Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Arnold MO

Severe T-storm Watch March 7, 02:47am until March 7, 06:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch March 7, 02:47am until March 7, 06:00am

    NOW until 6:00am Sat

    Severe T-storm Watch

  • Overnight

    Low: 60 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: Showers, mainly before 8am.  Temperature rising to near 66 by 10am, then falling to around 56 during the remainder of the day. Southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 100%.

    High: 66 °F

    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 37 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 68. Calm wind becoming southwest around 6 mph in the morning.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 48. South wind 3 to 6 mph.

    Low: 48 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain and thunderstorms after midnight.  Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Chance
    T-storms then
    Rain Likely

Detailed Forecast

Overnight
Rain and possibly a thunderstorm. Some of the storms could be severe and produce heavy rainfall. Low around 60. South wind 7 to 11 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.
Saturday
Showers, mainly before 8am. Temperature rising to near 66 by 10am, then falling to around 56 during the remainder of the day. Southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.
Saturday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 37. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 68. Calm wind becoming southwest around 6 mph in the morning.
Sunday Night
Clear, with a low around 48. South wind 3 to 6 mph.
Monday
Sunny, with a high near 80.
Monday Night
A 30 percent chance of rain and thunderstorms after midnight. Mostly clear, with a low around 59.
Tuesday
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before noon, then a chance of rain. High near 66. Chance of precipitation is 90%.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
Arnold MO
 38.4°N 90.38°W (Elev. 495 ft)
2:21 am CST Mar 7, 2026
2am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
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Additional Resources

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