Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
56°F
13°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 30.19 in (1022.2 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 15 Oct 6:53 am CDT |
Extended Forecast for
Arnold MO
Today
High: 85 °F
Sunny
Tonight
Low: 58 °F
Clear
Thursday
High: 82 °F
Sunny
Thursday Night
Low: 58 °F
Increasing
CloudsFriday
High: 83 °F
Partly Sunny
Friday Night
Low: 62 °F
Mostly Clear
then Chance
T-stormsSaturday
High: 76 °F
Showers
Saturday Night
Low: 48 °F
Showers
LikelySunday
High: 67 °F
Slight Chance
Showers
Detailed Forecast
Today
Sunny, with a high near 85. Light and variable wind.
Tonight
Clear, with a low around 58. Calm wind.
Thursday
Sunny, with a high near 82. Calm wind becoming southeast 5 to 8 mph in the morning.
Thursday Night
Increasing clouds, with a low around 58. Southeast wind around 6 mph.
Friday
Partly sunny, with a high near 83. Southeast wind 5 to 9 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62.
Saturday
Showers and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.
Saturday Night
Showers likely, mainly before 1am. Partly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers before 1pm. Sunny, with a high near 67.
Sunday Night
Clear, with a low around 43.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 51.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 76.
Additional Forecasts and Information
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Point Forecast:
Arnold MO
38.4°N 90.38°W (Elev. 495 ft)
38.4°N 90.38°W (Elev. 495 ft)
4:16 am CDT Oct 15, 2025
7am CDT Oct 15, 2025-6pm CDT Oct 21, 2025
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