Today | Weather | Tuesday, April 7, 2026

Weather in St. Joseph, Missouri

10:27 AM
Now
Cloudy Weather
43° F
Feels Like 34°
Precipitation 7 %
Wind 14 mph
UV Index (0 - 11+) 1
Humidity 65 %
Today
Cloudy Weather
Day 57°
Night 48°
Precipitation 25 %
Wind 15 mph
UV Index (0 - 11+) 2

St. Joseph Weather Forecast Updated

Last updated on

Air Quality in St. Joseph

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.77 µg/m³
PM10 2.1 µg/m³
O3 0.046 ppm
NO2 1.5 ppb
SO2 0.6 ppb
CO 0.13 ppm
NH3 3.96 µg/m³
NO 0.4 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)
PM2.51.77 µg/m³
PM102.1 µg/m³
O389.49 µg/m³
NO22.89 µg/m³
SO21.61 µg/m³
CO153.28 µg/m³
NH33.96 µg/m³
NO0.4 µg/m³