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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

59°F

15°C

Humidity 93%
Wind Speed SE 8 mph
Barometer 29.83 in (1009.9 mb)
Dewpoint 57°F (14°C)
Visibility 8.00 mi
Last update 2 Apr 2:53 am CDT
Extended Forecast for

2 Miles WNW Arnold MO

  • Overnight

    Overnight: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. South wind 14 to 18 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.

    High: 79 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 64. South wind 6 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 58. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    Low: 58 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. South wind 14 to 18 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 64. South wind 6 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Friday
Showers likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. South wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
Showers and possibly a thunderstorm. Low around 58. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 60. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 67.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Arnold MO
 38.45°N 90.41°W (Elev. 499 ft)
Last Update:
1:26 am CDT Apr 2, 2026
Forecast Valid:
3am CDT Apr 2, 2026-6pm CDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation