St. Louis Weather Outlook & Summary
St. Louis is currently 33°C with partly sunny. Today's temperatures are expected between 21°C and 33°C. There is a 61% chance of precipitation (1.0 mm).
Hourly Forecast (24 Hours)
Scroll horizontally →7-Day Extended Forecast
Daily Highs & LowsToday
09-20
Partly Sunny
21°
33°
61%
10 km/h
Mon
09-21
Chance Showers And Thunderstorms then Mostly Cloudy
17°
24°
39%
10 km/h
Tue
09-22
Partly Sunny
13°
23°
6%
10 km/h
Wed
09-23
Mostly Sunny
13°
24°
0%
10 km/h
Thu
09-24
Mostly Sunny
14°
24°
1%
10 km/h
Fri
09-25
Partly Sunny
15°
26°
15%
10 km/h
Sat
09-26
Slight Chance Rain Showers
16°
26°
17%
10 km/h
Comprehensive Weather Metrics
RealFeel® Temperature
34°
Feels close to actual air temperature
Humidity & Dew Point
42%
Relative atmospheric moisture level
Wind & Gusts
10 km/h
W (270°)
Atmospheric Pressure
1013 hPa
Low pressure system
UV Index
5 (Moderate)
Minimal UV solar hazard
Cloud Cover
15%
Clear blue skies
Precipitation (Last Hr)
0.3 mm
Active rainfall recorded
Visibility
> 10 km
Horizontal optical clarity
Air Quality Index
Standard: US EPA AQI51Moderate
Air quality is acceptable; however, some pollutants may pose a moderate health concern for a very small number of unusually sensitive individuals.
Health Advisory
Unusually sensitive people should consider reducing prolonged outdoor exertion.
*General public health guidance based on ambient atmospheric concentration. Not medical advice.
Pollutant Concentrations (µg/m³)
PM2.5 (Fine)
5.5
PM10 (Coarse)
5.8
Ozone (O₃)
145
Nitrogen (NO₂)
1.8
Sulphur (SO₂)
2.4
Carbon (CO)
144
Sun & Daylight
Sun is currently above the horizon
Sunrise
6:46 AM
Sunset
7:01 PM
St. Louis Weather Radar & Map
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