Heavy Rain and Flash Flooding Possible Over Parts of the Eastern United States

Heavy rainfall is expected over portions of the eastern United States through Thursday. Flooding and flash flooding will be possible in some areas. Click the "Read More" link for excessive rainfall forecasts from the Weather Prediction Center. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

55°F

13°C

Humidity 77%
Wind Speed NW 10 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 29 Sep 3:53 am CDT
Extended Forecast for

Arnold MO

  • Today

    Today: A 20 percent chance of showers after 1pm.  Partly sunny, with a high near 69. North wind 7 to 15 mph.

    Partly Sunny
    then Slight
    Chance
    Showers

    High: 69 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. North wind 7 to 9 mph.

    Mostly Cloudy

    Low: 55 °F

  • Friday

    Friday: A 30 percent chance of showers, mainly after 1pm.  Mostly cloudy, with a high near 69. Northwest wind 7 to 11 mph.

    Chance
    Showers

    High: 69 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 56. Northwest wind 5 to 8 mph.

    Slight Chance
    Showers

    Low: 56 °F

  • Saturday

    Saturday: Mostly cloudy, with a high near 72. Northwest wind around 6 mph.

    Mostly Cloudy

    High: 72 °F

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 56.

    Mostly Cloudy

    Low: 56 °F

  • Sunday

    Sunday: Partly sunny, with a high near 75.

    Partly Sunny

    High: 75 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 55.

    Partly Cloudy

    Low: 55 °F

  • Monday

    Monday: Mostly sunny, with a high near 77.

    Mostly Sunny

    High: 77 °F

Detailed Forecast

Today
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 69. North wind 7 to 15 mph.
Tonight
Mostly cloudy, with a low around 55. North wind 7 to 9 mph.
Friday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 69. Northwest wind 7 to 11 mph.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 56. Northwest wind 5 to 8 mph.
Saturday
Mostly cloudy, with a high near 72. Northwest wind around 6 mph.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Partly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Click Map For Forecast
Point Forecast:
Arnold MO
 38.45°N 90.38°W (Elev. 499 ft)
2:27 am CDT Sep 29, 2016
4am CDT Sep 29, 2016-6pm CDT Oct 5, 2016
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database