Connecticut, United States

Hartford, CT Pollen Count Today

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

Today's pollen count in Hartford

Today in Hartford, Connecticut, the forecasted pollen level is moderate with an allergy index of 3. 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 Hartford. Actual exposure can vary by neighborhood, weather, and time outdoors.

Current level
Moderate
Allergy index
3
Main allergen
Birch

Pollen Level

Moderate Risk
3

Pollen Index

Primary Allergen

Birch

Consider taking antihistamines before heading outside. Keep windows closed.

72°

Temp

55%

Humidity

8

Wind mph

Source: Includes pollen data from Google

Updated May 13, 2026 at 8:00 AM ET.

Check pollen in another city or ZIP code

5-Day Pollen Forecast

Best day this week

Tomorrow - Very Low

Worst day this week

Sun - Moderate

Today
84°/61°
3
Moderate
Tree2
Grass3
Weed0
Tomorrow
78°/57°
1
Very Low
Tree1
Grass1
Weed0
Fri
78°/57°
1
Very Low
Tree1
Grass1
Weed0
Sat
84°/61°
3
Moderate
Tree2
Grass3
Weed0
Sun
84°/61°
3
Moderate
Tree2
Grass3
Weed0
None
Very Low
Low
Moderate
High
Very High

Allergen Breakdown

Grasses
Out of seasonModerate
Maple
Out of seasonLow
Birch
Low
Oak
Low
Ash
Out of seasonVery Low
Pine
Very Low

Pollen & Allergy Guide for Hartford, CT

Hartford, Connecticut 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 Hartford?

Allergy season in Hartford 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 Hartford

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.

Hartford 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 Hartford

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 Hartford

What is the pollen count in Hartford today?

Today in Hartford, Connecticut, the pollen level is moderate with an allergy index of 3. The main allergen to watch is Birch.

When is allergy season in Hartford, Connecticut?

Allergy season in Hartford, Connecticut 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 Hartford?

If you have seasonal allergies in Hartford, 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 Hartford, Connecticut?

Hartford 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.