Saint Charles, Missouri Weather Conditions

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Current Conditions

  • 70°
  • Scattered Clouds
  • Wind: East 4 mph
  • Humidity: 84%
  • Visibility: 10.0 miles
  • Dew Point: 65°
  • Pressure: 30.01 in. +

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Overcast
Overcast
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Overcast
Overcast
69°
68°
71°
80°
84°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Overcast
  • High: 87 °
  • Low: 65 °
  • Overcast
  • Sunday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 67 °
  • Chance of T-Storms
  • Monday
  • Clear
  • High: 91 °
  • Low: 67 °
  • Clear
  • Tuesday
  • Clear
  • High: 92 °
  • Low: 68 °
  • Clear
  • Wednesday
  • Clear
  • High: 93 °
  • Low: 68 °
  • Clear

Forecast for Saint Charles, Missouri

Updated: 10:03 PM CDT on January 28, 2015

  • Saturday

    Overcast. A stray shower or thunderstorm is possible. High 87F. Winds S at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. A stray shower or thunderstorm is possible. Low near 65F. Winds light and variable.

  • Sunday

    Mostly sunny in the morning then increasing clouds with some scattered thunderstorms later in the day. High 88F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Sunday Night

    Variable clouds with scattered thunderstorms. Low 67F. Winds light and variable. Chance of rain 40%.

  • Monday

    Mostly sunny skies. High 91F. Winds SSE at 5 to 10 mph.

  • Monday Night

    Clear skies. Low 67F. Winds SE at 5 to 10 mph.

  • Tuesday

    Plentiful sunshine. High 92F. Winds S at 5 to 10 mph.

  • Tuesday Night

    Clear. Low 68F. Winds SSE at 5 to 10 mph.

  • Wednesday

    Sunshine and some clouds. High 93F. Winds S at 5 to 10 mph.

  • Wednesday Night

    Clear. Low 68F. Winds light and variable.

  • Thursday

    Mainly sunny. High 93F. Winds SSE at 5 to 10 mph.

  • Thursday Night

    Clear. Low 68F. Winds light and variable.

  • Friday

    Mainly sunny. High 91F. Winds ESE at 5 to 10 mph.

  • Friday Night

    Clear. Low 68F. Winds light and variable.

  • Saturday

    Sunny. High 92F. Winds ENE at 5 to 10 mph.

  • Saturday Night

    Clear skies. Low 68F. Winds E at 5 to 10 mph.

  • Sunday

    A mainly sunny sky. High 91F. Winds E at 5 to 10 mph.

  • Sunday Night

    A few isolated thunderstorms developing late. Low 69F. Winds E at 5 to 10 mph. Chance of rain 30%.

  • Monday

    Widely scattered showers or a thunderstorm early. Then partly cloudy. High near 90F. Winds SE at 5 to 10 mph. Chance of rain 30%.

  • Monday Night

    Partly cloudy skies early giving way to a few showers after midnight. Low 69F. Winds ESE at 5 to 10 mph. Chance of rain 30%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: New Town St Charles, Saint Charles, MO

Updated: 1:01 AM CDT

Temperature: 72.9 °F Dew Point: 64 °F Humidity: 75% Wind: South at 1.7 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 1:05 AM CDT

Temperature: 73.2 °F Dew Point: 63 °F Humidity: 69% Wind: North at - Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 1:04 AM CDT

Temperature: 71.8 °F Dew Point: 65 °F Humidity: 79% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 1:05 AM CDT

Temperature: 72.2 °F Dew Point: 64 °F Humidity: 75% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 1:05 AM CDT

Temperature: 72.4 °F Dew Point: 65 °F Humidity: 78% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Polestar Boating Center, St. Charles, MO

Updated: 1:05 AM CDT

Temperature: 70.9 °F Dew Point: 64 °F Humidity: 80% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 1:05 AM CDT

Temperature: 72.3 °F Dew Point: 64 °F Humidity: 76% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 1:05 AM CDT

Temperature: 73.3 °F Dew Point: 64 °F Humidity: 74% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

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

Updated: 1:05 AM CDT

Temperature: 72.1 °F Dew Point: 65 °F Humidity: 77% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 1:05 AM CDT

Temperature: 71.1 °F Dew Point: 65 °F Humidity: 78% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 1:03 AM CDT

Temperature: 72.3 °F Dew Point: 54 °F Humidity: 53% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Spencer Valley, Saint Peters, MO

Updated: 12:58 AM CDT

Temperature: 72.8 °F Dew Point: 64 °F Humidity: 74% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Alber Pointe Drive, Florissant, MO

Updated: 1:05 AM CDT

Temperature: 72.1 °F Dew Point: 64 °F Humidity: 76% Wind: North at - Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Riverside at Albers Pointe, Florissant, MO

Updated: 1:04 AM CDT

Temperature: 72.1 °F Dew Point: 62 °F Humidity: 76% Wind: North at - Pressure: 29.99 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 1:03 AM CDT

Temperature: 71.1 °F Dew Point: 63 °F Humidity: 75% Wind: Calm Pressure: 30.00 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: Saint Peters, Saint Peters, MO

Updated: 1:05 AM CDT

Temperature: 72.3 °F Dew Point: 64 °F Humidity: 74% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Rule Place Court, Maryland Heights, MO

Updated: 1:05 AM CDT

Temperature: 72.7 °F Dew Point: 63 °F Humidity: 71% Wind: North at - Pressure: 29.85 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 1:05 AM CDT

Temperature: 71.0 °F Dew Point: 65 °F Humidity: 82% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 1:05 AM CDT

