Today | Weather | Tuesday, September 15, 2026

Weather in Columbia, South Carolina

05:10 AM
Now
Cloudy Night
75° F
Feels Like 79°
Precipitation 0 %
Wind 6 mph
Humidity 85 %
Today
Cloudy Weather
Day 90°
Night 64°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 7

Columbia Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 15, 2025)
Cloudy Night

Day

86°

Night

57°

Wind

5 mph

Precipitation

5 %

Air Quality in Columbia

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

Pollutant Concentrations:

PM2.5 5.15 µg/m³
PM10 6.18 µg/m³
O3 0.011 ppm
NO2 1.3 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.22 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)
PM2.55.15 µg/m³
PM106.18 µg/m³
O321.54 µg/m³
NO22.39 µg/m³
SO20.14 µg/m³
CO130.4 µg/m³
NH30.22 µg/m³
NO0 µg/m³