Maryland Pollen Count Today

Check today's pollen count by city in Maryland. 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 Maryland

Pollen levels in Maryland 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 Baltimore, Annapolis, Columbia, Frederick, Germantown, Waldorf.

Today's statewide signal

From the Chesapeake Bay to the foothills: Maryland pollen today

Maryland packs coastal water, dense metro development, wooded suburbs, and Appalachian foothills into a relatively small area. Compare pollen and weather across eight cities to see where the season is starting early, peaking, or easing.

Data updates regularly to reflect current conditions across Maryland cities.

Highest city index now

Columbia

Elm · Low

View today's allergy index

Average pollen index: 1
Average humidity: 62%
Average wind: 12 mph

Live city comparison

Today's pollen and weather by city

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

		Main allergen			Weather context
Columbia	2Low	Elm	Falling Forecast eases toward very low conditions tomorrow.	77°F	Breezy Breezy conditions may lift pollen from trees, grasses, weeds, and surfaces.
Frederick	2Low	Elm	Stable Tomorrow looks similar, near low conditions.	77°F	Chance of showers Breezy conditions may lift pollen from trees, grasses, weeds, and surfaces.
Germantown	2Low	Elm	Stable Tomorrow looks similar, near low conditions.	77°F	Partly sunny Watch elm levels and limit long outdoor exposure during peak hours.
Ellicott City	2Low	Elm	Stable Tomorrow looks similar, near low conditions.	77°F	Humid Watch elm levels and limit long outdoor exposure during peak hours.
Baltimore	1Very Low	Elm	Stable Tomorrow looks similar, near very low conditions.	77°F	Partly sunny Outdoor pollen exposure looks limited for most people today.
Annapolis	1Very Low	Elm	Stable Tomorrow looks similar, near very low conditions.	77°F	Breezy Breezy conditions may lift pollen from trees, grasses, weeds, and surfaces.
Silver Spring	1Very Low	Elm	Stable Tomorrow looks similar, near very low conditions.	77°F	Partly sunny Outdoor pollen exposure looks limited for most people today.
Waldorf	0None	None	Rising Forecast moves toward very low conditions tomorrow.	77°F	Humid Outdoor pollen exposure looks limited for most people today.

Columbia

Elm is the main allergen

Low

Pollen index

Trend

Falling

77°16 mph56%

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

Frederick

Elm is the main allergen

Low

Pollen index

Trend

Stable

77°18 mph77%

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

Germantown

Elm is the main allergen

Low

Pollen index

Trend

Stable

77°5 mph56%

Watch elm levels and limit long outdoor exposure during peak hours.

Ellicott City

Elm is the main allergen

Low

Pollen index

Trend

Stable

77°13 mph71%

Watch elm levels and limit long outdoor exposure during peak hours.

Baltimore

Elm is the main allergen

Very Low

Pollen index

Trend

Stable

77°14 mph54%

Outdoor pollen exposure looks limited for most people today.

Annapolis

Elm is the main allergen

Very Low

Pollen index

Trend

Stable

77°15 mph63%

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

Silver Spring

Elm is the main allergen

Very Low

Pollen index

Trend

Stable

77°10 mph46%

Outdoor pollen exposure looks limited for most people today.

Waldorf

None is the main allergen

None

Pollen index

Trend

Rising

77°8 mph71%

Outdoor pollen exposure looks limited for most people today.

Regional allergy forecast

How Maryland regions compare today

Baltimore and Howard County

Baltimore’s urban trees and parks transition quickly into the mature suburban canopy around Columbia and Ellicott City. Maple and oak dominate spring before lawns, roadside grasses, and ragweed shape the later seasons.

MapleOakGrass pollenRagweed

Index: 2
Humidity: 60%
Wind: 14

Montgomery County and Frederick

Silver Spring’s inner-suburban landscape gives way to Germantown’s open development and Frederick’s wooded foothills. Elevation and spring temperature differences can shift tree flowering between these cities.

MapleOakHickoryRagweed

Index: 2
Humidity: 60%
Wind: 11

Annapolis and Southern Maryland

Annapolis is directly influenced by Chesapeake Bay winds, while Waldorf sits inland among suburban lawns and woodland. Wind direction can change whether pollen arrives from the water or vegetation-rich land.

OakGrass pollenRagweedOutdoor mold

Index: 1
Humidity: 67%
Wind: 12

State-specific pollen calendar

When major allergens are active in Maryland

First tree pollen

Late February to March

FebMar

Alder and maple can begin the season before many trees have visible leaves. Warm late-winter weather may move the starting date forward.

Hardwood peak

April to May

AprMay

Oak, hickory, mulberry, willow, sycamore, and other trees overlap during Maryland’s strongest period for tree pollen.

Grass peak

May to July

MayJunJul

Grass pollen begins while late trees are still active and is commonly strongest in June across lawns, parks, pastures, and roadsides.

Weeds and ragweed

August to October

AugSepOct

Ragweed, pigweed, nettle, and other weeds rise in late summer. September is often the most difficult month for weed-sensitive residents.

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 Maryland pollen dashboard

Pikesville, MD 21208

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(410) 486-2000

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Showing 6 of 15 published allergist profiles in this area.

About Pollen in Maryland

Maryland 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.

Pennsylvania pollen forecast Virginia pollen forecast District of Columbia pollen forecast Delaware pollen forecast

Maryland pollen forecast from Baltimore to surrounding regions

Maryland pollen conditions can vary between Baltimore, nearby suburbs, and more wooded or coastal areas because of elevation changes, humidity, and diverse plant life. Searchers looking for a Maryland pollen forecast often want a page that reflects how regional allergy pressure can shift over relatively short distances.

Tree pollen commonly drives spring symptoms in Maryland, followed by grasses and later seasonal weeds. Rainfall, humidity, and urban tree cover can all influence daily pollen exposure, which makes city-level forecasts more useful than a broad statewide average alone.

Frequently asked questions about Maryland pollen forecasts

How can Maryland pollen rise before nearby trees appear to bloom?

Pollen measured in a city does not come only from the nearest plants. Lightweight grains can travel long distances on regional winds, so a forecast may rise before the same tree species visibly flowers in your neighbourhood.

Why is April often so difficult for Maryland allergies?

April brings overlapping pollen from oak, hickory, mulberry, willow, and other hardwood trees. Several warm, dry days can cause multiple species to release pollen within the same short period.

Why can a modest ragweed count cause strong symptoms?

Ragweed pollen is highly allergenic, and Maryland health guidance notes that fewer ragweed grains may be needed to provoke a respiratory reaction than tree pollen. Individual sensitivity still determines how strongly someone responds.

Why might Frederick and Annapolis peak at different times?

Frederick sits farther inland near higher terrain, while Annapolis is moderated by the Chesapeake Bay. Differences in overnight temperature, wind direction, rainfall, and vegetation affect when pollen is released and where it travels.