Ballwin, Missouri Weather Conditions

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Current Conditions

  • 57°
  • Overcast
  • Wind: East 8 mph
  • Humidity: 82%
  • Visibility: 10.0 miles
  • Dew Point: 52°
  • Pressure: 30.01 in. -

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Next 12 Hours

10  am
1  pm
4  pm
7  pm
10  pm
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Partly Cloudy
Partly Cloudy
Fog
Fog
59°
66°
72°
64°
57°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 72 °
  • Low: 55 °
  • Chance of T-Storms
  • Thursday
  • Partly Cloudy
  • High: 75 °
  • Low: 52 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 77 °
  • Low: 61 °
  • Partly Cloudy
  • Saturday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 66 °
  • Chance of a Thunderstorm
  • Sunday
  • Chance of Rain
  • High: 79 °
  • Low: 52 °
  • Chance of Rain

Forecast for Ballwin, Missouri

Updated: 10:00 AM CDT on September 17, 2014

  • Wednesday

    Overcast with a chance of a thunderstorm and a chance of rain. High of 72F. Winds from the SSE at 5 to 10 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 55F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 75F. Winds from the East at 5 to 10 mph shifting to the West in the afternoon.

  • Thursday Night

    Partly cloudy. Low of 52F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 77F. Winds from the SE at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 61F. Winds from the South at 5 to 10 mph.

  • Saturday

    Partly cloudy in the morning, then overcast with a chance of a thunderstorm and rain. High of 84F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Saturday Night

    Overcast with a chance of a thunderstorm and rain in the evening, then partly cloudy with a chance of rain. Low of 66F. Winds from the WSW at 5 to 10 mph. Chance of rain 30%.

  • Sunday

    Overcast with a chance of rain in the morning, then partly cloudy. High of 79F. Winds from the NNW at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Clear. Low of 52F. Winds from the NNW at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 75F. Winds from the NNW at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Low of 50F. Winds from the NNE at 5 to 10 mph.

  • Tuesday

    Partly cloudy. High of 72F. Winds from the NE at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 46F. Winds from the NE at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 70F. Winds from the NE at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Low of 45F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 70F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy. Low of 52F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 72F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 55F. Winds less than 5 mph.

  • Saturday

    Clear. High of 73F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 55F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Oakwood Farms, Ballwin, MO

Updated: 10:31 AM CDT

Temperature: 56.8 °F Dew Point: 55 °F Humidity: 93% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.01 in Graphs

Location: Westglen Village, Ballwin, MO

Updated: 10:31 AM CDT

Temperature: 56.7 °F Dew Point: 55 °F Humidity: 93% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Arbor Valley, Ballwin, MO

Updated: 10:31 AM CDT

Temperature: 57.4 °F Dew Point: 54 °F Humidity: 89% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Graphs

Location: Winding Trails, Ballwin, MO

Updated: 10:23 AM CDT

Temperature: 56.7 °F Dew Point: 55 °F Humidity: 93% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Twin Oaks, Twin Oaks, MO

Updated: 10:30 AM CDT

Temperature: 57.4 °F Dew Point: 56 °F Humidity: 94% Wind: Calm Pressure: 29.93 in Hourly Precipitation: - Graphs

Location: Manchester, MO, Manchester, MO

Updated: 10:20 AM CDT

Temperature: 57.0 °F Dew Point: 54 °F Humidity: 90% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 10:31 AM CDT

Temperature: 59.3 °F Dew Point: 55 °F Humidity: 86% Wind: South at 1.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 10:31 AM CDT

Temperature: 56.6 °F Dew Point: 55 °F Humidity: 95% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.01 in Graphs

Location: Big Bend and I-270, Kirkwood, MO

Updated: 10:30 AM CDT

Temperature: 57.5 °F Dew Point: 50 °F Humidity: 77% Wind: ENE at 1.0 mph Pressure: 30.00 in Hourly Precipitation: 0.76 in Graphs

Location: De Smet Jesuit High School, Creve Coeur, MO

Updated: 10:26 AM CDT

Temperature: 57.6 °F Dew Point: 52 °F Humidity: 82% Wind: ESE at 3.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 10:31 AM CDT

Temperature: 58.8 °F Dew Point: 54 °F Humidity: 84% Wind: SE at 1.0 mph Pressure: 30.02 in Hourly Precipitation: 0.01 in Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 10:20 AM CDT

Temperature: 57.9 °F Dew Point: 54 °F Humidity: 87% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 10:31 AM CDT

Temperature: 60.4 °F Dew Point: 53 °F Humidity: 77% Wind: Calm Pressure: 29.62 in Hourly Precipitation: 0.00 in Graphs

