Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
74°F
23°C
| Humidity | 34% |
| Wind Speed | E 8 mph |
| Barometer | 30.28 in (1025.2 mb) |
| Dewpoint | 44°F (7°C) |
| Visibility | 10.00 mi |
| Last update | 5 Oct 11:53 am CDT |
Extended Forecast for
Arnold MO
This Afternoon
High: 78 °F
Sunny
Tonight
Low: 48 °F
Clear
Tuesday
High: 81 °F
Sunny
Tuesday Night
Low: 56 °F
Clear
Wednesday
High: 87 °F
Sunny
Wednesday Night
Low: 58 °F
Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 58 °F
Mostly Clear
Friday
High: 84 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 78. Northeast wind around 6 mph.
Tonight
Clear, with a low around 48. Light and variable wind.
Tuesday
Sunny, with a high near 81. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
Clear, with a low around 56. Light and variable wind becoming south around 5 mph.
Wednesday
Sunny, with a high near 87. West wind 3 to 6 mph.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 86.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Arnold MO
38.42°N 90.35°W (Elev. 400 ft)
38.42°N 90.35°W (Elev. 400 ft)
12:11 pm CDT Oct 5, 2026
12pm CDT Oct 5, 2026-6pm CDT Oct 11, 2026
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