Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
A Few Clouds
72°F
22°C
| Humidity | 76% |
| Wind Speed | SW 10 G 20 mph |
| Barometer | 29.72 in (1005.9 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 10 Mar 11:53 pm CDT |
Extended Forecast for
4 Miles NW Arnold MO
Overnight
Low: 54 °F
T-storms
Wednesday
High: 69 °F⇓
T-storms then
Rain LikelyWednesday Night
Low: 31 °F
Gradual
ClearingThursday
High: 57 °F
Sunny
Thursday Night
Low: 45 °F
Mostly Cloudy
Friday
High: 64 °F
Partly Sunny
Friday Night
Low: 38 °F
Mostly Cloudy
Saturday
High: 70 °F
Mostly Sunny
Saturday Night
Low: 51 °F
Partly Cloudy
then Slight
Chance
T-storms
Detailed Forecast
Overnight
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 5am. Low around 54. Southwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Wednesday
Rain and thunderstorms before 3pm, then a slight chance of rain between 3pm and 4pm. Temperature falling to around 48 by 4pm. Southwest wind 9 to 16 mph becoming northwest in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 31. Northwest wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 26 mph.
Thursday
Sunny, with a high near 57. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 45. South wind 6 to 14 mph, with gusts as high as 28 mph.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 51.
Sunday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 45.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles NW Arnold MO
38.47°N 90.41°W (Elev. 397 ft)
38.47°N 90.41°W (Elev. 397 ft)
12:11 am CDT Mar 11, 2026
12am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