Location: Crest Ave. Kirkwood MO, St. Louis, MO

Updated: 10:27 AM CDT

Temperature: 59.9 °F Dew Point: 55 °F Humidity: 83% Wind: East at 2.7 mph Pressure: 30.02 in Hourly Precipitation: - Graphs

Location: Creve Coeur Park - Forest ReLeaf, St. Louis, MO

Updated: 10:22 AM CDT

Temperature: 59.9 °F Dew Point: 54 °F Humidity: 82% Wind: Calm Pressure: 29.54 in Hourly Precipitation: 0.00 in Graphs

Location: Essex and Geyer, St. Louis, MO

Updated: 10:31 AM CDT

Temperature: 59.5 °F Dew Point: 54 °F Humidity: 83% Wind: ESE at 2.2 mph Pressure: 29.84 in Hourly Precipitation: - Graphs

Location: San Luis Trails, Fenton, MO

Updated: 10:31 AM CDT

Temperature: 56.0 °F Dew Point: 54 °F Humidity: 92% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: MesoWest EURKA1 MO US UPR, Wildwood, MO

Updated: 9:10 AM CDT

Temperature: 55 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Sunset Hills, St Louis, MO

Updated: 10:28 AM CDT

Temperature: 57.4 °F Dew Point: 54 °F Humidity: 89% Wind: Calm Pressure: 30.01 in Hourly Precipitation: - Graphs

Location: Melrose Woods, Wildwood, MO

Updated: 10:31 AM CDT

Temperature: 55.6 °F Dew Point: 54 °F Humidity: 95% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 10:31 AM CDT

Temperature: 59.3 °F Dew Point: 55 °F Humidity: 85% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 10:31 AM CDT

Temperature: 59.9 °F Dew Point: 55 °F Humidity: 84% Wind: South at 1.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: East Madison, Kirkwood, MO, Kirkwood, MO

Updated: 10:31 AM CDT

Temperature: 57.9 °F Dew Point: 53 °F Humidity: 85% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 10:31 AM CDT

Temperature: 58.9 °F Dew Point: 53 °F Humidity: 80% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: St. Louis, MO

Updated: 10:31 AM CDT

Temperature: 56.5 °F Dew Point: 54 °F Humidity: 93% Wind: NE at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.01 in Graphs

Location: Harvester, St. Charles, MO

Updated: 10:28 AM CDT

Temperature: 59.5 °F Dew Point: 55 °F Humidity: 84% Wind: SSE at 2.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Maryland Heights, MO

Updated: 10:27 AM CDT

Temperature: 59.2 °F Dew Point: 54 °F Humidity: 84% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 10:31 AM CDT

Temperature: 59.2 °F Dew Point: 53 °F Humidity: 81% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

Location: Danielle Downs, St. Peters, MO

Updated: 10:31 AM CDT

Temperature: 60.6 °F Dew Point: 57 °F Humidity: 88% Wind: SSW at 2.2 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Graphs

Location: High Ridge Fire District House #1, High Ridge, MO

Updated: 10:23 AM CDT

Temperature: 58.4 °F Dew Point: 54 °F Humidity: 85% Wind: SSE at 5.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: Maryland Heights, St Louis, MO

Updated: 10:31 AM CDT

Temperature: 59.1 °F Dew Point: 53 °F Humidity: 81% Wind: East at 5.0 mph Pressure: 29.37 in Hourly Precipitation: 0.00 in Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 10:30 AM CDT

Temperature: 59.0 °F Dew Point: 48 °F Humidity: 67% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Graphs

Location: Crestwood, Crestwood, MO

Updated: 10:27 AM CDT

Temperature: 57.9 °F Dew Point: 52 °F Humidity: 81% Wind: ESE at 1.7 mph Pressure: 29.76 in Hourly Precipitation: - Graphs

Location: Pacific, Pacific, MO

Updated: 10:30 AM CDT

Temperature: 61.9 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Graphs

Location: Parkridge, Brentwood, MO

Updated: 10:31 AM CDT

Temperature: 59.0 °F Dew Point: - Humidity: - Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Webster Groves, Webster Groves, MO

Updated: 10:30 AM CDT

Temperature: 57.8 °F Dew Point: 51 °F Humidity: 79% Wind: NE at 4.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 10:29 AM CDT

Temperature: 59.9 °F Dew Point: 55 °F Humidity: 83% Wind: SSE at 2.2 mph Pressure: 29.92 in Hourly Precipitation: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated aviation 
National Weather Service St Louis MO 
708 am CDT Wed Sep 17 2014 


Short term: (through late this afternoon) 
issued at 347 am CDT Wed Sep 17 2014 


No changes to the dense fog advisory issued earlier for our south 
central Illinois counties. Some patchy dense fog is occurring further to 
the west into east central MO but this appears to be primarilyl 
confined to river valleys, and high clouds should be moving in 
shortly to limit the dense fog threat along the Mississippi River. 


