versus the more built-up parts of Basalt. As with most of the region, counts tend to build gradually rather than spike overnight.
Today - 20 July
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
High
53/100
-
Oak (Quercus):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Low
20/100
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 - 21 July
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
High
65/100
-
Oak (Quercus):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Medium
32/100
Air quality in Basalt
View air qualityFrequently Asked Questions
Is pollen high in Basalt right now?
On 20 July 2026, overall pollen levels in Basalt are high. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in Basalt tomorrow?
On 21 July 2026, pollen conditions in Basalt will be different from today, with grass at high levels and ambrosia increasing
Is pollen expected to decrease in Basalt this week?
According to the five-day outlook, grass pollen levels are expected to gradually decrease, while ambrosia and artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Basalt?
On 20 July 2026, Grass is the dominant pollen source in Basalt. ambrosia are also present but at lower levels. willow, alder, artemisia, birch, cypress, and oak are not currently active.
When is pollen season in Basalt?
How often is the Basalt pollen forecast updated?
The Basalt pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Basalt 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 Basalt 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 Basalt, 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: 20 July 2026 at 16:32 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Basalt.
For long term forecasts and maps, see the Airmine app
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.