Temperature: 72.1 °F Dew Point: 65 °F Humidity: 78% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 12:56 AM CDT

Temperature: 71.8 °F Dew Point: 65 °F Humidity: 79% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Maryland Heights, MO

Updated: 1:01 AM CDT

Temperature: 73.7 °F Dew Point: 64 °F Humidity: 73% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Woodcliff, Saint Charles, MO

Updated: 12:59 AM CDT

Temperature: 70.9 °F Dew Point: 70 °F Humidity: 98% Wind: Calm Pressure: 29.65 in Hourly Precipitation: - Heat Index: - Graphs

Location: Park Charles South, Saint Peters, MO

Updated: 12:46 AM CDT

Temperature: 72.9 °F Dew Point: 63 °F Humidity: 76% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Fox Lake Meadows, Florissant, MO

Updated: 12:59 AM CDT

Temperature: 72.1 °F Dew Point: 62 °F Humidity: 71% Wind: Calm Pressure: 29.97 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 12:58 AM CDT

Temperature: 71.1 °F Dew Point: 64 °F Humidity: 77% Wind: Calm Pressure: 29.79 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: Carriage Cove Court, Saint Charles, MO

Updated: 1:05 AM CDT

Temperature: 69.8 °F Dew Point: 69 °F Humidity: 96% Wind: North at - Pressure: 29.93 in Hourly Precipitation: - Heat Index: - Graphs

Location: Old Farm Estates, St. Louis, MO

Updated: 1:05 AM CDT

Temperature: 71.7 °F Dew Point: 66 °F Humidity: 81% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

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

Updated: 1:05 AM CDT

Temperature: 72.6 °F Dew Point: 65 °F Humidity: 76% Wind: Calm Pressure: 25.61 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 1:05 AM CDT

Temperature: 72.1 °F Dew Point: 64 °F Humidity: 76% Wind: Calm Pressure: 29.47 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 1:05 AM CDT

Temperature: 71.2 °F Dew Point: 64 °F Humidity: 79% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 1:05 AM CDT

Temperature: 73.6 °F Dew Point: 64 °F Humidity: 71% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 1:00 AM CDT

Temperature: 71.2 °F Dew Point: 65 °F Humidity: 82% Wind: ESE at 2.2 mph Pressure: 29.92 in Hourly Precipitation: - Heat Index: 71 °F Graphs

Location: Public Works Department Building, OFallon, MO

Updated: 1:05 AM CDT

Temperature: 71.7 °F Dew Point: 64 °F Humidity: 78% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 73 °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 
1216 am CDT Sat Aug 29 2015 


Short term: (through late tonight) 
issued at 315 PM CDT Friday Aug 28 2015 


Water vapor imagery shows that a shortwave trough is moving slowly 
east across Missouri at this hour. Latest runs of the rap suggest 
that it will take all evening for this first shortwave to reach 
halfway across the County Warning Area while a second shortwave will enter western 
Missouri behind it later tonight. Low level moisture convergence 
will increase across eastern Missouri by later this evening as low 
level jet veers and increases in speed slightly. This should cause 
an increase in coverage in scattered showers and thunderstorms by 
late evening and overnight over the region because of the forcing 
from the shortwaves and the moisture convergence. The 1km 
reflectivity from the cams depicts this pretty well. 


MOS lows tonight look reasonable given the increasing dewpoints 
ahead of the cold front currently over the Central Plains. 


Britt 


Long term: (saturday through next friday) 
issued at 316 PM CDT Friday Aug 28 2015 


At least scattered showers and thunderstorms can be expected on 
Saturday and Saturday evening as an upper level trough moves 
slowly southeastward through our area. It now appears that the 
cold front will only make it into northeast MO and west central Illinois 
before gradually dissipating. Only slight cooling is expected 
across northeast MO and west central Illinois Saturday and Saturday 
night with the rest of the area slightly warmer and more humid 
despite the cloud cover on Saturday with mainly a weak southerly 
flow. Although the chance of precipitation will lessen by late 
Saturday night and Sunday...there may still be at least isolated 
showers/storms across mainly southeast MO and southwest Illinois as the 
weakening upper level trough...shear axis moves only slowly 
southeastward. A wamer period of weather is forecast for the next 
work week due to persistent southerly surface/low level flow with 
the surface/850 mb ridge east/southeast of our area...and at 
least upper level ridging across northwest MO. Will keep the 
remainder of the forecast dry for now...although could not rule 
out a few showers/storms mainly during the afternoon and early 
evening hours as the models continue to depict some weak middle-upper 
level troughing...shear axis across mainly southeast MO and 
southwest Illinois. 


Gks 


&& 


Aviation: (for the 06z tafs through 06z Saturday night) 
issued at 1208 am CDT Sat Aug 29 2015 


Specifics for kcou, kuin: rain showers will continue to increase 
in coverage overnight as a couple of upper level disturbances 
approach the region. Thunderstorms are possible at KUIN during the 
afternoon, but current models suggest the precipitation would be 
east of kcou by then. Winds will remain southeasterly to 
southerly, then become light/variable in vicinity of a weak cold front. 


Specifics for kstl, ksus, kcps: the incoming shift noticed some 
light rain on their commute to the office in Weldon Spring, so it 
looks like at least some of those weaker echoes on radar are 
producing rainfall. Added vcsh to ksus and kstl for the next few 
hours based on the current radar trends. Showers should become 
more widespread with time as a couple of upper level disturbances 
move across the area. Thunderstorms are possible during the 
afternoon. Winds will remain southeasterly to southerly, then 
become light/variable in vicinity of a weak cold front. 


Kanofsky 


&& 


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


$$ 


Weather forecast office lsx 



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