Chesterfield, Missouri Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 37°
  • Overcast
  • Wind: Calm
  • Humidity: 70%
  • Visibility: 8.0 miles
  • Dew Point: 28°
  • Pressure: 30.28 in. -

Select a Section

Click a section below for more information.

Next 12 Hours

3  pm
6  pm
9  pm
12  am
3  am
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
36°
32°
32°
36°
32°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Overcast
  • High: 37 °
  • Low: 32 °
  • Overcast
  • Saturday
  • Partly Cloudy
  • High: 41 °
  • Low: 30 °
  • Partly Cloudy
  • Sunday
  • Mostly Cloudy
  • High: 45 °
  • Low: 36 °
  • Mostly Cloudy
  • Monday
  • Overcast
  • High: 48 °
  • Low: 37 °
  • Overcast
  • Tuesday
  • Overcast
  • High: 45 °
  • Low: 34 °
  • Overcast

Forecast for Chesterfield, Missouri

Updated: 3:00 PM CST on December 19, 2014

  • Friday

    Overcast. Fog early. High of 37F. Winds less than 5 mph.

  • Friday Night

    Overcast. Low of 32F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 41F. Winds less than 5 mph.

  • Saturday Night

    Partly cloudy. Low of 30F. Winds less than 5 mph.

  • Sunday

    Overcast in the morning, then mostly cloudy. High of 45F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Mostly cloudy in the evening, then overcast. Low of 36F. Winds from the South at 5 to 10 mph.

  • Monday

    Overcast. High of 48F. Breezy. Winds from the South at 10 to 20 mph.

  • Monday Night

    Overcast. Low of 37F. Winds from the SW at 10 to 15 mph.

  • Tuesday

    Overcast. High of 45F. Winds from the WNW at 10 to 15 mph.

  • Tuesday Night

    Overcast. Low of 34F with a windchill as low as 27F. Breezy. Winds from the WNW at 15 to 20 mph.

  • Wednesday

    Partly cloudy. High of 37F with a windchill as low as 25F. Breezy. Winds from the West at 15 to 20 mph.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 30F with a windchill as low as 21F. Winds from the WSW at 10 to 15 mph.

  • Thursday

    Partly cloudy. Fog early. High of 45F. Winds from the SSW at 5 to 15 mph.

  • Thursday Night

    Mostly cloudy. Fog overnight. Low of 34F with a windchill as low as 27F. Winds from the South at 10 to 15 mph.

  • Friday

    Partly cloudy. High of 39F with a windchill as low as 27F. Breezy. Winds from the WNW at 15 to 20 mph.

  • Friday Night

    Partly cloudy. Low of 28F with a windchill as low as 21F. Winds from the WNW at 5 to 15 mph.

  • Saturday

    Partly cloudy. High of 34F with a windchill as low as 21F. Winds from the WNW at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 23F. Winds from the WNW at 5 to 10 mph.

  • Sunday

    Clear. High of 30F. Winds from the WNW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 23F. Winds less than 5 mph.

  • Monday

    Clear. High of 28F with a windchill as low as 21F. Winds from the WNW at 5 to 10 mph.

  • Monday Night

    Clear. Low of 23F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Winding Trails, Ballwin, MO

Updated: 3:34 PM CST

Temperature: 35.9 °F Dew Point: 32 °F Humidity: 87% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Oakwood Farms, Ballwin, MO

Updated: 3:36 PM CST

Temperature: 35.5 °F Dew Point: 31 °F Humidity: 82% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.01 in Windchill: 36 °F Graphs

Location: APRSWXNET Saint Charles MO US, Saint Charles, MO

Updated: 3:01 PM CST

Temperature: 36 °F Dew Point: 30 °F Humidity: 79% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Westglen Village, Ballwin, MO

Updated: 3:36 PM CST

Temperature: 35.4 °F Dew Point: 30 °F Humidity: 82% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Kiefernring, Ballwin, MO

Updated: 3:35 PM CST

Temperature: 36.0 °F Dew Point: 33 °F Humidity: 88% Wind: North at - Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Glan Tai Estates, Ballwin, MO

Updated: 3:36 PM CST

Temperature: 36.9 °F Dew Point: 27 °F Humidity: 67% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.01 in Windchill: 37 °F Graphs

