Saint Charles, Missouri Weather Conditions

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Current Conditions

  • 37°
  • Clear
  • Wind: ESE 12 mph
  • Humidity: 62%
  • Visibility: 10.0 miles
  • Dew Point: 25°
  • Pressure: 30.27 in. 0
  • Heat Index: 29

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Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
37°
33°
32°
32°
34°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Chance of Rain
  • High: 58 °
  • Low: 36 °
  • Chance of Rain
  • Monday
  • Clear
  • High: 66 °
  • Low: 43 °
  • Clear
  • Tuesday
  • Clear
  • High: 71 °
  • Low: 43 °
  • Clear
  • Wednesday
  • Clear
  • High: 72 °
  • Low: 57 °
  • Clear
  • Thursday
  • Chance of a Thunderstorm
  • High: 72 °
  • Low: 53 °
  • Chance of T-Storms

Forecast for Saint Charles, Missouri

Updated: 4:19 PM CDT on January 28, 2015

  • Saturday

    Clear. Lows overnight in the low 30s.

  • Saturday Night

    Clear skies. Low 31F. Winds SE at 10 to 15 mph.

  • Sunday

    Considerable cloudiness with occasional rain showers. Thunder possible. High 58F. Winds SSW at 15 to 25 mph. Chance of rain 50%.

  • Sunday Night

    Some clouds early will give way to generally clear conditions overnight. Low 36F. Winds NW at 5 to 10 mph.

  • Monday

    Except for a few afternoon clouds, mainly sunny. High 66F. Winds W at 10 to 15 mph.

  • Monday Night

    Partly cloudy. Low 43F. Winds SSW at 5 to 10 mph.

  • Tuesday

    Mainly sunny. High 71F. Winds WNW at 10 to 15 mph.

  • Tuesday Night

    Clear skies. Low 43F. Winds ENE at 5 to 10 mph.

  • Wednesday

    Sunshine and some clouds. High 72F. Winds SE at 10 to 20 mph.

  • Wednesday Night

    Variable clouds with thunderstorms, especially during the evening. Low 57F. Winds SSE at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Partly to mostly cloudy skies with scattered thunderstorms in the morning. High 72F. Winds S at 10 to 15 mph. Chance of rain 50%.

  • Thursday Night

    Periods of rain. Low 53F. Winds ESE at 5 to 10 mph. Chance of rain 70%. Rainfall near a quarter of an inch.

  • Friday

    Cloudy with periods of rain. Becoming windy late. High 63F. SSE winds shifting to NW at 20 to 30 mph. Chance of rain 80%. Rainfall near a quarter of an inch.

  • Friday Night

    Partly cloudy skies. Low 38F. Winds NNW at 10 to 20 mph.

  • Saturday

    Mostly sunny skies. High 58F. Winds N at 10 to 15 mph.

  • Saturday Night

    Partly cloudy skies. Low 37F. Winds E at 5 to 10 mph.

  • Sunday

    Mostly sunny skies. High 59F. Winds SE at 10 to 15 mph.

  • Sunday Night

    Partly cloudy skies early giving way to a few showers after midnight. Low near 45F. Winds SE at 5 to 10 mph. Chance of rain 30%.

  • Monday

    Partly cloudy skies early. A few showers developing later in the day. High around 65F. Winds S at 15 to 25 mph. Chance of rain 40%.

  • Monday Night

    Thunderstorms during the evening followed by occasional showers overnight. Low 52F. Winds S at 10 to 20 mph. Chance of rain 80%.

  • Tuesday

    Cloudy with occasional rain showers. High 68F. Winds SSW at 10 to 15 mph. Chance of rain 60%.

