Indiana Pollen Count Today

Check today's pollen count by city in Indiana. Explore local allergy forecasts, monitor common seasonal allergens, and use city-level trends to plan around high pollen days.

Allergy Ava organizes statewide and local pollen information so you can compare conditions, anticipate seasonal flare-ups, and find relevant allergy forecast pages faster.

Today's pollen count in Indiana

Pollen levels in Indiana can vary by city, weather, vegetation, and season. Choose a local forecast below to see the current allergy index, main allergen, and 5-day outlook for cities including Indianapolis, Fort Wayne, Evansville, South Bend, Fishers, Carmel.

Today's statewide signal

Indiana pollen count by city: Corn Belt wind, lake influence, grass, and ragweed

Indiana allergy conditions vary between Lake Michigan communities, northern Indiana cities, central Indiana suburbs, college-town woodlands, and the warmer lower Ohio River valley. Compare Indianapolis, Fort Wayne, Evansville, South Bend, Fishers, Carmel, Bloomington, and Hammond for local pollen levels, main allergens, weather context, and short-term trend signals.

Data updates regularly to reflect current conditions across Indiana cities.

Highest city index now

Indianapolis

Elm · Very Low

View today's allergy index

Average pollen index: 1
Average humidity: 58%
Average wind: 11 mph

Live city comparison

Today's pollen and weather by city

Sort Indiana cities by pollen index, temperature, or trend. Select a city for its full local forecast.

		Main allergen			Weather context
Indianapolis	1Very Low	Elm	Stable Tomorrow looks similar, near very low conditions.	79°F	Partly sunny Outdoor pollen exposure looks limited for most people today.
Fort Wayne	1Very Low	Elm	Rising Forecast moves toward low conditions tomorrow.	78°F	Breezy Breezy conditions may lift pollen from trees, grasses, weeds, and surfaces.
South Bend	1Very Low	Elm	Stable Tomorrow looks similar, near very low conditions.	78°F	Breezy Breezy conditions may lift pollen from trees, grasses, weeds, and surfaces.
Fishers	1Very Low	Elm	Stable Tomorrow looks similar, near very low conditions.	78°F	Partly sunny Outdoor pollen exposure looks limited for most people today.
Carmel	1Very Low	Elm	Rising Forecast moves toward low conditions tomorrow.	78°F	Partly sunny Outdoor pollen exposure looks limited for most people today.
Bloomington	1Very Low	Elm	Stable Tomorrow looks similar, near very low conditions.	79°F	Humid Outdoor pollen exposure looks limited for most people today.
Hammond	1Very Low	Elm	Rising Forecast moves toward low conditions tomorrow.	78°F	Chance of showers Outdoor pollen exposure looks limited for most people today.
Evansville	0None	None	Stable Tomorrow looks similar, near none conditions.	79°F	Partly sunny Outdoor pollen exposure looks limited for most people today.

Indianapolis

Elm is the main allergen

Very Low

Pollen index

Trend

Stable

79°11 mph46%

Outdoor pollen exposure looks limited for most people today.

Fort Wayne

Elm is the main allergen

Very Low

Pollen index

Trend

Rising

78°18 mph64%

Breezy conditions may lift pollen from trees, grasses, weeds, and surfaces.

South Bend

Elm is the main allergen

Very Low

Pollen index

Trend

Stable

78°16 mph60%

Breezy conditions may lift pollen from trees, grasses, weeds, and surfaces.

Fishers

Elm is the main allergen

Very Low

Pollen index

Trend

Stable

78°6 mph49%

Outdoor pollen exposure looks limited for most people today.

Carmel

Elm is the main allergen

Very Low

Pollen index

Trend

Rising

78°13 mph50%

Outdoor pollen exposure looks limited for most people today.

Bloomington

Elm is the main allergen

Very Low

Pollen index

Trend

Stable

79°7 mph72%

Outdoor pollen exposure looks limited for most people today.

Hammond

Elm is the main allergen

Very Low

Pollen index

Trend

Rising

78°6 mph74%

Outdoor pollen exposure looks limited for most people today.

Evansville

None is the main allergen

None

Pollen index

Trend

Stable

79°8 mph50%

Outdoor pollen exposure looks limited for most people today.

Regional allergy forecast

How Indiana regions compare today

Indianapolis, Fishers, and Carmel central metro

Central Indiana combines mature neighborhood trees, fast-growing suburbs, lawns, parks, construction edges, and nearby agricultural land. Spring maple and oak often give way to grass and fall ragweed.

