WWAI

St. Louis Rain & Precipitation

United States · Thursday, March 12, 2026

AmericasMetricAmerica/ChicagoPop. 2.8M
Current Weather & ForecastUpdated 11:13:37 AM
☀️
1°C
Clear Sky
High12°C/Low1°C
Feels -3°C
74% Humidity
10 km/h NW
☀️UV 0 (Low)
☁️0% Cloud
💧
Precipitation
0.0 mm
🌧️
Rain Chance
1%
💨
Max Wind
21 km/h
🌀
Wind Gust
22 km/h
🌅
Sunrise
07:16
🌇
Sunset
19:04
Today's Hourly Breakdown
Actual
Forecast
Now
Times in CDT
🌡️Temperature (°C)
🌧️Precipitation (mm) & Chance (%)
💨Wind Speed & Gusts (km/h)
💧Humidity & Cloud Cover (%)
☀️UV Index
Weather Details
☀️
Clear Sky
Current condition
UV Index
0
Low
☁️
Cloud Cover
0%
Mostly Clear
Wind Direction
NW
315°
Wind Gust
22 km/h
Precipitation
0.0 mm
Max Wind Today
21 km/h
Sunrise
07:16 AM
Sunset
07:04 PM

Real-time Air Quality Index (AQI)

Live
waqi
St. Louis, United States
Last Updated: 3/12/2026, 11:13:33 AM
23AQI (US)
Air Quality is
Good
PM2.5
15ug/m3
PM10
7ug/m3
Dominant: O3
Station: Blair Street, Missouri, USA
☀️
1°C
Clear Sky
Humidity74 %
Wind Speed10 km/h
UV Index0
23
0-50
51-100
101-150
151-200
201-300
301-500+
Major Air Pollutants
PM2.5
15ug/m3
PM10
7ug/m3
O3
23.3ug/m3
NO2
4.7ug/m3
SO2
0.3ug/m3
CO
2.3ug/m3
Health Advice
Air quality is satisfactory. Enjoy outdoor activities!
Data updated 11:13:33 AM · Source: waqi
Hourly Air Pollutants
µg/m³
Health Impact & Advice
🚬
0.7cigarettes / day
Breathing this air equals smoking 0.7 cigarettes daily
Weekly: 5 cigsMonthly: 20 cigs
Source: Berkeley Earth · Based on PM2.5 = 15 ug/m3
Protective MeasuresAQI 23
🏠
Air Purifier
Not Needed
😷
N95 Mask
Not Needed
🏡
Stay Indoor
Not Needed
🪟
Windows Closed
Not Needed
🏃
Outdoor Exercise
Not Needed
🚗
Car Cabin Filter
Not Needed
Health Risk Assessment
🫁
Asthma
Low
Low risk for most people
❤️
Heart Issues
Low
Minimal risk
🤧
Allergies
Low
Low allergy aggravation risk
😮‍💨
Respiratory
Low
Normal breathing expected
👁️
Eye Irritation
Low
No issues expected
👶
Children & Elderly
Safe
Normal activities ok

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.

Rain & Precipitation in St. Louis

Precipitation and rain forecast for St. Louis. See hourly and daily rain chance for St. Louis, United States above.

  • 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.

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