Today | Weather | Wednesday, July 15, 2026

Active Weather Warnings

Air Quality Alert

Weather in Baltimore, Maryland

09:46 PM

Now

88° F

Feels Like 91°

Precipitation 0 %

Wind 7 mph

Humidity 63 %

Today

Day 99°

Night 75°

Precipitation 0 %

Wind 6 mph

Baltimore Weather Forecast Updated

1 minute ago

Last updated on July 15, 2026 at 9:44 PM

Weather Forecast History

Last Year's Weather on This Day (July 15, 2025)

Day

93°

Night

73°

Wind

4 mph

UV Index

Precipitation

43 %

Air Quality in Baltimore

NOW

42 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 10.17 µg/m³

PM₁₀ 11.53 µg/m³

O₃ 0.040 ppm

NO₂ 2.6 ppb

SO₂ 0.5 ppb

CO 0.12 ppm

NH₃ 0.82 µg/m³

NO 0 µg/m³

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

NH₃ – Ammonia

NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 10.17 µg/m³

PM₁₀ – 11.53 µg/m³

O₃ – 78.58 µg/m³

NO₂ – 4.83 µg/m³

SO₂ – 1.33 µg/m³

CO – 138.39 µg/m³

NH₃ – 0.82 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Baltimore

Air Quality Alert

Air Quality Alert issued July 14 at 4:40PM EDT by NWS Baltimore MD/Washington DC

Jul 14, 4:40 PM → Jul 16, 12:00 AM

The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Wednesday for
the Baltimore City Metro and Annapolis region.

A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone
and fine particles visit the web site
mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx

Updated: Jul 15, 9:44 PM Source: NWS Alert