Heat Advisory HEAT ADVISORY - Saint Louis City  - Saint Louis County

NWS North Mississippi Valley Regional Radar WU Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 16-Aug-2025 5:05am - next update at 5:10am  
Summary / Temperature Wind Rain Outlook
mostly clear mostly clear
Currently: 82.2, Max: 86.5, Min: 81.7 82.2°F
Colder 0.5°F than last hour.

Warm

Feels like: 87.6°F

24-hr difference
4.3°FWarmer 4.3°F than yesterday at this time.
  Today Yesterday
High: 86.5°F
12:17am
99.5°F
4:17pm
Low: 81.7°F
4:49am
76.5°F
6:23am
 Calm NNE
0
Gust:
0 mph
0 Bft - Calm
Today: 0 mph 12:43pm
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.
Saturday

Saturday: Sunny
Sunny
Humidity & Barometer Almanac Moon
Humidity: 73 % Increased 2.0% since last hour.
Dew Point: 72.7°F Increased 0.3°F since last hour.
Barometer: 30.082 inHg  
Baro Trend: Steady
Sunrise: 6:16am
Sunset: 7:54pm
Moonset: 2:36pm
Moonrise: 11:24pm
Waning Crescent
Waning Crescent, Moon at 22 days in cycle
48%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 0.0 @ 12:00am
0 W/m2 (0 %)
High: 0 @  12:00am
 NWS Weather Forecast  - Outlook: Overnight & Saturday
Overnight

Overnight: Mostly Clear
Mostly Clear

Lo 78 °F
NWS forecast: Mostly clear, with a low around 78. South wind around 3 mph.
 
Saturday

Saturday: Sunny
Sunny

Hi 98 °F
NWS forecast: Sunny, with a high near 98. Heat index values as high as 106. South wind around 6 mph.