Chesterfield, Missouri Weather Conditions

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Current Conditions

  • 88°
  • Scattered Clouds
  • Wind: SSW 5 mph
  • Humidity: 61%
  • Visibility: 10.0 miles
  • Dew Point: 73°
  • Pressure: 29.99 in. -
  • Heat Index: 96

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Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Overcast
Overcast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
89°
87°
80°
76°
74°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Overcast
  • High: 89 °
  • Low: 69 °
  • Overcast
  • Tuesday
  • Clear
  • High: 93 °
  • Low: 69 °
  • Clear
  • Wednesday
  • Clear
  • High: 93 °
  • Low: 69 °
  • Clear
  • Thursday
  • Clear
  • High: 94 °
  • Low: 69 °
  • Clear
  • Friday
  • Clear
  • High: 93 °
  • Low: 70 °
  • Clear

Forecast for Chesterfield, Missouri

Updated: 1:04 PM CDT on January 31, 2015

  • Monday

    Generally cloudy. High 89F. Winds S at 5 to 10 mph.

  • Monday Night

    Some clouds this evening will give way to mainly clear skies overnight. Low 69F. Winds light and variable.

  • Tuesday

    Plentiful sunshine. High 93F. Winds light and variable.

  • Tuesday Night

    A mostly clear sky. Low 69F. Winds light and variable.

  • Wednesday

    Except for a few afternoon clouds, mainly sunny. High 93F. Winds light and variable.

  • Wednesday Night

    Some clouds early will give way to generally clear conditions overnight. Low 69F. Winds light and variable.

  • Thursday

    A mainly sunny sky. High 94F. Winds light and variable.

  • Thursday Night

    Mainly clear. Low 69F. Winds light and variable.

  • Friday

    Plentiful sunshine. High 93F. Winds SSE at 5 to 10 mph.

  • Friday Night

    A mostly clear sky. Low near 70F. Winds light and variable.

  • Saturday

    A mainly sunny sky. High around 95F. Winds light and variable.

  • Saturday Night

    Clear skies. Low around 70F. Winds light and variable.

  • Sunday

    A few clouds early, otherwise mostly sunny. High 93F. Winds light and variable.

  • Sunday Night

    Mostly clear skies. Low 69F. Winds light and variable.

  • Monday

    Partly cloudy skies. High 86F. Winds W at 5 to 10 mph.

  • Monday Night

    Partly cloudy skies early followed by increasing clouds with showers developing later at night. Low 66F. Winds light and variable. Chance of rain 60%.

  • Tuesday

    Showers early then scattered thunderstorms developing later in the day. High 79F. Winds N at 5 to 10 mph. Chance of rain 60%.

  • Tuesday Night

    Mostly clear skies. Low around 60F. Winds light and variable.

  • Wednesday

    Partly cloudy. High 78F. Winds NE at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy skies early will give way to occasional showers later during the night. Low 59F. Winds light and variable. Chance of rain 60%.

  • Thursday

    Intervals of clouds and sunshine. High 79F. Winds ESE at 5 to 10 mph.

  • Thursday Night

    Partly cloudy skies early giving way to a few showers after midnight. Low around 60F. Winds light and variable. Chance of rain 30%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Shadowridge, Ballwin, MO

Updated: 2:42 PM CDT

Temperature: 88.5 °F Dew Point: 75 °F Humidity: 64% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Winding Trails, Ballwin, MO

Updated: 2:34 PM CDT

Temperature: 86.4 °F Dew Point: 77 °F Humidity: 73% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Ranchmoor, Ellisville, MO

Updated: 2:42 PM CDT

Temperature: 91.0 °F Dew Point: 73 °F Humidity: 55% Wind: SE at 4.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Oakwood Farms, Ballwin, MO

Updated: 2:42 PM CDT

Temperature: 90.4 °F Dew Point: 73 °F Humidity: 57% Wind: SE at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Wild Horse Creek Valley, Wildwood, MO

Updated: 2:31 PM CDT

Temperature: 95.7 °F Dew Point: 73 °F Humidity: 49% Wind: South at 2.7 mph Pressure: 29.94 in Hourly Precipitation: - Heat Index: 106 °F Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 2:32 PM CDT

Temperature: 89.8 °F Dew Point: 74 °F Humidity: 60% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Austin Pass Drive, Weldon Spring, MO