MapleOakKentucky bluegrassRagweed

Index: 1
Humidity: 48%
Wind: 10

Northern Indiana and Lake Michigan edge

Northern Indiana can be shaped by cooler spring starts, Lake Michigan influence near Hammond and South Bend, river corridors, urban trees, lawns, and moisture that can keep mold relevant after wet periods.

MapleOakGrassMold

Index: 1
Humidity: 66%
Wind: 13

Bloomington and the southern Indiana uplands

Bloomington’s wooded hills, campus tree canopy, parks, limestone valleys, and surrounding rural edges can make spring tree pollen and fall weeds feel different from the flatter central metro pattern.

OakHickoryGrassRagweed

Index: 1
Humidity: 72%
Wind: 7

Evansville and the lower Ohio River valley

Evansville’s warmer river-valley setting can bring earlier spring activity, humid summer grass exposure, and strong late-season ragweed or mold pressure around fields, roadsides, and damp river corridors.

OakGrassRagweedMold

Index: —
Humidity: 50%
Wind: 8

State-specific pollen calendar

When major allergens are active in Indiana

Trees

March to May

MarAprMay

Maple, oak, elm, birch, hickory, cottonwood, and sycamore can drive spring symptoms. Evansville may start earlier in warm years, while northern Indiana may lag during cool Lake-influenced springs.

Grasses

May to July

MayJunJul

Kentucky bluegrass, timothy, orchard grass, fescue, lawns, parks, rights-of-way, and field edges can raise grass pollen during late spring and early summer, especially on dry, breezy days.

Ragweed and other weeds

August to October

AugSepOct

Common ragweed, giant ragweed, pigweed, lamb’s quarters, and other disturbed-ground weeds can drive late-season symptoms across fields, ditches, roadsides, vacant lots, and suburban edges.

Low pollen and indoor season

November to February

NovDecJanFeb

Hard freezes usually lower outdoor pollen, but damp leaves, indoor dust, pet dander, basement mold, and winter humidity swings can still keep symptoms active.

Weather-pollen correlation

What weather means for today's allergy risk

Wind can disperse pollen, rain can temporarily wash particles down, and humidity can increase mold irritation. The city table combines pollen and weather signals so users can compare outdoor risk without opening every city page.

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Preparing today's Indiana pollen dashboard

Fort Wayne, IN 46815

Call to confirm availability

(260) 483-4433

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Showing 6 of 12 published allergist profiles in this area.

About Pollen in Indiana

Indiana allergy sufferers can use this page to monitor pollen trends and find relevant city forecasts when available. Pollen levels vary by season, with tree pollen often peaking in spring, grass pollen becoming more active in late spring and summer, and weed pollen, especially ragweed, remaining a concern in late summer and fall.

Use Allergy Ava's city-level forecasts to plan outdoor activities, manage medication timing, and stay informed about the allergens most prevalent in your area. Our data is updated regularly to give you the most accurate picture of current conditions.

Nearby state pollen forecasts

Comparing nearby states can help you understand regional allergy shifts, seasonal pollen timing, and conditions that may affect travel or outdoor plans.

Illinois pollen forecast Ohio pollen forecast Michigan pollen forecast Kentucky pollen forecast

Indiana pollen forecast for Indianapolis and beyond

Indiana allergy seasons can vary between Indianapolis and surrounding communities because of agricultural land, suburban tree cover, and shifting Midwest weather patterns. People searching for an Indiana pollen forecast often want to understand local pollen conditions beyond a single statewide summary.

Tree pollen often peaks in spring, grass pollen becomes more active in warmer months, and weed pollen can remain troublesome later in the year. Wind, rainfall, and local vegetation can all change day-to-day pollen exposure in Indiana, making city-focused tracking especially helpful.

Frequently asked questions about Indiana pollen forecasts

Why can Indianapolis pollen differ from Hammond or South Bend?

Indianapolis reflects central Indiana’s urban trees, suburbs, lawns, and nearby fields. Hammond and South Bend can also feel Lake Michigan temperature, wind, and moisture effects, which may shift pollen timing and mold exposure.

Is corn pollen the main cause of Indiana fall allergies?

Usually, no. Corn pollen can irritate some people near fields during tasseling, but late-summer and fall allergy symptoms are more often driven by ragweed and other weeds because their lighter pollen travels farther.

Why is ragweed such a problem in Indiana?

Indiana has many places ragweed likes: field edges, ditches, roadsides, construction sites, vacant lots, and disturbed soil. Dry, breezy weather can move ragweed pollen efficiently across both rural and metro areas.

Does Evansville allergy season start earlier than northern Indiana?

It often can. Evansville’s lower Ohio River valley climate is usually warmer than northern Indiana, so some spring trees and grasses may become active earlier, while humidity can also make mold more noticeable.