Ballwin, Missouri Weather Conditions

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Current Conditions

  • 73°
  • Clear
  • Wind: SSW 5 mph
  • Humidity: 84%
  • Visibility: 10.0 miles
  • Dew Point: 68°
  • Pressure: 29.89 in. 0

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Thunderstorm
T-storms
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
72°
70°
77°
84°
86°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Thunderstorm
  • High: 88 °
  • Low: 68 °
  • T-Storms
  • Sunday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 72 °
  • Chance of a Thunderstorm
  • Monday
  • Thunderstorm
  • High: 88 °
  • Low: 68 °
  • T-Storms
  • Tuesday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 68 °
  • Chance of T-Storms
  • Wednesday
  • Chance of a Thunderstorm
  • High: 95 °
  • Low: 72 °
  • Chance of T-Storms

Forecast for Ballwin, Missouri

Updated: 4:00 AM CDT on August 30, 2014

  • Saturday

    Mostly cloudy with a chance of a thunderstorm and a chance of rain, then thunderstorms and rain showers in the afternoon. High of 88F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.

  • Saturday Night

    Overcast with a chance of a thunderstorm and a chance of rain in the evening, then partly cloudy with a chance of a thunderstorm and a chance of rain. Fog overnight. Low of 68F. Winds less than 5 mph. Chance of rain 30%.

  • Sunday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 88F with a heat index of 93F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain after midnight. Low of 72F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Monday

    Overcast with thunderstorms and rain showers. High of 88F with a heat index of 95F. Winds from the SSW at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Monday Night

    Overcast with thunderstorms, then a chance of a thunderstorm and rain after midnight. Fog overnight. Low of 68F. Winds from the SW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.6 in. possible.

  • Tuesday

    Overcast with a chance of a thunderstorm and rain in the morning, then mostly cloudy. High of 86F. Winds less than 5 mph. Chance of rain 30%.

  • Tuesday Night

    Mostly cloudy. Low of 68F. Winds less than 5 mph.

  • Wednesday

    Overcast in the morning, then mostly cloudy with a chance of a thunderstorm and rain. High of 95F with a heat index of 109F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 72F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. High of 91F with a heat index of 97F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.

  • Thursday Night

    Partly cloudy. Low of 70F. Winds from the SSW at 5 to 10 mph.

  • Friday

    Partly cloudy. High of 88F. Winds from the SSW at 5 to 10 mph.

  • Friday Night

    Clear. Low of 68F. Winds from the SSW at 5 to 10 mph.

  • Saturday

    Partly cloudy with a chance of a thunderstorm. High of 93F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Saturday Night

    Clear with a chance of a thunderstorm. Low of 70F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday

    Mostly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 66F. Winds less than 5 mph. Chance of rain 40%.

  • Monday

    Mostly cloudy with a chance of a thunderstorm. High of 91F. Winds less than 5 mph. Chance of rain 40%.

  • Monday Night

    Mostly cloudy. Fog overnight. Low of 66F. Winds less than 5 mph.

  • Tuesday

    Mostly cloudy with a chance of a thunderstorm. High of 91F. Winds less than 5 mph. Chance of rain 40%.

  • Tuesday Night

    Clear. Fog overnight. Low of 66F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Oakwood Farms, Ballwin, MO

Updated: 5:26 AM CDT

Temperature: 71.4 °F Dew Point: 68 °F Humidity: 89% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Westglen Village, Ballwin, MO

Updated: 5:26 AM CDT

Temperature: 71.9 °F Dew Point: 69 °F Humidity: 90% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Arbor Valley, Ballwin, MO

Updated: 5:26 AM CDT

Temperature: 71.7 °F Dew Point: 68 °F Humidity: 88% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Winding Trails, Ballwin, MO

Updated: 5:23 AM CDT

Temperature: 72.6 °F Dew Point: 70 °F Humidity: 90% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Twin Oaks, Twin Oaks, MO

Updated: 5:26 AM CDT

Temperature: 72.9 °F Dew Point: 68 °F Humidity: 86% Wind: Calm Pressure: 29.87 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: Manchester, MO, Manchester, MO

Updated: 5:10 AM CDT

Temperature: 73.5 °F Dew Point: 69 °F Humidity: 85% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 5:26 AM CDT

