Saint Charles, 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

  • 62°
  • Clear
  • Wind: Calm
  • Humidity: 65%
  • Visibility: 10.0 miles
  • Dew Point: 50°
  • Pressure: 30.01 in. 0

Select a Section

Click a section below for more information.

Next 12 Hours

1  am
4  am
7  am
10  am
1  pm
Overcast
Overcast
Partly Cloudy
Partly Cloudy
Rain Showers
Rain Showers
Thunderstorm
T-storms
Thunderstorm
T-storms
64°
57°
61°
64°
70°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Thunderstorm
  • High: 73 °
  • Low: 52 °
  • T-Storms
  • Tuesday
  • Clear
  • High: 64 °
  • Low: 43 °
  • Clear
  • Wednesday
  • Clear
  • High: 70 °
  • Low: 50 °
  • Clear
  • Thursday
  • Chance of a Thunderstorm
  • High: 73 °
  • Low: 52 °
  • Chance of T-Storms
  • Friday
  • Clear
  • High: 81 °
  • Low: 41 °
  • Clear

Forecast for Saint Charles, Missouri

Updated: 10:00 PM CDT on April 20, 2014

  • Monday

    Overcast with thunderstorms and rain showers. High of 73F. Winds from the SW at 5 to 10 mph. Chance of rain 70%.

  • Monday Night

    Overcast with thunderstorms and rain showers. Low of 52F. Winds from the NW at 5 to 15 mph.

  • Tuesday

    Clear. High of 64F. Winds from the NNW at 10 to 15 mph.

  • Tuesday Night

    Clear. Low of 43F. Winds from the NNE at 5 to 15 mph.

  • Wednesday

    Clear in the morning, then partly cloudy. High of 70F. Winds from the SE at 10 to 15 mph.

  • Wednesday Night

    Partly cloudy. Low of 50F. Winds from the SSE at 10 to 15 mph.

  • Thursday

    Partly cloudy with a chance of a thunderstorm and rain. High of 73F. Winds from the SSW at 10 to 15 mph. Chance of rain 50% with rainfall amounts near 0.4 in. possible.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 52F. Winds from the WSW at 5 to 10 mph.

  • Friday

    Clear. High of 81F. Winds from the WNW at 5 to 15 mph.

  • Friday Night

    Clear. Low of 41F. Winds from the North at 5 to 10 mph.

  • Saturday

    Partly cloudy. High of 79F. Winds from the NNE at 10 to 15 mph.

  • Saturday Night

    Partly cloudy. Low of 37F. Winds from the ENE at 5 to 10 mph.

  • Sunday

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

  • Sunday Night

    Partly cloudy. Low of 41F. Winds from the East at 10 to 15 mph.

  • Monday

    Partly cloudy with a chance of a thunderstorm. High of 68F. Winds from the ESE at 5 to 15 mph. Chance of rain 40%.

  • Monday Night

    Partly cloudy. Low of 37F. Winds from the ESE at 5 to 10 mph.

  • Tuesday

    Mostly cloudy. High of 64F. Winds less than 5 mph.

  • Tuesday Night

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

  • Wednesday

    Clear. High of 64F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 50F. Winds less than 5 mph.

  • Thursday

    Clear. High of 66F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 50F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Stable Ridge Estates, Saint Charles, MO

Updated: 2:03 AM CDT

Temperature: 68.9 °F Dew Point: 50 °F Humidity: 51% Wind: ENE at 1.6 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Lindenwood, St. Charles, MO

Updated: 2:04 AM CDT

Temperature: 67.2 °F Dew Point: 44 °F Humidity: 44% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 2:05 AM CDT

Temperature: 67.4 °F Dew Point: 42 °F Humidity: 40% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Historic Saint Charles, Saint Charles, MO

Updated: 2:05 AM CDT

Temperature: 69.3 °F Dew Point: 47 °F Humidity: 45% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Polestar Boating Center, St. Charles, MO

Updated: 2:05 AM CDT

Temperature: 66.0 °F Dew Point: 48 °F Humidity: 53% Wind: East at 1.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Riverwood Place, Florissant, MO

Updated: 2:05 AM CDT

Temperature: 67.9 °F Dew Point: 48 °F Humidity: 48% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Earth City, Earth City, MO

Updated: 2:56 AM EDT

Temperature: 69.7 °F Dew Point: 45 °F Humidity: 41% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: West Drive, St. Peters, MO

Updated: 2:05 AM CDT

Temperature: 66.6 °F Dew Point: 46 °F Humidity: 45% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Tanglewood, Saint Peters, MO

Updated: 2:05 AM CDT

Temperature: 66.6 °F Dew Point: 45 °F Humidity: 46% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Saint Peters, MO

Updated: 2:05 AM CDT

Temperature: 66.8 °F Dew Point: 46 °F Humidity: 47% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Danielle Downs, St. Peters, MO

Updated: 2:05 AM CDT

Temperature: 68.5 °F Dew Point: 44 °F Humidity: 43% Wind: South at 1.6 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: St. Peters, St. Peters, MO

