Saint Charles, Missouri Weather Conditions

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Current Conditions

  • 22°
  • Overcast
  • Wind: ENE 7 mph
  • Humidity: 89%
  • Visibility: 10.0 miles
  • Dew Point: 19°
  • Pressure: 30.19 in. 0
  • Heat Index: 13

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Next 12 Hours

11  pm
2  am
5  am
8  am
11  am
Overcast
Overcast
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
23°
23°
20°
18°
22°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 26 °
  • Low: 21 °
  • Partly Cloudy
  • Friday
  • Overcast
  • High: 33 °
  • Low: 5 °
  • Overcast
  • Saturday
  • Partly Cloudy
  • High: 20 °
  • Low: 15 °
  • Partly Cloudy
  • Sunday
  • Snow Showers
  • High: 28 °
  • Low: 24 °
  • Snow Showers
  • Monday
  • Snow
  • High: 36 °
  • Low: 26 °
  • Snow

Forecast for Saint Charles, Missouri

Updated: 10:03 PM CST on January 10, 2016

  • Thursday

    Sunshine and clouds mixed. High 26F. Winds NE at 5 to 10 mph.

  • Thursday Night

    Cloudy skies. A few flurries or snow showers possible. Low 21F. Winds light and variable.

  • Friday

    Cloudy. High 33F. Winds NW at 10 to 20 mph.

  • Friday Night

    A mostly clear sky. Low near 5F. Winds NNW at 10 to 20 mph.

  • Saturday

    Intervals of clouds and sunshine. High around 20F. Winds NNE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy skies early will become overcast later during the night. Low near 15F. Winds E at 5 to 10 mph.

  • Sunday

    Cloudy skies early. A few snow showers developing later in the day. High 28F. Winds SE at 10 to 20 mph. Chance of snow 30%.

  • Sunday Night

    Cloudy with snow showers developing after midnight. Low 24F. Winds SE at 10 to 15 mph. Chance of snow 40%. Snow accumulations less than one inch.

  • Monday

    Snow during the morning will transition to snow showers during the afternoon. High 36F. Winds NNE at 5 to 10 mph. Chance of snow 60%. Snow accumulating 1 to 3 inches.

  • Monday Night

    Partly cloudy. Low 26F. Winds NW at 5 to 10 mph.

  • Tuesday

    Sunny, along with a few afternoon clouds. High 43F. Winds SSE at 10 to 15 mph.

  • Tuesday Night

    Partly cloudy skies. Low 31F. SSE winds shifting to W at 10 to 15 mph.

  • Wednesday

    A few clouds from time to time. High 49F. Winds WNW at 10 to 15 mph.

  • Wednesday Night

    Mostly clear skies. Low around 30F. Winds NNW at 5 to 10 mph.

  • Thursday

    Mostly sunny skies. High around 55F. Winds SSE at 10 to 20 mph.

  • Thursday Night

    A few clouds from time to time. Low 43F. Winds SSE at 10 to 20 mph.

  • Friday

    Partly cloudy early followed by mostly cloudy skies and a few showers later in the day. High 61F. Winds SSW at 10 to 20 mph. Chance of rain 30%.

  • Friday Night

    Overcast with rain showers at times. Low 41F. Winds WSW at 5 to 10 mph. Chance of rain 40%.

  • Saturday

    A shower or two possible early with partly cloudy skies in the afternoon. High 57F. Winds WNW at 10 to 15 mph. Chance of rain 30%.

  • Saturday Night

    Cloudy with a few showers. Low 36F. Winds N at 5 to 10 mph. Chance of rain 30%.

Severe Weather Alert Descriptions

 Local Storm Report 



02/10/2016 0530 PM

6 miles WSW of O'Fallon, St Charles County.

Snow m1.0 inch, reported by trained spotter.


            Storm total




02/10/2016 0601 PM

Weldon Spring, St Charles County.

