Today | Weather | Wednesday, April 15, 2026

Weather in St. Joseph, Missouri

04:36 AM
Now
Cloudy Weather
68° F
Feels Like 64°
Precipitation 7 %
Wind 14 mph
Humidity 83 %
Today
Sunny with a Chance of Thunderstorms
Day 82°
Night 52°
Precipitation 55 %
Wind 18 mph
UV Index (0 - 11+) 7

St. Joseph Weather Forecast Updated

55 minutes ago
Last updated on

Air Quality in St. Joseph

NOW
26 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.66 µg/m³
PM10 0.82 µg/m³
O3 0.028 ppm
NO2 0.8 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0.9 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)
PM2.50.66 µg/m³
PM100.82 µg/m³
O354.85 µg/m³
NO21.47 µg/m³
SO20.4 µg/m³
CO121.38 µg/m³
NH30.9 µg/m³
NO0 µg/m³