Saint Charles, Missouri Weather Conditions

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Current Conditions

  • 47°
  • Clear
  • Wind: ENE 8 mph
  • Humidity: 80%
  • Visibility: 10.0 miles
  • Dew Point: 41°
  • Pressure: 30.22 in. +

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Next 12 Hours

1  am
4  am
7  am
10  am
1  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
48°
45°
41°
50°
57°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Clear
  • High: 61 °
  • Low: 43 °
  • Clear
  • Thursday
  • Chance of Rain
  • High: 61 °
  • Low: 52 °
  • Chance of Rain
  • Friday
  • Partly Cloudy
  • High: 73 °
  • Low: 54 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 73 °
  • Low: 54 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 77 °
  • Low: 59 °
  • Partly Cloudy

Forecast for Saint Charles, Missouri

Updated: 10:00 PM CDT on October 21, 2014

  • Wednesday

    Clear. High of 61F. Winds from the ESE at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 43F. Winds less than 5 mph.

  • Thursday

    Mostly cloudy with a chance of rain in the afternoon. High of 61F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

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

  • Friday

    Partly cloudy in the morning, then clear. High of 73F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 54F. Winds from the SSW at 5 to 10 mph shifting to the West after midnight.

  • Saturday

    Partly cloudy. Fog early. High of 73F. Winds from the NW at 5 to 10 mph.

  • Saturday Night

    Clear in the evening, then partly cloudy. Low of 54F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. High of 77F. Winds from the SSE at 10 to 15 mph.

  • Sunday Night

    Partly cloudy. Low of 59F. Winds from the South at 10 to 15 mph.

  • Monday

    Mostly cloudy. High of 72F. Breezy. Winds from the South at 15 to 20 mph.

  • Monday Night

    Overcast with a chance of a thunderstorm. Low of 54F. Winds from the South at 10 to 15 mph. Chance of rain 20%.

  • Tuesday

    Partly cloudy with a chance of rain. High of 64F. Winds from the WNW at 10 to 15 mph. Chance of rain 30%.

  • Tuesday Night

    Clear. Low of 43F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 63F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 45F. Winds less than 5 mph.

  • Thursday

    Clear. Fog early. High of 63F. Winds less than 5 mph.

  • Thursday Night

    Clear. Fog overnight. Low of 39F. Winds less than 5 mph.

  • Friday

    Clear. Fog early. High of 59F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 39F. Winds less than 5 mph.

  • Saturday

    Clear. Fog early. High of 61F. Winds less than 5 mph.

  • Saturday Night

    Clear. Fog overnight. Low of 39F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Fox Hill, Saint Charles, MO

Updated: 1:15 AM CDT

Temperature: 47.1 °F Dew Point: 41 °F Humidity: 80% Wind: ESE at 1.6 mph Pressure: 30.22 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 1:20 AM CDT

Temperature: 49.1 °F Dew Point: 43 °F Humidity: 79% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 1:21 AM CDT

Temperature: 48.4 °F Dew Point: 39 °F Humidity: 71% Wind: East at 2.3 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Historic Saint Charles, Saint Charles, MO

Updated: 1:20 AM CDT

Temperature: 48.8 °F Dew Point: 42 °F Humidity: 79% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 1:21 AM CDT

Temperature: 49.1 °F Dew Point: 42 °F Humidity: 76% Wind: ESE at 1.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Polestar Boating Center, St. Charles, MO

Updated: 1:21 AM CDT

Temperature: 48.7 °F Dew Point: 42 °F Humidity: 79% Wind: ESE at 1.0 mph Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 1:21 AM CDT

Temperature: 48.9 °F Dew Point: 42 °F Humidity: 76% Wind: West at 2.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 1:21 AM CDT

Temperature: 48.5 °F Dew Point: 43 °F Humidity: 80% Wind: SE at 1.0 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: manors of orchard glen, St. Peters, MO

Updated: 1:21 AM CDT

Temperature: 49.1 °F Dew Point: 41 °F Humidity: 74% Wind: East at 3.4 mph Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 1:21 AM CDT

Temperature: 49.2 °F Dew Point: 42 °F Humidity: 75% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 1:14 AM CDT

Temperature: 52.2 °F Dew Point: 34 °F Humidity: 49% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Danielle Downs, St. Peters, MO

Updated: 1:21 AM CDT

Temperature: 49.6 °F Dew Point: 43 °F Humidity: 79% Wind: East at 1.6 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: St. Peters, St. Peters, MO

Updated: 1:21 AM CDT

Temperature: 46.6 °F Dew Point: 41 °F Humidity: 80% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 1:21 AM CDT

Temperature: 49.5 °F Dew Point: 43 °F Humidity: 77% Wind: South at 1.0 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 1:13 AM CDT

Temperature: 49.7 °F Dew Point: 43 °F Humidity: 77% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Maryland Heights, MO

Updated: 1:17 AM CDT

Temperature: 49.8 °F Dew Point: 42 °F Humidity: 76% Wind: East at 1.0 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: St. Ann, MO, St. Ann, MO

Updated: 1:13 AM CDT

Temperature: 47.7 °F Dew Point: 42 °F Humidity: 79% Wind: Calm Pressure: 30.13 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: 1 Mile South of St. Louis Lambert Airport, Woodson Terrace, MO

