St. Louis Weather Tomorrow
United States · Thursday, March 12, 2026
Real-time Air Quality Index (AQI)
St. Louis Weather & Air Quality Overview
St. Louis is a city in United States, located in the Northern Hemisphere at coordinates 38.63°N, 90.20°W. With a population of approximately 2.8 million, it is one of the notable urban centers in Americas. St. Louis experiences a temperate climate. This page provides real-time temperature, humidity, wind speed, UV index, air quality monitoring, and a detailed 10-day weather forecast for St. Louis, United States.
Right now in St. Louis, the temperature is 1°C (feels like -3°C) with clear sky. Humidity is at 74%. Winds are blowing at 10 km/h. Today's high is expected to reach 12°C and the low will be around 1°C.
The current Air Quality Index (AQI) in St. Louis is 23, rated as Good. The dominant pollutant is O3.
Weather in St. Louis Tomorrow
Tomorrow's weather in St. Louis will see a high of 14°C and a low of 5°C. Check the hourly forecast for St. Louis for more detail.
- Today's high in St. Louis: 12°C
- Humidity in St. Louis: 74%
- Current AQI in St. Louis: 23 (Good)
- Wind in St. Louis: 10 km/h
Weather in St. Louis and the St. Louis forecast are updated every few minutes. For more cities, see our weather directory and global AQI map, or check city AQI rankings and weather guides.
Data updates every few minutes. Weather powered by Open-Meteo. Air quality from multiple monitoring networks.