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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.

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Slight risk of severe weather on Monday

The NWS Storm Prediction Center expects a slight risk of severe weather on Monday. The area of greatest concern extends from western Maine to eastern Ohio. The main threats with these storms will be damaging winds and large hail, but an isolated tornado cannot be ruled out.
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Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

79°F

26°C

Humidity 74%
Wind Speed SW 7 mph
Barometer 29.83 in (1009.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 3 Aug 12:54 am CDT
Extended Forecast for

4 Miles NNW Mapaville MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 74. Calm wind becoming southwest around 6 mph.

    Mostly Cloudy

    Low: 74 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 91. West wind 6 to 8 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 91 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am.  Increasing clouds, with a low around 70. North wind around 5 mph becoming calm  in the evening.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    Low: 70 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 88. Southeast wind 3 to 5 mph.

    Chance
    T-storms

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. Northeast wind around 6 mph becoming southeast after midnight.

    Chance
    T-storms

    Low: 69 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 84. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 84 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 69.

    Chance
    T-storms

    Low: 69 °F

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 84.

    Chance
    T-storms

    High: 84 °F

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64.

    Chance
    T-storms

    Low: 64 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 74. Calm wind becoming southwest around 6 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. West wind 6 to 8 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 70. North wind around 5 mph becoming calm in the evening.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Southeast wind 3 to 5 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Northeast wind around 6 mph becoming southeast after midnight.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 82.
  Click Map For Forecast
Point Forecast:
4 Miles NNW Mapaville MO
 38.29°N 90.53°W (Elev. 499 ft)
1:41 am CDT Aug 3, 2015
1am CDT Aug 3, 2015-6pm CDT Aug 9, 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