St. Louis Weather Outlook & Summary
St. Louis is currently 21°C with clear. Today's temperatures are expected between 15°C and 29°C. Dry conditions are expected throughout the day.
Hourly Forecast (24 Hours)
Scroll horizontally →7-Day Extended Forecast
Daily Highs & LowsToday
10-08
Clear
15°
29°
1%
5 km/h
Fri
10-09
Sunny
18°
32°
0%
5 km/h
Sat
10-10
Mostly Sunny
16°
31°
25%
5 km/h
Sun
10-11
Slight Chance Light Rain then Partly Sunny
16°
27°
19%
5 km/h
Mon
10-12
Sunny
16°
33°
8%
5 km/h
Tue
10-13
Sunny
12°
24°
14%
5 km/h
Wed
10-14
Slight Chance Rain Showers
23°
23°
23%
5 km/h
Comprehensive Weather Metrics
RealFeel® Temperature
21°
Feels close to actual air temperature
Humidity & Dew Point
61%
Relative atmospheric moisture level
Wind & Gusts
5 km/h
N (0°)
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 mm
No recent liquid accumulation
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)
8.7
PM10 (Coarse)
9.5
Ozone (O₃)
51
Nitrogen (NO₂)
11.5
Sulphur (SO₂)
1.1
Carbon (CO)
173
Sun & Daylight
Night time (sun below horizon)
Sunrise
7:02 AM
Sunset
6:33 PM
St. Louis Weather Radar & Map
Expand Full Map → Loading interactive weather map...