Updated: 2:40 PM CDT

Temperature: 88.9 °F Dew Point: 75 °F Humidity: 64% Wind: North at - Pressure: 29.89 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: Westglen Village, Ballwin, MO

Updated: 2:43 PM CDT

Temperature: 89.0 °F Dew Point: 76 °F Humidity: 66% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

Location: Kiefernring, Ballwin, MO

Updated: 2:40 PM CDT

Temperature: 89.2 °F Dew Point: 76 °F Humidity: 64% Wind: North at - Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: Glan Tai Estates, Ballwin, MO

Updated: 2:42 PM CDT

Temperature: 91.6 °F Dew Point: 72 °F Humidity: 53% Wind: East at 2.5 mph Pressure: 29.98 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: Carriage Cove Court, Saint Charles, MO

Updated: 2:40 PM CDT

Temperature: 87.3 °F Dew Point: 79 °F Humidity: 76% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Heat Index: 102 °F Graphs

Location: Arbor Valley, Ballwin, MO

Updated: 2:42 PM CDT

Temperature: 90.7 °F Dew Point: 73 °F Humidity: 57% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 2:42 PM CDT

Temperature: 91.8 °F Dew Point: 71 °F Humidity: 51% Wind: SE at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Woodcliff, Saint Charles, MO

Updated: 2:37 PM CDT

Temperature: 93.6 °F Dew Point: 82 °F Humidity: 70% Wind: SW at 1.1 mph Pressure: 29.66 in Hourly Precipitation: - Heat Index: 118 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 2:41 PM CDT

Temperature: 92.5 °F Dew Point: 76 °F Humidity: 59% Wind: East at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 2:31 PM CDT

Temperature: 92.8 °F Dew Point: 75 °F Humidity: 57% Wind: SE at 1.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 105 °F Graphs

Location: Melrose Woods, Wildwood, MO

Updated: 2:43 PM CDT

Temperature: 85.5 °F Dew Point: 78 °F Humidity: 77% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 97 °F Graphs

Location: Twin Oaks, Twin Oaks, MO

Updated: 2:42 PM CDT

Temperature: 90.0 °F Dew Point: 73 °F Humidity: 57% Wind: ESE at 2.2 mph Pressure: 29.86 in Hourly Precipitation: - Heat Index: 98 °F Graphs

Location: Manchester, MO, Manchester, MO

Updated: 2:12 PM CDT

Temperature: 86.4 °F Dew Point: 76 °F Humidity: 70% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Old Farm Estates, St. Louis, MO

Updated: 2:40 PM CDT

Temperature: 90.2 °F Dew Point: 76 °F Humidity: 64% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 103 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 2:40 PM CDT

Temperature: 93.0 °F Dew Point: 77 °F Humidity: 60% Wind: SW at 2.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 107 °F Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 2:30 PM CDT

Temperature: 98.1 °F Dew Point: 75 °F Humidity: 48% Wind: SE at 3.1 mph Pressure: 29.80 in Hourly Precipitation: - Heat Index: 111 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 2:43 PM CDT

Temperature: 92.3 °F Dew Point: 74 °F Humidity: 55% Wind: ESE at 3.7 mph Pressure: 29.46 in Hourly Precipitation: 0.00 in Heat Index: 102 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 2:43 PM CDT

Temperature: 90.9 °F Dew Point: 74 °F Humidity: 57% Wind: ESE at 1.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 100 °F Graphs

Location: Madison Park, Cottleville, MO

Updated: 2:42 PM CDT

Temperature: 90.3 °F Dew Point: 72 °F Humidity: 56% Wind: SSW at 2.7 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 2:40 PM CDT

Temperature: 85.1 °F Dew Point: 74 °F Humidity: 70% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Heat Index: 93 °F Graphs

Location: Park Charles South, Saint Peters, MO

Updated: 2:26 PM CDT

Temperature: 90.7 °F Dew Point: 78 °F Humidity: 70% Wind: North at - Pressure: 30.10 in Hourly Precipitation: - Heat Index: 108 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 2:33 PM CDT

Temperature: 89.4 °F Dew Point: 59 °F Humidity: 36% Wind: SW at 1.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 2:35 PM CDT

Temperature: 89.7 °F Dew Point: 71 °F Humidity: 54% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Windsor Place, Cottleville, MO

Updated: 2:42 PM CDT

Temperature: 92.3 °F Dew Point: 70 °F Humidity: 49% Wind: South at 3.2 mph Pressure: 29.89 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 2:05 PM CDT

