On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Erika dissipates, Eastern Pacific tropics remain active

Erika has dissipated as a tropical cyclone and the National Hurricane Center has discontinued advisories for the system. The remnants of Erika could still produce rainfall amounts of 3 to 5 inches or more, along with gusty winds, across southern and central Florida beginning on Sunday. Meanwhile, the Eastern Pacific remains active, with advisories continuing to be issued for Jimena and Ignacio.
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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

80°F

27°C

Humidity 62%
Wind Speed S 5 mph
Barometer 29.99 in (1015.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 29 Aug 3:53 pm CDT
Extended Forecast for

Arnold MO

  • This
    Afternoon

    This Afternoon: Isolated showers and thunderstorms.  Cloudy, with a high near 85. South wind around 6 mph.  Chance of precipitation is 20%.

    Isolated
    T-storms

    High: 85 °F

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 66. Light south wind.  Chance of precipitation is 30%.

    Scattered
    T-storms

    Low: 66 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.

    Chance
    T-storms

    High: 88 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 68. Light southeast wind.

    Slight Chance
    T-storms

    Low: 68 °F

  • Monday

    Monday: Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.

    Mostly Sunny

    High: 89 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 68.

    Partly Cloudy

    Low: 68 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    Mostly Sunny

    High: 90 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Partly Cloudy

    Low: 68 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90.

    Mostly Sunny

    High: 90 °F

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Cloudy, with a high near 85. South wind around 6 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 66. Light south wind. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. Light southeast wind.
Monday
Mostly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Mostly sunny, with a high near 89.
  Click Map For Forecast
Point Forecast:
Arnold MO
 38.45°N 90.38°W (Elev. 499 ft)
3:25 pm CDT Aug 29, 2015
4pm CDT Aug 29, 2015-6pm CDT Sep 5, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database