


Hazardous Weather Conditions
Current conditions at
St. Louis, Spirit Of St. Louis Airport (KSUS)
Lat: 38.66°NLon: 90.66°WElev: 463ft.
Fair
88°F
31°C
Humidity | 61% |
Wind Speed | Vrbl 3 mph |
Barometer | 29.91 in (1011.9 mb) |
Dewpoint | 73°F (23°C) |
Visibility | 10.00 mi |
Heat Index | 96°F (36°C) |
Last update | 12 Aug 2:54 pm CDT |
Extended Forecast for
Chesterfield MO
This Afternoon
High: 90 °F
Chance
T-stormsTonight
Low: 71 °F
Chance
T-storms then
Mostly ClearWednesday
High: 87 °F
Mostly Sunny
Wednesday Night
Low: 68 °F
Partly Cloudy
Thursday
High: 88 °F
Sunny
Thursday Night
Low: 70 °F
Mostly Clear
Friday
High: 95 °F
Sunny
Friday Night
Low: 75 °F
Mostly Clear
Saturday
High: 97 °F
Hot
Detailed Forecast
This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. West wind around 7 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 87. North wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 68. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88. Light northeast wind.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Partly cloudy, with a low around 76.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Chesterfield MO
38.65°N 90.57°W (Elev. 512 ft)
38.65°N 90.57°W (Elev. 512 ft)
2:36 pm CDT Aug 12, 2025
3pm CDT Aug 12, 2025-6pm CDT Aug 19, 2025