Updated: 1:21 AM CDT

Temperature: 47.9 °F Dew Point: 42 °F Humidity: 80% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 1:21 AM CDT

Temperature: 46.9 °F Dew Point: 37 °F Humidity: 68% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 1:21 AM CDT

Temperature: 49.6 °F Dew Point: 42 °F Humidity: 76% Wind: East at 2.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 1:13 AM CDT

Temperature: 49.1 °F Dew Point: 42 °F Humidity: 75% Wind: East at 5.0 mph Pressure: 29.56 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 1:08 AM CDT

Temperature: 48.4 °F Dew Point: 42 °F Humidity: 78% Wind: Calm Pressure: 30.12 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 1:21 AM CDT

Temperature: 47.2 °F Dew Point: 40 °F Humidity: 75% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

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

Updated: 1:12 AM CDT

Temperature: 46.6 °F Dew Point: 42 °F Humidity: 83% Wind: East at 4.2 mph Pressure: 30.27 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 1:21 AM CDT

Temperature: 47.2 °F Dew Point: 42 °F Humidity: 82% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 1:21 AM CDT

Temperature: 49.8 °F Dew Point: 40 °F Humidity: 70% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: O'fallon / St. Peters, St. Peters, MO

Updated: 1:21 AM CDT

Temperature: 48.2 °F Dew Point: 42 °F Humidity: 78% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 1:21 AM CDT

Temperature: 47.8 °F Dew Point: 42 °F Humidity: 79% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 1:21 AM CDT

Temperature: 48.1 °F Dew Point: 43 °F Humidity: 82% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 1:21 AM CDT

Temperature: 49.0 °F Dew Point: 40 °F Humidity: 72% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 1:19 AM CDT

Temperature: 49.3 °F Dew Point: 42 °F Humidity: 76% Wind: East at 2.0 mph Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 1:21 AM CDT

Temperature: 47.3 °F Dew Point: 42 °F Humidity: 82% Wind: ENE at 1.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Downtown O'Fallon, O'Fallon, MO

Updated: 1:21 AM CDT

Temperature: 48.0 °F Dew Point: 42 °F Humidity: 78% Wind: East at 4.0 mph Pressure: 30.56 in Hourly Precipitation: 0.00 in Windchill: 47 °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 
1146 PM CDT Tue Oct 21 2014 


Short term: (through late tonight) 
issued at 327 PM CDT Tue Oct 21 2014 


Surface ridge extending from Wisconsin south-southwest through the 
Mississippi Valley into the southeast plains will drift to the 
southeast tonight. The upper level ridge will continue to build 
overhead keeping the sky clear. Expect light and variable surface 
wind this evening to turn to the east southeast overnight as the 
surface ridge drifts by. With good radiational cooling conditions 
for at least part of the night, expect temperatures to dip down to 
near or slightly below this morning's lows. Used a combination of 
consensus MOS and mav for forecast lows tomorrow morning. 


Carney 


Long term: (wednesday through next tuesday) 
issued at 327 PM CDT Tue Oct 21 2014 


(wednesday through friday) 


Dry weather is expected through Wednesday evening as a upper ridge 
currently over the plains will move across the area. Then will 
continue a slight chance for showers late on Wednesday night over 
northeast and central Missouri as well as west central Illinois as 
the GFS/NAM/ECMWF are all in good agreement that a upper trough will 
approach the area. This trough will move quickly across the area on 
Thursday, though moisture will be limited with this system, so have 
kept rain chances associated with this system in area mainly north 
of I-70 where best ascent will be. Then subsidence will begin to 
build into the area behind the trough, so expect dry weather to 
return to the area for Thursday night and Friday. 


Went toward the warmer GFS MOS for highs the next few days which 
matches well with mixing down 900mb temperatures. 


(Saturday through next tuesday) 


Weekend still looks dry and warm for late October as both the GFS 
and European model (ecmwf) showing a large upper ridge building over the area. 850mb 
temperatures will climb to near 15c as surface winds become 
southerly by Sunday. Both the GFS and European model (ecmwf) MOS guidance support 
high temperatures well into the 70s Saturday into Monday. By early 
next week, the latest runs of the GFS/European model (ecmwf) are in good agreement 
that a large trough will be moving through the plains into the 
Midwest with the attendant cold front reaching Missouri and 
Illinois by Monday night. Will carry just low chances for showers 
as there have been run-to-run model continuity issues which will 
ultimately determine the timing of the rain early next week. 


Britt 


&& 


Aviation: (for the 06z tafs through 06z Wednesday night) 
issued at 1137 PM CDT Tue Oct 21 2014 


Surface high pressure extending from the southern Great Lakes 
region through the mid-Mississippi and lower Ohio Valley regions 
will slowly move southeastward through Wednesday evening. Surface 
winds will generally be easterly tonight then become east- 
southeast on Wednesday. Skies will remainn clear expect for some 
local river fog possible for ksus and kcps where visibilities may 
drop to 2 to 5 sm. 


Specifics for kstl: northeast surface winds will become easterly 
by daybreak 3 to 5 kts. Winds will slight shift to the southeast 
by late morning or mid-day. Wind speeds will be under 5 kts 
tonight and then 7 to 9 kts late Wednesday morning through early afternoon. 
Skies will remain clear. 


Przybylinski 


&& 


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


$$ 


Weather forecast office lsx 



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