Snow m0.8 inch, reported by NWS employee.


            Storm total




02/10/2016 0608 PM

Harvester, St Charles County.

Snow m0.8 inch, reported by amateur radio.


            Storm total




02/10/2016 0608 PM

Harvester, St Charles County.

Snow m0.8 inch, reported by amateur radio.


            Storm total





02/10/2016 0608 PM

Harvester, St Charles County.

Snow m0.8 inch, reported by amateur radio.


            Storm total





02/10/2016 0601 PM

Weldon Spring, St Charles County.

Snow m0.8 inch, reported by NWS employee.


            Storm total





02/10/2016 0530 PM

6 miles WSW of O'Fallon, St Charles County.

Snow m1.0 inch, reported by trained spotter.


            Storm total





02/10/2016 0126 PM

O'Fallon, St Charles County.

Snow m0.7 inch, reported by trained spotter.





02/10/2016 0115 PM

6 miles WSW of O'Fallon, St Charles County.

Snow m0.7 inch, reported by public.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: New Town St Charles, Saint Charles, MO

Updated: 12:17 AM CST

Temperature: 22.5 °F Dew Point: 20 °F Humidity: 88% Wind: WNW at 3.7 mph Pressure: 30.19 in Hourly Precipitation: - Windchill: 18 °F Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 12:18 AM CST

Temperature: 21.7 °F Dew Point: 18 °F Humidity: 85% Wind: NE at 2.7 mph Pressure: 29.48 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 12:16 AM CST

Temperature: 25.0 °F Dew Point: 19 °F Humidity: 78% Wind: North at - Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 12:18 AM CST

Temperature: 22.9 °F Dew Point: 20 °F Humidity: 88% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 12:18 AM CST

Temperature: 23.0 °F Dew Point: 18 °F Humidity: 80% Wind: ENE at 4.6 mph Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 12:18 AM CST

Temperature: 23.5 °F Dew Point: 20 °F Humidity: 88% Wind: South at 3.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Polestar Boating Center, St. Charles, MO

Updated: 12:18 AM CST

Temperature: 23.2 °F Dew Point: 20 °F Humidity: 89% Wind: ENE at 3.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 12:18 AM CST

Temperature: 23.0 °F Dew Point: 20 °F Humidity: 87% Wind: SSW at 1.1 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 12:18 AM CST

Temperature: 22.0 °F Dew Point: 16 °F Humidity: 79% Wind: SSW at 4.0 mph Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 17 °F Graphs

Location: Earth City, Earth City, MO

Updated: 1:17 AM EST

Temperature: 23.8 °F Dew Point: 20 °F Humidity: 86% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

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

Updated: 12:18 AM CST

Temperature: 22.6 °F Dew Point: 20 °F Humidity: 88% Wind: East at 5.4 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 16 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 12:18 AM CST

Temperature: 23.5 °F Dew Point: 20 °F Humidity: 85% Wind: NE at 2.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Spencer Creek, Saint Peters, MO

Updated: 12:18 AM CST

Temperature: 24.3 °F Dew Point: 17 °F Humidity: 73% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 12:04 AM CST

Temperature: 22.9 °F Dew Point: 10 °F Humidity: 57% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Tanglewood, Saint Peters, MO

Updated: 12:18 AM CST

Temperature: 23.4 °F Dew Point: 17 °F Humidity: 77% Wind: NNE at 2.2 mph Pressure: 29.59 in Hourly Precipitation: - Windchill: 23 °F Graphs

Location: Spencer Valley, Saint Peters, MO

Updated: 12:07 AM CST

Temperature: 23.8 °F Dew Point: 21 °F Humidity: 87% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Riverside at Albers Pointe, Florissant, MO

Updated: 12:18 AM CST

Temperature: 21.2 °F Dew Point: 18 °F Humidity: 88% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 21 °F Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 12:03 AM CST

