Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
73°F
23°C
| Humidity | 94% |
| Wind Speed | S 5 mph |
| Barometer | 30.07 in (1017.8 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 16 Aug 4:53 am CDT |
Extended Forecast for
Arnold MO
Heat Advisory August 16, 05:19am until August 18, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Today
High: 98 °F
Hot
Tonight
Low: 75 °F
Mostly Clear
Sunday
High: 100 °F
Hot
Sunday Night
Low: 76 °F
Mostly Clear
Monday
High: 100 °F
Hot
Monday Night
Low: 76 °F
Mostly Clear
Tuesday
High: 99 °F
Sunny then
Slight Chance
T-stormsTuesday Night
Low: 73 °F
Chance
T-storms
Detailed Forecast
Today
Sunny and hot, with a high near 98. Heat index values as high as 106. South wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 75. Calm wind.
Sunday
Sunny and hot, with a high near 100. Heat index values as high as 110. Calm wind.
Sunday Night
Mostly clear, with a low around 76. Calm wind.
Monday
Sunny and hot, with a high near 100. Light south wind.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 89.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Arnold MO
38.45°N 90.38°W (Elev. 499 ft)
38.45°N 90.38°W (Elev. 499 ft)
4:16 am CDT Aug 16, 2025
5am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
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