Montana, United States

Missoula, MT Pollen Count Today

View the current allergy index, primary allergen, tree, grass, and weed pollen levels, plus the 5-day pollen forecast for Missoula.

Today's pollen count in Missoula

Today in Missoula, Montana, the forecasted pollen level is high with an allergy index of 4. The primary allergen is Birch. Use the forecast below to see whether conditions are likely to rise, ease, or stay steady over the next few days.

AllergyAva shows forecasted pollen levels and allergy risk estimates for Missoula. Actual exposure can vary by neighborhood, weather, and time outdoors.

Current level
High
Allergy index
4
Main allergen
Birch

Pollen Level

High Risk
4

Pollen Index

Primary Allergen

Birch

Limit outdoor exposure. Take allergy medication and monitor symptoms closely.

87°

Temp

51%

Humidity

14

Wind mph

Source: Includes pollen data from Google

Updated June 27, 2026 at 3:57 PM ET.

Check pollen in another city or ZIP code

5-Day Pollen Forecast

Best day this week

Wed - Very Low

Worst day this week

Today - High

Today
88°/60°
4
High
Tree3
Grass0
Weed0
Tomorrow
79°/56°
3
Moderate
Tree4
Grass0
Weed0
Mon
82°/51°
2
Low
Tree4
Grass0
Weed0
Tue
86°/51°
2
Low
Tree3
Grass0
Weed0
Wed
87°/64°
1
Very Low
Tree4
Grass0
Weed0
None
Very Low
Low
Moderate
High
Very High

Allergen Breakdown

Birch
High
Cedar
High
Oak
Moderate
Maple
Low

Pollen & Allergy Guide for Missoula, MT

Missoula, Montana residents can experience significant pollen exposure throughout the year. Tree pollen typically peaks during spring months, while grass pollen dominates in summer. Fall brings elevated ragweed levels, which is one of the most common allergens in the region.

When Is Allergy Season in Missoula?

Allergy season in Missoula generally begins in early spring as trees start releasing pollen. The most intense period varies by allergen type. Monitoring daily pollen counts with Allergy Ava helps you plan ahead and manage symptoms proactively.

Tips for Managing Allergies in Missoula

Track your daily pollen exposure, consult with a local allergist for personalized treatment, and consider starting preventive medications 2-4 weeks before your peak allergy season. Indoor air quality management with HEPA filters can also make a significant difference.

Missoula allergy season calendar

Tree pollen

In season now

Spring

Often drives early-season symptoms

Grass pollen

In season now

Late spring to summer

Can rise around lawns, parks, and open areas

Ragweed/weed pollen

Late summer to fall

Major fall allergy trigger

Mold spores

Varies

Often affected by moisture and decaying leaves

Common pollen triggers around Missoula

TriggerTypical seasonWhat to know
Tree pollenSpringOften drives early-season symptoms
Grass pollenLate spring to summerCan rise around lawns, parks, and open areas
Ragweed/weed pollenLate summer to fallMajor fall allergy trigger
Mold sporesVariesOften affected by moisture and decaying leaves

Frequently asked questions about pollen in Missoula

What is the pollen count in Missoula today?

Today in Missoula, Montana, the pollen level is high with an allergy index of 4. The main allergen to watch is Birch.

When is allergy season in Missoula, Montana?

Allergy season in Missoula, Montana can vary by allergen and weather conditions. Tree pollen often rises in spring, grass pollen becomes more active in late spring and summer, and weed pollen can remain elevated later in the year depending on local climate and vegetation.

How often should I check the pollen forecast in Missoula?

If you have seasonal allergies in Missoula, it is helpful to check the pollen forecast daily during peak allergy periods. Shifts in wind, rainfall, temperature, and humidity can all change local pollen exposure from one day to the next.

What pollen types affect people in Missoula, Montana?

Missoula residents may be affected by tree pollen, grass pollen, and weed pollen during different parts of the year. The strongest trigger depends on the season, nearby vegetation, and current weather conditions.