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.

Afternoon and Evening Showers and Thunderstorms Continue Across Much of the Southwest

An active monsoon weather pattern will continue through Saturday across much of the southwestern U.S. Scattered afternoon and evening showers and thunderstorms will bring locally excessive rainfall. Flash Flood Watches remain in effect for parts of the region. Some normally dry washes may have rapidly flowing water. Remember when encountering flooded roads: Turn around, don't drown!
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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

86°F

30°C

Humidity 39%
Wind Speed W 5 mph
Barometer 30.00 in (1015.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 31 Jul 7:53 pm CDT
Extended Forecast for

Arnold MO

  • Tonight

    Tonight: Mostly clear, with a low around 66. Calm wind.

    Mostly Clear

    Low: 66 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 93. Calm wind becoming southeast around 6 mph in the morning.

    Mostly Sunny

    High: 93 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 69. Light and variable wind.

    Partly Cloudy

    Low: 69 °F

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 94. Light southwest wind becoming west 5 to 9 mph in the morning.

    Slight Chance
    T-storms

    High: 94 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 71. Southwest wind 5 to 7 mph.

    Partly Cloudy

    Low: 71 °F

  • Monday

    Monday: Sunny, with a high near 93.

    Sunny

    High: 93 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 71.

    Partly Cloudy

    Low: 71 °F

  • Tuesday

    Tuesday: A 20 percent chance of showers.  Mostly sunny, with a high near 91.

    Slight Chance
    Showers

    High: 91 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71.

    Chance
    T-storms

    Low: 71 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 93. Calm wind becoming southeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 69. Light and variable wind.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Light southwest wind becoming west 5 to 9 mph in the morning.
Sunday Night
Partly cloudy, with a low around 71. Southwest wind 5 to 7 mph.
Monday
Sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 91.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
  Click Map For Forecast
Point Forecast:
Arnold MO
 38.45°N 90.38°W (Elev. 499 ft)
7:41 pm CDT Jul 31, 2015
8pm CDT Jul 31, 2015-6pm CDT Aug 7, 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