Otherwise, concern for today is shower and thunderstorm threat, and 
increasing warm air advection and moisture advection finally initiated convection 
between 07-08z over east central Kansas. Low level Theta-E progs suggest 
that this area will continue to grow in coverage (and intensity) 
over the next few hours, with the activity making an E-se surge 
during the morning generally along and especially south of the 
Interstate 70 corridor. While forcing and moisture advection with 
the low level jet would suggest most of the precipitation threat 
would be this morning, there is some indication in both the hi-res 
and synoptic models that additional development will occur this 
afternoon as the increasingly unstable air over the plains interacts 
with the rain-cooled dome from this mornings convection. Because of 
this will continue pops this afternoon, especially over southern 
sections of the County Warning Area. 


Still working on temps, but believe much of the area may struggle to 
warm up due to clouds and the potential of rain-cooled air, 
especially if the convection can linger for any length of time this 
afternoon. Welcome to the cool season... 


Truett 


Long term: (tonight through tuesday) 
issued at 347 am CDT Wed Sep 17 2014 


There will be a continued potential for convection mainly across 
southeast MO tonight in an area of weak low-mid level warm air 
advection north of a weak warm front, and where ample low level 
moisture and instability exists. The threat for any convection 
should end by Thursday afternoon as a strong surface ridge builds 
southward through the Great Lakes region and into MO and Illinois with 
slightly drier and more stable air filtering southwestward through 
our forecast area. Warmer temperatures can be expected on Friday as 
an upper level ridge shifts eastward into MO with southerly surface 
winds on the western periphery of the surface ridge extending 
southwest into southeastern MO. Shortwaves will break down and 
flatten the upper level ridge on Saturday, and this coupled with a 
deepening upper level trough across the northern plains and Great 
Lakes region will allow a cold front to drop southeastward through 
our forecast area late Saturday night and Sunday. The European model (ecmwf) model 
is now slower with the progression of this front compared to the GFS 
model. The chance for convection will return beginning Saturday 
afternoon as the shortwave approaches, then continue Saturday night 
and Sunday as the cold front moves through our area. Most of the 
precipitation should end by Sunday night, although the European model (ecmwf) model 
does still have some precipitation continuing until Monday across 
our area due to the slower progression of the surface cold front and 
850 mb front and as shortwaves drop southeastward through our area 
on the backside of the Great Lakes upper level trough. Much cooler 
temperatures can be expected beginning Sunday night and continuing 
through Tuesday night as a fairly strong surface ridge moves slowly 
eastward through the region with upper level troffing centered over 
the Great Lakes region leading to upper level northwesterly flow 
over our area. The models drop the 850 mb temperatures to 4-8 
degrees c across the forecast area by 12z Tuesday. 


Gks 


&& 


Aviation: (for the 12z tafs through 12z Thursday morning) 
issued at 648 am CDT Wed Sep 17 2014 


Main area of convection that fired in zone of isentropic ascent 
and moisture advection over western Missouri should continue to 
work east-southeast with time. While this movement would take the main 
centroid of convection south of our taf sites, broad low level 
jet is causing some development on the northern fringes of the 
complex that should clip the cou area over the next few hours, and 
have gone with vcsh for now. Also believe most of this activity 
should remain just south of stl area tafs, however it could be a 
close call if northward development continues past mid morning. 
Will be monitoring radar trends during the morning for possible 
adjustments at cou and in the stl area. Meanwhile, development of 
southerly flow has advected low level moisture back across the 
area, with MVFR cigs now into eastern MO and IFR cigs over mid MO. 
With southerly flow increasing see no reason that these MVFR cigs 
will not reach uin and stl area tafs over the next few hours, 
however do expect this MVFR cloud deck to break up late this 
morning and into the afternoon. Area of IFR over mid MO may be 
longer lasting due to persistent precipitation over the Ozarks 
through at least late morning. 


Specifics for kstl: expecting leading edge of MVFR cigs around 
2kft that now extends from east of mjy to upward vertical velocity to push into the 
area by around 15z, with this lower cloud deck then scattering out 
by early afternoon with additional cloudiness aoa 5kft persisting 
into the evening. As mentioned in the main aviation afd, believe 
most of the convection will be south of the taf area, but will be 
monitoring upstream radar trends over mid-MO for Nowcast adjustments. 


Truett 


&& 


Lsx watches/warnings/advisories: 
MO...none. 
Illinois...dense fog advisory until 10 am CDT this morning for Bond Illinois- 
Clinton Illinois-Fayette Illinois-Marion Illinois-Washington Illinois. 


&& 


$$ 


Weather forecast office lsx 



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