Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
75°F
24°C
| Humidity | 60% |
| Wind Speed | N 5 mph |
| Barometer | 30.04 in (1017.0 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 3 Aug 7:53 pm CDT |
Extended Forecast for
Arnold MO
Tonight
Low: 63 °F
Mostly Cloudy
Monday
High: 84 °F
Partly Sunny
then Slight
Chance
T-stormsMonday Night
Low: 67 °F
Partly Cloudy
then Patchy
FogTuesday
High: 86 °F
Patchy Fog
then Slight
Chance
T-stormsTuesday Night
Low: 68 °F
Mostly Clear
Wednesday
High: 89 °F
Sunny
Wednesday Night
Low: 68 °F
Mostly Clear
Thursday
High: 91 °F
Sunny
Thursday Night
Low: 70 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 63. Light north wind.
Monday
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 84. Calm wind becoming northeast around 6 mph in the afternoon.
Monday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 67. Light east wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Light east wind.
Tuesday Night
Mostly clear, with a low around 68. Light east wind.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Sunny, with a high near 94.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Arnold MO
38.42°N 90.38°W (Elev. 495 ft)
38.42°N 90.38°W (Elev. 495 ft)
6:06 pm CDT Aug 3, 2025
7pm CDT Aug 3, 2025-6pm CDT Aug 10, 2025
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