Temperature: 87 °F Dew Point: 72 °F Humidity: 62% Wind: SSE at 2 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 2:43 PM CDT

Temperature: 90.7 °F Dew Point: 72 °F Humidity: 54% Wind: West at 2.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 2:32 PM CDT

Temperature: 92.1 °F Dew Point: 73 °F Humidity: 54% Wind: ENE at 1.7 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 101 °F Graphs

Location: Maryland Heights, MO

Updated: 2:41 PM CDT

Temperature: 89.8 °F Dew Point: 74 °F Humidity: 59% Wind: ESE at 1.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Rule Place Court, Maryland Heights, MO

Updated: 2:40 PM CDT

Temperature: 90.3 °F Dew Point: 74 °F Humidity: 59% Wind: North at - Pressure: 29.85 in Hourly Precipitation: - Heat Index: 100 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 2:40 PM CDT

Temperature: 95.9 °F Dew Point: 71 °F Humidity: 45% Wind: West at 3.1 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 104 °F 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 
1222 PM CDT Monday Aug 31 2015 


Short term: (through late this afternoon) 
issued at 326 am CDT Monday Aug 31 2015 


Threat of convection remains the primary question mark for todays 
forecast. Model guidance over the last few days has not offered any 
clear answers to this question...and unfortunately the signals in 
this mornings guidance isn't much more definitive. 


Overnight water vapor imagery indicates middle level shear axis parked 
from the arklatex region into the lower Great Lakes...with the 
animation of the imagery indicating a weak circulation center has 
worked its way NE from western Arkansas to just east of Uno by 08z. 
Meanwhile...subtle drying over S Illinois suggests some very weak 
shortwave migrating SW through stl area on the north side of the shear 
axis. Obviously this is a fairly chaotic upper air pattern, and since 
features are fairly weak models are having a tough time resolving 
sensible weather trends. 


However...almost all guidance...including the hi-res explicit 
output...suggests some threat of convection over southeast sections 
of the County Warning Area today. While current radar data indicates no precipitation 
in/near our area would not be surprised to see some sunrise surprise 
over the next few hours ahead of upper low as it spins its way into 
southern Illinois (which seems to be a trend hinted at by much of the hi- 
res guidance)...with additional spotty storms attempting to flair up 
during the heat of the afternoon in the vicinity of the shear axis. 
For now have primary focus of afternoon development over S Illinois and southeast 
MO in the vicinity of the aforementioned shear axis. 


Slow moving storms could once again pose a threat of spotty heavy 
downpours...similar to the storm that produced 2.57" @ kfam on 
Sunday afternoon/evening. 


Highs today should be similar to those of yesterday. 


Truett 


Long term: (tonight through sunday) 
issued at 326 am CDT Monday Aug 31 2015 


Even though shear axis will shift further southeast, could still see 
some isolated activity this evening, but confidence is low so kept 
mention out for now. Day crew will need to keep an eye out. 
Otherwise, warmer weather is expected through the rest of the 
forecast period with highs in the upper 80s to low 90s and overnight 
lows in the upper 60s to low 70s. 


As we get into the Holiday weekend, upper level ridge begins to 
weaken allowing next weather system to move closer to forecast area. 
Will see an increase in low level moisture and instability by Sunday 
so kept slight chance probability of precipitation in for portions of the forecast area. 


Byrd 


&& 


Aviation: (for the 18z tafs through 18z Tuesday afternoon) 
issued at 1208 PM CDT Monday Aug 31 2015 


Isod thunderstorms and rain are possible again this afternoon. However...with 
very low chances of impacting a terminal...have kept tafs dry for 
now. Latest guidance suggests cumulus field this afternoon may become 
broken rather than scattered. Will continue to monitor trends. Thunderstorms and rain are 
possible again around sunrise Tuesday morning...but are currently 
expected to remain east of uin/sus/cps. Otherwise...winds will become 
southwesterly Tuesday morning with scattered cumulus forming with bases around 5 kft. 


Specifics for kstl: isod thunderstorms and rain may develop this afternoon. Cumulus field 
may become broken this afternoon but subsidence from this mornings convection 
may limit this. Thunderstorms and rain are possible again Tuesday morning around 
sunrise...but are expected to remain east of terminal. 
Otherwise...winds will become southwesterly Tuesday morning with scattered cumulus 
forming with bases around 5 kft. 


Tilly 


&& 


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


$$ 


Weather forecast office lsx 



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