Southwest Monsoon Continues; Western Heat Wave Builds

Monsoonal thunderstorms will continue to bring a potential for flash flooding across the Desert Southwest and Four Corners region through at least Monday. Winds from these storms may produce blowing dust that could reduce visibility creating hazardous driving conditions. Meanwhile, scorching heat and critical fire weather conditions persist across parts of the West. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy

86°F

30°C

Humidity 65%
Wind Speed N 5 mph
Barometer 29.97 in (1013.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 15 Jul 1:54 pm CDT
Extended Forecast for

Ballwin MO

  • This
    Afternoon

    This Afternoon: Scattered showers and thunderstorms.  Mostly cloudy, with a high near 87. West wind 3 to 5 mph.  Chance of precipitation is 40%.

    Scattered
    T-storms

    High: 87 °F

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm.  Partly cloudy, with a low around 73. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Isolated
    T-storms then
    Mostly Clear

    Low: 73 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 91. Heat index values as high as 100. Northwest wind 3 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 before 8pm.  Partly cloudy, with a low around 71. North wind 3 to 7 mph.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 71 °F

  • Tuesday

    Tuesday: Sunny, with a high near 89. Northeast wind 3 to 6 mph.

    Sunny

    High: 89 °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 87.

    Mostly Sunny

    High: 87 °F

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 67.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 67 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly between 8am and 2pm.  Partly sunny, with a high near 87.

    Chance
    T-storms

    High: 87 °F

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Mostly cloudy, with a high near 87. West wind 3 to 5 mph. Chance of precipitation is 40%.
Tonight
Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 100. Northwest wind 3 to 8 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. North wind 3 to 7 mph.
Tuesday
Sunny, with a high near 89. Northeast wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between 8am and 2pm. Partly sunny, with a high near 87.
Thursday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
Sunny, with a high near 87.
Click Map For Forecast
Point Forecast:
Ballwin MO
 38.58°N 90.55°W (Elev. 584 ft)
12:56 pm CDT Jul 15, 2018
2pm CDT Jul 15, 2018-6pm CDT Jul 21, 2018
 
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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