Today | Weather | Tuesday, October 21, 2025

Weather in Baltimore, Maryland

10:08 PM
Now
Rainy Weather
63° F
Feels Like 59°
Precipitation 46 %
Wind 6 mph
Humidity 75 %
Today
Rainy Night
Day 72°
Night 52°
Precipitation 87 %
Wind 6 mph

Baltimore Weather Forecast Updated

12 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (October 21, 2024)

Night

Day

82°

Night

46°

Wind

4 mph

Precipitation

2

Air Quality in Baltimore

NOW
41 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.58 µg/m³
PM10 8.35 µg/m³
O3 0.044 ppm
NO2 2.3 ppb
SO2 1 ppb
CO 0.12 ppm
NH3 1.28 µg/m³
NO 0 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)
PM2.57.58 µg/m³
PM108.35 µg/m³
O386.81 µg/m³
NO24.41 µg/m³
SO22.53 µg/m³
CO141.9 µg/m³
NH31.28 µg/m³
NO0 µg/m³