Allergy in Yellowstone County

Allergy risk reflects the burden of seasonal allergens — primarily airborne pollen from trees, grasses, and weeds, plus mold spores — in a given area. Higher risk levels mean people with allergies are more likely to experience symptoms like sneezing, congestion, and itchy eyes.

Allergy risk in Yellowstone County is reported as a weekly score on a four-point scale: Low, Moderate, High, and Very High. The score reflects the modeled burden of Allergy at the county level, validated against public health data from CDC, HHS, NOAA, and other authoritative sources. Methodology details are available at https://www.hubbubworld.com/intelligence#methodology.

Hubbub World develops proprietary models on top of the underlying surveillance, environmental, and weather data to produce comparable risk scores across all U.S. counties. Each of the seven risks is reported on a four-point scale (Low, Moderate, High, Very High) so the scores are interpretable without needing the raw underlying numbers. The full methodology — including the modeling approach, validation against authoritative sources, and known limitations — is documented at https://www.hubbubworld.com/intelligence#methodology. The health risk data on Hubbub World is for informational purposes only and does not constitute medical advice. Always consult a healthcare professional for personal health decisions.

Current Allergy risk levels and 30-day forecasts for Yellowstone County are exclusive to the bub app, available free on iOS, Android, and Apple Watch at https://bub.hubbubworld.com. This web page is the six-week historical archive — the bub app is where today's data and forecasts live.

This page shows the six-week weekly history for Yellowstone County as a heatmap. To compare Yellowstone County against other counties in Montana, visit the Montana state page on this hub — it links to every county. For an interactive map view that compares all counties side by side, get the bub app at https://bub.hubbubworld.com.