Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Overcast
62°F
17°C
| Humidity | 93% |
| Wind Speed | S 8 mph |
| Barometer | 29.77 in (1008.1 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 27 Dec 8:53 pm CST |
Extended Forecast for
Arnold MO
Tonight
Low: 58 °F
Patchy Fog
then Mostly
CloudySunday
High: 69 °F⇓
Slight Chance
Showers then
Showers and
BreezySunday Night
Low: 18 °F
Slight Chance
Showers and
BlusteryMonday
High: 30 °F
Mostly Sunny
and Breezy
then Mostly
SunnyMonday Night
Low: 17 °F
Mostly Clear
Tuesday
High: 36 °F
Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 46 °F
Mostly Sunny
Wednesday Night
Low: 27 °F
Partly Cloudy
Detailed Forecast
Tonight
Patchy fog before midnight. Otherwise, mostly cloudy, with a low around 58. South wind 7 to 9 mph.
Sunday
Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Temperature rising to near 69 by noon, then falling to around 53 during the remainder of the day. Breezy, with a south wind 8 to 13 mph becoming west 17 to 22 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 80%.
Sunday Night
A 20 percent chance of showers before 9pm. Cloudy during the early evening, then gradual clearing, with a low around 18. Blustery, with a west wind 21 to 24 mph, with gusts as high as 38 mph.
Monday
Mostly sunny, with a high near 30. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 17. Northwest wind 8 to 11 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 27.
New Year's Day
Mostly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Mostly cloudy, with a high near 50.
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)
7:51 pm CST Dec 27, 2025
9pm CST Dec 27, 2025-6pm CST Jan 3, 2026
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