Location: Arbor Valley, Ballwin, MO

Updated: 3:35 PM CST

Temperature: 36.4 °F Dew Point: 30 °F Humidity: 78% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 3:36 PM CST

Temperature: 36.5 °F Dew Point: 27 °F Humidity: 69% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 3:36 PM CST

Temperature: 35.8 °F Dew Point: 30 °F Humidity: 79% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 3:24 PM CST

Temperature: 37.5 °F Dew Point: 32 °F Humidity: 79% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Melrose Woods, Wildwood, MO

Updated: 3:36 PM CST

Temperature: 35.0 °F Dew Point: 32 °F Humidity: 88% Wind: Calm Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Twin Oaks, Twin Oaks, MO

Updated: 3:30 PM CST

Temperature: 36.9 °F Dew Point: 31 °F Humidity: 80% Wind: Calm Pressure: 30.17 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: APRSWXNET Wildwood MO US, Eureka, MO

Updated: 3:00 PM CST

Temperature: 34 °F Dew Point: 31 °F Humidity: 87% Wind: NE at 2 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Manchester, MO, Manchester, MO

Updated: 3:35 PM CST

Temperature: 36.3 °F Dew Point: 30 °F Humidity: 79% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 3:27 PM CST

Temperature: 37.0 °F Dew Point: 31 °F Humidity: 78% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Windwood,Nic S., St. Peters, MO

Updated: 3:24 PM CST

Temperature: 37.6 °F Dew Point: 30 °F Humidity: 73% Wind: Calm Pressure: 30.06 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 3:35 PM CST

Temperature: 37.8 °F Dew Point: 31 °F Humidity: 77% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 3:36 PM CST

Temperature: 38.1 °F Dew Point: 32 °F Humidity: 77% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: APRSWXNET Creve Coeur MO US, Saint Louis, MO

Updated: 3:00 PM CST

Temperature: 38 °F Dew Point: 31 °F Humidity: 75% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 3:36 PM CST

Temperature: 37.6 °F Dew Point: 30 °F Humidity: 74% Wind: ESE at 1.0 mph Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 3:22 PM CST

Temperature: 37.4 °F Dew Point: 31 °F Humidity: 78% Wind: Calm Pressure: 30.17 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 3:36 PM CST

Temperature: 37.9 °F Dew Point: 31 °F Humidity: 76% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

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

Updated: 3:30 PM CST

Temperature: 35.5 °F Dew Point: 29 °F Humidity: 76% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Country Crossing - Birdie Hills and Treeshadow, St. Peters, MO

Updated: 3:25 PM CST

Temperature: 38.7 °F Dew Point: 32 °F Humidity: 75% Wind: Calm Pressure: 30.14 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Maryland Heights, MO

Updated: 3:32 PM CST

Temperature: 37.8 °F Dew Point: 31 °F Humidity: 77% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Ladue Meadows, Creve Coeur, MO

Updated: 3:34 PM CST

Temperature: 37.8 °F Dew Point: 30 °F Humidity: 74% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 3:35 PM CST

Temperature: 36.5 °F Dew Point: 28 °F Humidity: 70% Wind: ESE at 2.0 mph Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 3:36 PM CST

Temperature: 37.0 °F Dew Point: 31 °F Humidity: 79% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 3:36 PM CST

Temperature: 37.9 °F Dew Point: 31 °F Humidity: 76% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 3:36 PM CST

Temperature: 36.8 °F Dew Point: 31 °F Humidity: 76% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 3:36 PM CST

Temperature: 36.4 °F Dew Point: 31 °F Humidity: 80% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: St. Peters, St. Peters, MO

Updated: 3:36 PM CST

Temperature: 36.7 °F Dew Point: 31 °F Humidity: 79% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

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

Updated: 3:35 PM CST

Temperature: 36.2 °F Dew Point: 30 °F Humidity: 78% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Little Oaks Drive, O'Fallon, MO

Updated: 3:21 PM CST

Temperature: 39.9 °F Dew Point: 32 °F Humidity: 73% Wind: North at - Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: APRSWXNET Defiance MO US, Defiance, MO

Updated: 2:50 PM CST

Temperature: 35 °F Dew Point: 31 °F Humidity: 86% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.01 in Windchill: 35 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 3:36 PM CST

Temperature: 37.0 °F Dew Point: 30 °F Humidity: 76% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 37 °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 
315 PM CST Fri Dec 19 2014 


Short term: (through late tonight) 
issued at 309 PM CST Fri Dec 19 2014 


Shortwave energizing southern stream system over the Gulf Coast is 
spreading some mid and high level cloudiness across our region 
this afternoon. Regional radar mosaic is indicating some very 
light echoes associated with this cloud deck slowly working their 
way from N Arkansas into se MO, so will continue the mention of flurries 
in our far southeast counties into the early evening hours. 