Temperature: 74.5 °F Dew Point: 69 °F Humidity: 84% Wind: SSE at 3.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 5:26 AM CDT

Temperature: 73.4 °F Dew Point: 69 °F Humidity: 85% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

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

Updated: 5:25 AM CDT

Temperature: 74.1 °F Dew Point: 66 °F Humidity: 75% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

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

Updated: 5:15 AM CDT

Temperature: 73.9 °F Dew Point: 67 °F Humidity: 80% Wind: SSW at 7.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 5:26 AM CDT

Temperature: 74.0 °F Dew Point: 68 °F Humidity: 83% Wind: SE at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 5:20 AM CDT

Temperature: 72.7 °F Dew Point: 69 °F Humidity: 88% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 5:26 AM CDT

Temperature: 72.9 °F Dew Point: 69 °F Humidity: 88% Wind: Calm Pressure: 29.50 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

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

Updated: 2:52 AM CDT

Temperature: 76.8 °F Dew Point: 70 °F Humidity: 79% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 5:26 AM CDT

Temperature: 73.6 °F Dew Point: 66 °F Humidity: 77% Wind: NNE at 1.2 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

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

Updated: 5:21 AM CDT

Temperature: 72.9 °F Dew Point: 69 °F Humidity: 87% Wind: Calm Pressure: 29.43 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Essex and Geyer, St. Louis, MO

Updated: 5:20 AM CDT

Temperature: 72.5 °F Dew Point: 67 °F Humidity: 82% Wind: SW at 1.1 mph Pressure: 29.73 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: San Luis Trails, Fenton, MO

Updated: 5:26 AM CDT

Temperature: 73.3 °F Dew Point: 67 °F Humidity: 80% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Sunset Hills, St Louis, MO

Updated: 5:21 AM CDT

Temperature: 74.1 °F Dew Point: 69 °F Humidity: 84% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Melrose Woods, Wildwood, MO

Updated: 5:26 AM CDT

Temperature: 71.5 °F Dew Point: 68 °F Humidity: 90% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 5:26 AM CDT

Temperature: 75.0 °F Dew Point: 69 °F Humidity: 82% Wind: SSW at 1.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 5:26 AM CDT

Temperature: 72.9 °F Dew Point: 69 °F Humidity: 87% Wind: South at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

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

Updated: 5:26 AM CDT

Temperature: 73.8 °F Dew Point: 68 °F Humidity: 84% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 5:26 AM CDT

Temperature: 74.0 °F Dew Point: 67 °F Humidity: 78% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 5:13 AM CDT

Temperature: 73.6 °F Dew Point: 70 °F Humidity: 87% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 5:26 AM CDT

Temperature: 73.0 °F Dew Point: 70 °F Humidity: 89% Wind: WNW at 1.1 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Danielle Downs, St. Peters, MO

Updated: 5:26 AM CDT

Temperature: 73.2 °F Dew Point: 72 °F Humidity: 95% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 5:23 AM CDT

Temperature: 75.0 °F Dew Point: 70 °F Humidity: 83% Wind: SSW at 3.0 mph Pressure: 29.86 in Hourly Precipitation: 0.01 in Heat Index: 75 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 5:17 AM CDT

Temperature: 74.1 °F Dew Point: 62 °F Humidity: 67% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Crestwood, Crestwood, MO

Updated: 5:26 AM CDT

Temperature: 74.1 °F Dew Point: 66 °F Humidity: 76% Wind: Calm Pressure: 29.64 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Pacific, Pacific, MO

Updated: 5:20 AM CDT

Temperature: 72.5 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: - Heat Index: - Graphs

Location: Parkridge, Brentwood, MO

Updated: 5:26 AM CDT

Temperature: 75.0 °F Dew Point: - Humidity: - Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Webster Groves, Webster Groves, MO

Updated: 5:25 AM CDT

Temperature: 74.2 °F Dew Point: 69 °F Humidity: 84% Wind: SSE at 4.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 5:20 AM CDT

Temperature: 72.9 °F Dew Point: 69 °F Humidity: 87% Wind: South at 1.7 mph Pressure: 29.82 in Hourly Precipitation: - Heat Index: 71 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 5:26 AM CDT

Temperature: 73.2 °F Dew Point: 69 °F Humidity: 86% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
346 am CDT Sat Aug 30 2014 