Temperature: 22.8 °F Dew Point: 20 °F Humidity: 87% Wind: NNW at 2.2 mph Pressure: 30.17 in Hourly Precipitation: - Windchill: 23 °F Graphs

Location: Saint Peters, Saint Peters, MO

Updated: 12:18 AM CST

Temperature: 22.6 °F Dew Point: 20 °F Humidity: 89% Wind: North at 2.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Rule Place Court, Maryland Heights, MO

Updated: 12:18 AM CST

Temperature: 24.3 °F Dew Point: 20 °F Humidity: 83% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Windchill: 24 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 12:17 AM CST

Temperature: 23.9 °F Dew Point: 21 °F Humidity: 87% Wind: SE at 3.0 mph Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 12:18 AM CST

Temperature: 24.1 °F Dew Point: 17 °F Humidity: 75% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 12:06 AM CST

Temperature: 24.2 °F Dew Point: 21 °F Humidity: 87% Wind: NNE at 3.0 mph Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Woodcliff, Saint Charles, MO

Updated: 12:17 AM CST

Temperature: 23.0 °F Dew Point: 20 °F Humidity: 88% Wind: Calm Pressure: 29.78 in Hourly Precipitation: - Windchill: 23 °F Graphs

Location: Park Charles South, Saint Peters, MO

Updated: 12:06 AM CST

Temperature: 24.1 °F Dew Point: 18 °F Humidity: 82% Wind: North at - Pressure: 30.21 in Hourly Precipitation: - Windchill: 24 °F Graphs

Location: Snow Hill Drive, Saint Peters, MO

Updated: 12:11 AM CST

Temperature: 24.1 °F Dew Point: 19 °F Humidity: 82% Wind: North at - Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Fox Lake Meadows, Florissant, MO

Updated: 12:06 AM CST

Temperature: 21.4 °F Dew Point: 18 °F Humidity: 86% Wind: ENE at 3.7 mph Pressure: 30.10 in Hourly Precipitation: - Windchill: 16 °F Graphs

Location: Jost Farm, Florissant, MO

Updated: 12:15 AM CST

Temperature: 21.7 °F Dew Point: 12 °F Humidity: 65% Wind: East at 3.1 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 12:11 AM CST

Temperature: 22.6 °F Dew Point: 19 °F Humidity: 86% Wind: ENE at 1.1 mph Pressure: 29.93 in Hourly Precipitation: - Windchill: 23 °F Graphs

Location: Starrco - Maryland Heights Mo, Maryland Heights, MO

Updated: 12:08 AM CST

Temperature: 23.0 °F Dew Point: 20 °F Humidity: 88% Wind: ENE at 2.7 mph Pressure: 30.00 in Hourly Precipitation: - Windchill: 23 °F Graphs

Location: Carriage Cove Court, Saint Charles, MO

Updated: 12:17 AM CST

Temperature: 23.0 °F Dew Point: 17 °F Humidity: 77% Wind: North at - Pressure: 30.06 in Hourly Precipitation: - Windchill: 23 °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 
1129 PM CST Wednesday Feb 10 2016 


Update: 
issued at 930 PM CST Wed Feb 10 2016 


As expected...snow bands primarilly forcied via mesoscale 
processes have weakened dramatically with only some flurries 
remaining. For the rest of tonight...a cloudy sky along with 
light/variable winds are expected. Exception could be far southern 
and western County Warning Area which will be on the very edge of the cloud deck. 
In these areas...had to drop low temperatures a few degrees as 
temperatures have dropped fairly quickly under a partly cloudy to 
mostly clear sky. 


