Hazardous Weather Conditions
Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Fair
82°F
28°C
| Humidity | 74% |
| Wind Speed | W 3 mph |
| Barometer | 29.96 in (1013.6 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 17 Aug 6:54 pm CDT |
Extended Forecast for
4 Miles SW Maryland Heights MO
Heat Advisory August 17, 07:34pm until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Tonight
Low: 79 °F
Partly Cloudy
Monday
High: 97 °F
Mostly Sunny
then Chance
T-stormsMonday Night
Low: 77 °F
Chance
T-stormsTuesday
High: 93 °F
Chance
T-stormsTuesday Night
Low: 73 °F
Chance
T-storms then
Chance
ShowersWednesday
High: 85 °F
Slight Chance
T-stormsWednesday Night
Low: 68 °F
Partly Cloudy
Thursday
High: 85 °F
Mostly Sunny
Detailed Forecast
Tonight
Partly cloudy, with a low around 79. Southeast wind 3 to 6 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. South wind 3 to 6 mph.
Monday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening. 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 102. Calm 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 around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 85.
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 82.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SW Maryland Heights MO
38.69°N 90.51°W (Elev. 446 ft)
38.69°N 90.51°W (Elev. 446 ft)
5:31 pm CDT Aug 17, 2025
7pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