Short term: (through late this afternoon) 
issued at 330 am CDT Sat Aug 30 2014 


Regional radar is showing a number of areas of showers and 
thunderstorms across Missouri and western Illinois early this 
morning. These are generally within a weak warm advection regime 
ahead of a upper trof moving through the MS valley and in advance 
of the attendant cold front. While all the current activity should 
continue moving east northeast this morning, the overall consensus 
amongst the guidance and convection allowing models is that there 
should be a general increase in the scattered activity currently 
over southwest Missouri as the morning progresses and it moves 
northeast. Additional development is also expected during the 
later part of the morning into the afternoon in a broad southwest 
to northeast zone ahead of the slowly advancing cold front and centered 
through the southeast half of the County Warning Area. Given the current temperatures 
in the 70s, low-mid 80s looks reasonable for highs today. 


Glass 


Long term: (tonight through friday) 
issued at 330 am CDT Sat Aug 30 2014 


Convective trends are not completely clear cut tonight. The main 
upper trof axis should have passed to the east by early this 
evening, but there is a weak lingering vort Max still to pass and 
the front appears to wash out across northeast Missouri and west 
central Illinois. Sans the NAM, the model consensus keeps a chance 
of showers and thunderstorms centered though the southeast half of 
the County Warning Area during the evening. Sunday looks largely dry and warmer 
with possibly some isolated diurnal storms across southeast MO and 
southwest Illinois. The threat of organized covection should 
slowly spread into northeast Missouri late Sunday night with the 
approach of a progressive long wave trof and attendant cold front and 
intensifying southwesterly low level jet. Thunderstorms appear likely on 
Labor Day and Monday night as the cold front moves slowly southward 
into a moist unstable air mass, and as a southwesterly low level jet and the 
upper trof contribute to lift and cap removal. This system will be 
accompanied by deep layer shear of 30-40+ knots resulting in the 
potential for organized severe storms. Showers and thunderstorms 
could persist across the southern County Warning Area Tuesday and maybe even into 
Tuesday night and Wednesday in the vicinity of the front and then 
as it retreats back northward late Wednesday. 


Late in the week ahead the upper ridge is forecast to restablish 
itself over the southeast half of the nation, bringing a return of 
more Summer like weather/heat. 


Glass 


&& 


Aviation: (for the 06z tafs through 06z Saturday night) 
issued at 1042 PM CDT Fri Aug 29 2014 


There were two areas of showers and storms this evening. The first 
was across southeast MO and will likely remain southeast of the 
taf sites late tonight, although they could get close to cps. 
There were scattered showers/storms across northwest MO ahead of 
an approaching upper level disturbance which may impact the uin 
area late tonight. May include thunderstorms in the vicinity in the uin taf. It appears 
that there will be enough cloud cover and strong enough surface 
winds to deter fog formation, although could not rule out light 
fog late tonight/early Saturday morning in sus and cps where the 
surface wind will be a little lighter and in areas which had 
significant rainfall this evening. Should be at least scattered 
showers/storms in the St Louis Metro area Saturday afternoon along 
and ahead of weakening cold front/surface trough dropping 
southeastward through the area. Sly surface winds will become 
more swly late tonight and Saturday morning. 


Specifics for kstl: current shower/storm activity on radar will 
likely miss stl late tonight, although could not rule out a 
passing sprinkle. Will likely leave stl taf dry late tonight and 
Saturday morning due to uncertainty in coverage and timing of 
additional convection. Will include thunderstorms in the vicinity in the taf Saturday 
afternoon with at least scattered showers/storms expected at this 
time due to diurnal destabilization along and ahead of a weak 
surface trough/cold front. Prevailing S-swly surface winds through 
the period. 


Gks 


&& 


Preliminary point temperatures/pops: 
Saint Louis 86 72 90 74 / 60 30 20 10 
Quincy 84 67 88 71 / 30 10 5 50 
Columbia 86 68 91 72 / 40 20 10 40 
Jefferson City 86 69 91 72 / 50 20 10 30 
Salem 85 70 86 72 / 60 50 20 10 
Farmington 84 69 87 72 / 60 50 20 10 


&& 


Lsx watches/warnings/advisories: 
MO...none. 
Illinois...none. 
&& 


$$ 


Weather forecast office lsx 



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