


Hazardous Weather Conditions
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Overcast
81°F
27°C
Humidity | 85% |
Wind Speed | Vrbl 5 mph |
Barometer | 30.03 in (1015.4 mb) |
Dewpoint | 76°F (24°C) |
Visibility | 10.00 mi |
Heat Index | 87°F (31°C) |
Last update | 19 Jul 10:51 am CDT |
Extended Forecast for
Saint Louis MO
Extreme Heat Warning July 19, 12:00pm until July 24, 07:00pm
Today
High: 95 °F
Chance
T-stormsTonight
Low: 78 °F
Partly Cloudy
Sunday
High: 98 °F
Hot
Sunday Night
Low: 77 °F
Chance
T-stormsMonday
High: 94 °F
Slight Chance
T-stormsMonday Night
Low: 76 °F
Partly Cloudy
Tuesday
High: 96 °F
Mostly Sunny
Tuesday Night
Low: 78 °F
Mostly Clear
Wednesday
High: 99 °F
Hot
Detailed Forecast
Today
A 40 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 95. Heat index values as high as 106. Southwest wind around 7 mph.
Tonight
Partly cloudy, with a low around 78. Southwest wind around 6 mph.
Sunday
Mostly sunny and hot, with a high near 98. Heat index values as high as 109. West wind around 6 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Northeast wind around 5 mph becoming light and variable in the evening.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94. South wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
Mostly sunny, with a high near 96.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 79.
Friday
Sunny and hot, with a high near 99.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Saint Louis MO
38.62°N 90.23°W (Elev. 489 ft)
38.62°N 90.23°W (Elev. 489 ft)
9:21 am CDT Jul 19, 2025
11am CDT Jul 19, 2025-6pm CDT Jul 25, 2025