MT
Montana Pollen Reports
Montana experiences a high-elevation semi-arid to alpine climate with cold winters, warm dry summers, and dramatic day-night temperature swings.
No active PollyMap Partner in Montana yet
We're seeking a pollen partner in Montana.
PollyMap doesn't publish cheap forecast estimates — the kind that guess what might be in the air and are often wrong by the time you read them. Every report on PollyMap is real airborne pollen and mold, captured by a PollyKit air sampler and counted under a microscope by a trained local partner.
We're actively seeking an allergy clinic or qualified collector to become the Official PollyMap Partner for Montana. Exclusive territory, weekly content, and AI-assisted analysis included.
Pollen patterns across Montana
Juniper, cedar, and cottonwood drive an early-spring tree season. Grasses peak in early summer and sagebrush is the dominant fall weed.
Montana pollen calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| mold |
Featured cities in Montana
Don't see your city? PollyMap partners can serve any city in Montana — request a local report below.
Don't see your city?
We cover every city in Montana through our partner network. Request a report for your town and we'll route it to the nearest certified allergist.
Latest reports
Frequently asked questions
When is allergy season in Montana?
Allergy season in Montana typically runs from late winter through fall. Tree pollen rises first, followed by grass pollen in late spring and early summer, and weed pollen (especially ragweed) in late summer and fall.
What pollen is highest in Montana?
In Montana, the highest-pollen species are typically Juniper, Cedar, Cottonwood in spring, Brome grass in early summer, and Sagebrush in fall.
What months are worst for allergies in Montana?
For most people, April and May (tree pollen) and September (ragweed) are the most difficult months in Montana, with grass pollen creating a third peak in June.
Does Montana have mold allergies?
Yes. The region's climate supports both outdoor and indoor mold exposure — particularly Cladosporium, Alternaria. Outdoor mold spore counts often rise after rain and in fall when leaves decay.
How can clinics become PollyMap collection partners?
Qualified allergy clinics, naturopathic offices, universities, and environmental health professionals can apply to host a PollyKit and become an official PollyMap collection partner. Applications are reviewed by the PollyMap team.
Become the lead collection partner for Montana.
PollyMap is actively seeking allergy clinics and qualified collectors in Montana.
Apply today