  • Tuesday Night

    Cloudy with showers. Low 48F. Winds SSW at 5 to 10 mph. Chance of rain 50%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Huntington Downs, Saint Charles, MO

Updated: 8:00 PM CDT

Temperature: 44.2 °F Dew Point: 22 °F Humidity: 40% Wind: North at - Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 8:01 PM CDT

Temperature: 40.8 °F Dew Point: 18 °F Humidity: 39% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 8:02 PM CDT

Temperature: 40.5 °F Dew Point: 15 °F Humidity: 35% Wind: East at 6.9 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 8:02 PM CDT

Temperature: 41.5 °F Dew Point: 18 °F Humidity: 39% Wind: ESE at 2.0 mph Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Polestar Boating Center, St. Charles, MO

Updated: 8:02 PM CDT

Temperature: 39.1 °F Dew Point: 27 °F Humidity: 61% Wind: ESE at 3.0 mph Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 8:02 PM CDT

Temperature: 40.6 °F Dew Point: 19 °F Humidity: 41% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 8:02 PM CDT

Temperature: 40.5 °F Dew Point: 21 °F Humidity: 45% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.01 in Windchill: 40 °F Graphs

Location: Earth City, Earth City, MO

Updated: 8:58 PM EDT

Temperature: 42.1 °F Dew Point: 19 °F Humidity: 40% Wind: East at 1.0 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

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

Updated: 8:02 PM CDT

Temperature: 41.4 °F Dew Point: 11 °F Humidity: 28% Wind: East at 7.4 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 8:02 PM CDT

Temperature: 39.6 °F Dew Point: 18 °F Humidity: 40% Wind: ESE at 1.0 mph Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 8:01 PM CDT

Temperature: 42.3 °F Dew Point: 3 °F Humidity: 19% Wind: Calm Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 7:54 PM CDT

Temperature: 39.9 °F Dew Point: 19 °F Humidity: 42% Wind: ESE at 1.7 mph Pressure: 30.28 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: St. Peters, St. Peters, MO

Updated: 8:02 PM CDT

Temperature: 41.2 °F Dew Point: 20 °F Humidity: 43% Wind: South at 2.9 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 8:02 PM CDT

Temperature: 41.2 °F Dew Point: 17 °F Humidity: 38% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 7:47 PM CDT

Temperature: 41.7 °F Dew Point: 23 °F Humidity: 47% Wind: SE at 3.0 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Maryland Heights, MO

Updated: 7:57 PM CDT

Temperature: 41.8 °F Dew Point: 21 °F Humidity: 43% Wind: SE at 3.0 mph Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Jost Farm, Florissant, MO

Updated: 8:00 PM CDT

Temperature: 39.0 °F Dew Point: 21 °F Humidity: 48% Wind: East at 3.1 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 8:01 PM CDT

Temperature: 40.3 °F Dew Point: 20 °F Humidity: 43% Wind: ESE at 2.7 mph Pressure: 30.02 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 8:01 PM CDT

Temperature: 41.0 °F Dew Point: 21 °F Humidity: 45% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

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

Updated: 7:54 PM CDT

Temperature: 40.1 °F Dew Point: 19 °F Humidity: 42% Wind: SE at 2.7 mph Pressure: 30.17 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: Carriage Cove Court, Saint Charles, MO

Updated: 8:01 PM CDT

Temperature: 40.8 °F Dew Point: 28 °F Humidity: 61% Wind: North at - Pressure: 30.16 in Hourly Precipitation: - Windchill: 41 °F Graphs

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

Updated: 8:02 PM CDT

Temperature: 40.2 °F Dew Point: 23 °F Humidity: 49% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 8:02 PM CDT

Temperature: 40.5 °F Dew Point: 22 °F Humidity: 48% Wind: South at 2.2 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 8:01 PM CDT

Temperature: 40.6 °F Dew Point: 20 °F Humidity: 43% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: APRSWXNET Berkeley MO US, Woodson Terrace, MO

Updated: 4:46 PM CDT

Temperature: 45 °F Dew Point: 14 °F Humidity: 28% Wind: East at 6 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 8:00 PM CDT

Temperature: 45.0 °F Dew Point: 20 °F Humidity: 37% Wind: North at - Pressure: 30.26 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 8:02 PM CDT

Temperature: 40.8 °F Dew Point: 20 °F Humidity: 43% Wind: East at 3.0 mph Pressure: 29.62 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 7:58 PM CDT

Temperature: 41.5 °F Dew Point: 22 °F Humidity: 45% Wind: SSE at 2.7 mph Pressure: 30.15 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Public Works Department Building, OFallon, MO

Updated: 8:00 PM CDT

Temperature: 42.3 °F Dew Point: 20 °F Humidity: 41% Wind: East at 3.0 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