Gosselin 


&& 


Short term: (through late tonight) 
issued at 339 PM CST Wed Feb 10 2016 


Bands of warm advection snow are moving thou eastern Missouri and 
southern Illinois. Amounts ranging from a little more than a 
dusting up to around 1.5 inches have been reported with the bands. 
Rap may have been the best model to handle this system today, but 
even it wasn't far enough east with the accumulating precip earlier 
today. Regardless...current thinking is that the western edge of 
the accumulating snow will reach the Mississippi River by around 00z 
this evening. The snow also looks to be deteriorating from the 
northwest although there are still a few reports of light snow in 
Iowa. With the rap, NAM, and GFS continuing to show some pretty 
impressive warm advection and low level frontogenesis after 00z, I 
can't rule out additional (very) light accumulations this evening 
along and east of the Mississippi. Anything more than 1/2 inch 
looks very unlikely and probably confined to our southeastern 
counties. Any lingering precipitation should end by midnight. 


Carney 


Long term: (thursday through next wednesday) 
issued at 339 PM CST Wed Feb 10 2016 


Dry and continued cold weather on Thursday as a surface ridge drops 
southeastward through eastern MO and Illinois with continued northwesterly 
mid-upper level flow. A northwest flow shortwave will bring some 
light snow, mainly to northeast MO and west central Illinois Thursday 
night and Friday morning. It appears that accumulations will be 
light at less than one inch due to the progressive nature of the 
shortwave along with limited moisture. Most areas should just get a 
quick dusting of light, powdery snow. Slightly warmer temperatures 
can be expected on Friday, but this will be short lived as another 
cold front drops southeastward through our forecast area on Friday 
with a strong 1040 mb surface ridge building into the area behind 
it. Temperatures may actually begin to fall in northeast MO Friday 
afternoon after frontal passage. Northwesterly winds will 
strengthen Friday afternoon and evening after the cold front passes 
through due to a tightening surface pressure gradient. It appears 
that this will be a dry frontal passage, but much colder 
temperatures can be expected Friday night and Saturday with very 
cold wind chillls possible Friday night. Warm air advection ahead 
of a northern stream shortwave may bring some snow to northeast MO 
and west central Illinois Saturday night. The European model (ecmwf) model appears a 
little too quick bringing precipitation into the area already by 
Saturday afternoon with an initially very dry air boundary layer on 
the backside of the strong surface ridge. Model solutions continue 
to vary from the Sunday through Monday period. The GFS model 
spreads snow through the area Sunday and Sunday evening ahead of a 
northern stream shortwave. The European model (ecmwf) model is weaker and quicker 
with the northern stream shortwave and keeps most of the 
precipitation north of our forecast area on Sunday, but then 
develops a strong southern stream shortwave and associated surface 
low which brings snow to the southern half of the forecast area 
Sunday night and Monday morning. With theses model discrepancies, 
for now will just include chance pops for the forecast area Sunday 
and Sunday night. Warmer temperatures are expected for Tuesday and 
Wednesday as the upper level trough shifts east of the region with 
upper level heights rising and surface winds becoming southerly. The 
European model (ecmwf) model is not as warm for Wednesday compared to the GFS as it 
brings another cold front southeastward through our area as an upper 
level trough moves through the Great Lakes region. The GFS solution 
does not have either the upper level trough or the cold front. For 
now will keep with the warming trend for Monday through Wednesday. 


Gks 


&& 


Aviation: (for the 06z tafs through 06z Thursday night) 
issued at 1125 PM CST Wed Feb 10 2016 


VFR ceilings with light easterly winds expected through the day on 
Thursday. Another clipper system will dive southeast Thursday 
evening bringing another round of snow into KUIN so have IFR 
visbys late Thursday evening. Kcou is expected to be too far SW 
and the Metro terminals closer to the southwestern edge of the 
light snow. 




Specifics for kstl: 


VFR conditions expected heading into Thursday evening. Lambert 
will be near southwestern edge of light snow coming in from the 
northwest with the next clipper system. For now...have a vcsh 
group indicating the possibility of light snow at the terminal. 
Regardless...appears a period of MVFR ceilings is likely by late 
Thursday night. 


Gosselin 


&& 


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


$$ 


Weather forecast office lsx 






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