Today | Weather | Friday, September 11, 2026

Weather in Baltimore, Maryland

02:53 AM
Now
Stormy Weather
77° F
Feels Like 75°
Precipitation 71 %
Wind 6 mph
Humidity 76 %
Today
Cloudy Weather
Day 81°
Night 70°
Precipitation 55 %
Wind 6 mph
UV Index (0 - 11+) 4

Baltimore Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 11, 2025)
Cloudy Night

Day

79°

Night

55°

Wind

5 mph

Precipitation

1 %

Air Quality in Baltimore

NOW
17 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 4.12 µg/m³
PM10 4.52 µg/m³
O3 0.007 ppm
NO2 2 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 0.22 µg/m³
NO 0.01 µg/m³
PM2.5 – 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)
PM2.54.12 µg/m³
PM104.52 µg/m³
O314.05 µg/m³
NO23.73 µg/m³
SO20.32 µg/m³
CO146.78 µg/m³
NH30.22 µg/m³
NO0.01 µg/m³