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

Updated: 7:50 PM CDT

Temperature: 41.2 °F Dew Point: 20 °F Humidity: 43% Wind: East at 5.3 mph Pressure: 30.10 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 8:02 PM CDT

Temperature: 38.4 °F Dew Point: 19 °F Humidity: 46% Wind: SE at 3.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 8:01 PM CDT

Temperature: 40.6 °F Dew Point: 18 °F Humidity: 39% Wind: NNE at 3.5 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

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

Updated: 8:02 PM CDT

Temperature: 43.2 °F Dew Point: 19 °F Humidity: 37% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 43 °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 
633 PM CDT Sat Mar 28 2015 


Short term: (through late tonight) 
issued at 345 PM CDT Sat Mar 28 2015 


Quiet weather tonight under shortwave ridging ahead of the next 
shortwave trof. Should see temperatures fall off fairly quickly 
this evening under a clear/mostly clear sky and light wind. 
However, think the temperature drop will be arrested overnight by 
increasing mid and high clouds ahead of the shortwave and also 
increasing southerly wind as the surface pressure gradient tightens 
ahead of the surface wave. Stuck pretty close to blended guidance 
for lows tonight, but those lows may occur a few hours before 
sunrise, with perhaps nearly steady or slowly rising temperatures 
through 12z. 


Carney 


Long term: (sunday through next saturday) 
issued at 345 PM CDT Sat Mar 28 2015 


Northwest upper level flow will prevail thru Tuesday across our 
region, with mostly quiet wx and a pair of weak cold fronts dropping 
thru. 


The only sensible wx forecast for this stretch is for Sunday, as an 
upper level disturbance edges our area to the north and west with 
strong warm air advection on the front-end. A band or two of showers is expected 
to form from this as a result, with the highest probs to the north 
and east of stl where likelys pops were retained, but more scattered 
coverage heading into central MO and the Ozarks. 


Otherwise, temps should warm up pretty well Sunday despite clouds 
and rain, with at or above MOS for most sites forecasted, which 
would result in 50s most areas with low 60s in central MO. 


Despite a cold front moving thru late Sunday, temps on Monday are 
expected to be warmer with flow already backed from the SW again. 
The higher MOS values for Max temps favored with decent sunshine 
anticipated. 


This warming trend should continue into Tuesday with another front 
coming down, but not until afternoon. Did not go as high as the mex 
MOS values, which would have had more confidence in them with a 
slightly later fropa, but nevertheless, went with Max temps in the 
low 70s for most areas. There is the potential for a low confidence 
shower event late Monday night into Tuesday associated with warm air advection, but 
this is not nearly as strong as the Sunday event. For now 
maintained the dry forecast. 


The Tuesday front will then linger thru much of the second half of 
the work week as upper flow shifts to more from the W-SW. 
Persistent shower and thunderstorm chances will reflect this period 
with mild temps. Some room to go even higher on temps south of the 
front Wednesday and Thursday if confidence can be increased in rain 
holding off, but very little skill in those specifics this far out. 


Temps expected to return to below normal following this wet period 
on Saturday with another cold front moving thru and a bit better 
cool airmass moving in. 


Tes 
&& 


Aviation: (for the 00z tafs through 00z Sunday evening) 
issued at 633 PM CDT Sat Mar 28 2015 


Surface ridge to continue sliding to the southeast away from 
forecast area ahead of next weather system. Southeast winds to 
veer to the south by daybreak and pickup with gusts to near 25kts 
at times. Will see some light rain possible mainly along and east 
of Mississippi River. Coverage will be scattered so for now just 
have vcnty shower mention at KUIN and Metro area tafs with low end 
VFR cigs. Then front to move through during the afternoon hours 
with winds veering to the west behind the front and gradually 
diminishing. 


Specifics for kstl: 
surface ridge to continue sliding to the southeast away from 
forecast area ahead of next weather system. Southeast winds to 
veer to the south by 15z Sunday and pickup with gusts to near 25kts 
at times. Will see some light rain possible mainly along and east 
of Mississippi River. Coverage will be scattered so for now just 
have vcnty shower mention after 19z Sunday with low end VFR cigs. 
Then front to move through by 23z Sunday with winds veering to 
the west behind the front and gradually diminishing. 


Byrd 
&& 


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


$$ 
Weather forecast office lsx 












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