Hazardous Weather Conditions
Current conditions at
St. Louis Lambert International Airport (KSTL)
Lat: 38.75°NLon: 90.37°WElev: 604ft.
Mostly Cloudy
81°F
27°C
| Humidity | 85% |
| Wind Speed | E 3 mph |
| Barometer | 30.01 in (1014.6 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 17 Aug 9:51 pm CDT |
Extended Forecast for
2 Miles SW Saint Ann MO
Heat Advisory August 17, 10:04pm until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Tonight
Low: 81 °F
Partly Cloudy
Monday
High: 97 °F
Mostly Sunny
then Chance
T-stormsMonday Night
Low: 77 °F
Chance
T-stormsTuesday
High: 93 °F
Chance
Showers then
Chance
T-stormsTuesday Night
Low: 73 °F
Chance
T-storms then
Chance
ShowersWednesday
High: 86 °F
Slight Chance
T-stormsWednesday Night
Low: 68 °F
Partly Cloudy
Thursday
High: 84 °F
Mostly Sunny
Detailed Forecast
Tonight
Partly cloudy, with a low around 81. Southeast wind 3 to 5 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 105. Southeast wind 3 to 6 mph.
Monday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 101. Light and variable wind becoming west around 6 mph in the morning.
Tuesday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 73. North wind 3 to 5 mph. Chance of precipitation is 40%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 86. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SW Saint Ann MO
38.69°N 90.4°W (Elev. 636 ft)
38.69°N 90.4°W (Elev. 636 ft)
8:56 pm CDT Aug 17, 2025
10pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
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