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Saint Louis City
 Details for Saint Louis City Heat Advisory  +1 additional alert
USA Weather Finder
Heat Advisory HEAT ADVISORY - Saint Louis City  - Saint Louis County

Regional Radar Regional Visible Satellite
Radar/Satellite images courtesy of Weather Underground.
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Updated: @ 16-Aug-2025 2:45pm - next update at 2:50pm  
Summary / Temperature Wind Rain Outlook
Mostly cloudy Mostly cloudy
Currently: 85.1, Max: 86.5, Min: 79.5 85.1°F
 

Warm

Feels like: 93.3°F

24-hr difference
-9.2°FColder 9.2°F than yesterday at this time.
  Today Yesterday
High: 86.5°F
12:17am 		99.5°F
4:17pm
Low: 79.5°F
6:27am 		76.5°F
6:23am
Wind from NE NE
0.5
Gust:
 0 mph
0 Bft - Calm
Today: 10.8 mph 10:57am
Gust Month: 67.6 mph August 8
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0.19 in
Season Total: 34.89 in
2 rain days in August.
Tonight

Tonight: Isolated Showers And Thunderstorms then Partly Cloudy
Isolated Showers And T-Storms then Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 71 %  
Dew Point: 74.6°F  
Barometer: 30.056 inHg Falling 0.01 inHg/hr
Baro Trend: Falling slowly
Sunrise: 6:16am
Sunset: 7:54pm
Moonset: 2:36pm
Moonrise: 11:24pm
Waning Crescent
Waning Crescent, Moon at 22 days in cycle
43%
Illuminated
UV Index Solar Radiation
   2.0     Low 
High: 5.9 @ 12:52pm
174 W/m2 (100 %)
High: 850 @  12:57pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Isolated Showers And Thunderstorms
Isolated Showers And T-Storms

Hi 97 °F		 NWS forecast: Isolated rain showers before 3pm, then isolated showers and thunderstorms. Mostly sunny, with a high near 97. Heat index values as high as 104. South wind 2 to 6 mph. Chance of precipitation is 20%.
 
Tonight

Tonight: Isolated Showers And Thunderstorms then Partly Cloudy
Isolated Showers And T-Storms then Partly Cloudy

Lo 79 °F		 NWS forecast: Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 79. Heat index values as high as 103. South wind around 5 mph. Chance of precipitation is 20%.