Otherwise, broad area of low level moisture remains locked on SW 
periphery of the surface ridge that stretches from the Great Lakes 
into the lower Ohio Valley, and this low level moisture should 
keep skies cloudy over most of the region even after the passage 
of the aforementioned shortwave. A secondary shortwave is progged 
to drop from the mid MO valley after midnight tonight, producing 
some weak low level warm air advection advection over western sections of the 
County Warning Area. However, forecast sounding suggest that moisture will remain 
stratified in the lowest few thousand feet of the air mass with very 
little moisture in layer that would allow for ice nuclei to form. 
Therefore, any precip associated with the broad area of lift and 
warm air advection would likely be in the form of drizzle, much as suggested by 
going forecasts. Temperatures aren't expected to drop more than a 
few degrees from their current levels, but latest forecast of 
hourly temp trends suggest that some freezing drizzle will be 
possible in northern parts of the fa, primarily along and north of 
a Shelbina-Bowling Green line. Relatively warm ground temps (mo ag 
site at Novelty has 2-4" soil temps between 32-35) and Road 
treatments from yesterday's light snowfall should mitigate most 
problems if freezing drizzle does form, but obviously we will be 
monitoring this threat. 


Truett 


Long term: (saturday through next friday) 
issued at 309 PM CST Fri Dec 19 2014 


Expect quiet weather this weekend with a gradual warming trend 
from Saturday through Monday. A compact vort Max moving from Iowa 
into Illinois on Saturday might support light drizzle during the morning 
hours. 


Precipitation chances increase on Sunday night into Monday ahead of 
a clipper-like system which will be developing over the northern 
plains and eventually closing off over the central or eastern Continental U.S.. 
this system will probably bring periods of rain to the area from 
Monday through Tuesday, especially on Monday (central mo) and 
Monday night (eastern MO and western il). Cooler temperatures are 
expected behind Monday night's cold front, and this may cause the 
rain to mix with snow at times. Light snow could linger into 
Wednesday, depending on how quickly the system moves away from the 
area. 


A brief period of shortwave ridging is anticipated during the middle 
to late part of the week ahead of a developing low pressure system 
which could bring widespread rain/snow to the area next 
Friday/Friday night. The model solutions which depict low pressure 
systems at these extended time ranges often undergo several 
changes, therefore there is low confidence in the timing/location 
of any precipitation for late next week. 


Kanofsky 


&& 


Aviation: (for the 18z tafs through 18z Saturday afternoon) 
issued at 1155 am CST Fri Dec 19 2014 


Pocket of low level dry air on the Illinois side of the Mississippi 
River continue to make for tricky aviation forecasts. Will 
primarily go with MVFR cigs from 1.5-3kft this afternoon, although 
its possible that sites along the river (kuin and stl Metro tafs) 
may be on the fringes of this cloud deck. Wedge of dry air is 
forecast to hold firm tonight, and while it appears likely that 
IFR fog and stratus will once again form over cou in the deeper 
low level moisture, trend is less clear cut for sites along the 
river. It's interesting that most guidance isn't as bullish as 
yesterday with IFR development at uin and stl Metro, in spite of 
the fact that low level flow does become a bit more southerly 
during the predawn hours (albeit weakly so). So, for these 
locations have headed towards lower end MVFR cigs/vsbys during the 
predawn hours, with the expectation that the primary IFR deck will 
remain just west of the msrvr. 


Specifics for kstl: as mentioned above, area will be on the 
western fringes of a pocket of drier low level air over Illinois. Have 
generally gone with bkn MVFR cloud deck through 06z to try to 
reflect this, but a slight shift in the edge of this moisture 
could mean more or less cloudiness in the MVFR range. Forecast 
hints at some lower vsbys and cloudiness during the predawn hours, 
but based on the preponderence of guidance have maintained 
prevailing ceiling and vsbys in the MVFR range. 


Truett 


&& 


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


$$ 


Weather forecast office lsx 












National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.