Today | Weather | Thursday, December 4, 2025

Weather in St. Joseph, Missouri

04:04 AM
Now
Cloudy Night
12° F
Feels Like
Precipitation 0 %
Wind 8 mph
Humidity 74 %
Today
Cloudy Weather
Day 28°
Night 19°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 2

St. Joseph Weather Forecast Updated

9 minutes ago
Last updated on

Air Quality in St. Joseph

NOW
31 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.89 µg/m³
PM10 2.18 µg/m³
O3 0.034 ppm
NO2 2.1 ppb
SO2 0.8 ppb
CO 0.14 ppm
NH3 0.6 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)
PM2.51.89 µg/m³
PM102.18 µg/m³
O366.55 µg/m³
NO23.97 µg/m³
SO22.17 µg/m³
CO162.17 µg/m³
NH30.6 µg/m³
NO0 µg/m³