Casper pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Casper is low; grass is low. Tomorrow (17 July 2026) levels are similar - grass increasing, oak at low levels, ragweed at low levels. Over the following five days grass, oak, and ragweed 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.

Casper's North Platte River setting on the Wyoming high plains features cottonwood, sagebrush, and juniper as the main pollen sources, with exposure varying between the irrigated residential and riverside areas and the surrounding high plains desert. The North Platte River corridor is a particularly significant local source, while the Casper Mountain backdrop above creates distinct elevation-based pollen zones between the pine-covered mountain and the sagebrush basin below.

Today - 16 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    25/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    None

    0/100

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 - 17 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    43/100

  • Oak (Quercus):

    Low

    12/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    19/100

Air quality in Casper

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Frequently Asked Questions

Is pollen high in Casper right now?

On 16 July 2026, overall pollen levels in Casper are low. Grass is the main contributor to airborne pollen

Will pollen levels change in Casper tomorrow?

On 17 July 2026, pollen conditions in Casper will be different from today, with oak at low levels, ambrosia at low levels and grass increasing

Is pollen expected to decrease in Casper this week?

According to the five-day outlook, grass, oak, and ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Casper?

On 16 July 2026, Grass is the dominant pollen source in Casper. oak, willow, alder, ambrosia, artemisia, birch, and cypress are not currently active.

When is pollen season in Casper?
Casper's Wyoming high plains setting produces a season opening in late March with cottonwood and elm before grass from surrounding Wyoming rangeland peaks through May and June. Mugwort from surrounding high desert landscape extends exposure into September, while the dry, windy continental climate means fewer rainfall interruptions than in more humid US cities and the North Platte River valley channels airflows.
How often is the Casper pollen forecast updated?

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

Does pollen in Casper 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 Casper 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 Casper, 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: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Casper.

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.