Updated: 2:00 AM CDT

Temperature: 67.9 °F Dew Point: 45 °F Humidity: 43% Wind: SW at 1.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 1:55 AM CDT

Temperature: 67.5 °F Dew Point: 46 °F Humidity: 46% Wind: West at 1.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Harvester, St. Charles, MO

Updated: 1:56 AM CDT

Temperature: 69.2 °F Dew Point: 46 °F Humidity: 44% Wind: SE at 2.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Maryland Heights, MO

Updated: 2:02 AM CDT

Temperature: 66.7 °F Dew Point: 47 °F Humidity: 49% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Jost Farm, Florissant, MO

Updated: 2:05 AM CDT

Temperature: 68.5 °F Dew Point: 50 °F Humidity: 51% Wind: SW at 1.6 mph Pressure: 29.76 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 1:58 AM CDT

Temperature: 64.8 °F Dew Point: 44 °F Humidity: 47% Wind: Calm Pressure: 29.94 in Hourly Precipitation: - Heat Index: - Graphs

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

Updated: 2:05 AM CDT

Temperature: 66.3 °F Dew Point: 50 °F Humidity: 55% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 2:05 AM CDT

Temperature: 66.0 °F Dew Point: 42 °F Humidity: 41% Wind: Calm Pressure: 29.62 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 2:05 AM CDT

Temperature: 68.4 °F Dew Point: 43 °F Humidity: 40% Wind: South at 1.1 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Maryland Heights, St Louis, MO

Updated: 1:56 AM CDT

Temperature: 68.6 °F Dew Point: 46 °F Humidity: 44% Wind: SW at 3.0 mph Pressure: 29.35 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 1:53 AM CDT

Temperature: 68.0 °F Dew Point: 46 °F Humidity: 45% Wind: SE at 1.1 mph Pressure: 29.90 in Hourly Precipitation: - Heat Index: - Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 2:04 AM CDT

Temperature: 69.7 °F Dew Point: 47 °F Humidity: 45% Wind: SSW at 2.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 1:58 AM CDT

Temperature: 68.4 °F Dew Point: 44 °F Humidity: 42% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 2:05 AM CDT

Temperature: 68.3 °F Dew Point: 44 °F Humidity: 42% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 2:05 AM CDT

Temperature: 66.4 °F Dew Point: 44 °F Humidity: 45% Wind: Calm Pressure: 29.35 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 1:55 AM CDT

Temperature: 69.1 °F Dew Point: 44 °F Humidity: 40% Wind: SW at 2.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 2:04 AM CDT

Temperature: 68.2 °F Dew Point: 44 °F Humidity: 42% Wind: SW at 1.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 1:57 AM CDT

Temperature: 67.0 °F Dew Point: 43 °F Humidity: 42% Wind: SW at 1.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 2:05 AM CDT

Temperature: 62.6 °F Dew Point: 43 °F Humidity: 49% Wind: South at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 1:54 AM CDT

Temperature: 68.6 °F Dew Point: 45 °F Humidity: 43% Wind: SSW at 2.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 1:51 AM CDT

Temperature: 69.1 °F Dew Point: 46 °F Humidity: 43% Wind: SSW at 8.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ladue Meadows, Creve Coeur, MO

Updated: 2:05 AM CDT

Temperature: 66.9 °F Dew Point: 45 °F Humidity: 46% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Timber Ridge, Godfrey, IL

Updated: 2:00 AM CDT

Temperature: 62.7 °F Dew Point: 51 °F Humidity: 66% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 2:05 AM CDT

Temperature: 68.7 °F Dew Point: 45 °F Humidity: 43% Wind: SSW at 4.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Brecht Ln, Godfrey, IL

Updated: 2:04 AM CDT

Temperature: 63.5 °F Dew Point: 48 °F Humidity: 56% Wind: Calm Pressure: 29.90 in Hourly Precipitation: - Heat Index: - Graphs

Location: St. Paul (SJC), OFallon, MO

Updated: 2:05 AM CDT

Temperature: 64.1 °F Dew Point: 48 °F Humidity: 55% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: st. louis, Jennings, MO

Updated: 11:00 PM CDT

Temperature: 70.9 °F Dew Point: 48 °F Humidity: 44% Wind: SW at 2.0 mph Pressure: 29.59 in Hourly Precipitation: 0.00 in Heat Index: 77 °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 
1121 PM CDT sun Apr 20 2014 


Update: 
issued at 800 PM CDT sun Apr 20 2014 


Large mid/upper level low/vorticity maxima centered across western 
Kansas/OK will slowly move east across the Central Plains tonight and 
phase with the northern stream on Monday across the Midwest. The 
northern stream will be responsible for bringing a weak cold front 
currently across the northern plains southeast into the northern 
reaches of our County Warning Area by early Monday afternoon. 


Currently the greatest coverage of convection is located near the 
Texas/OK Panhandle region where the strongest vorticity advection and 
surface convergence was observed. Elsewhere, coverage is isolated 
to scattered at best. 


Believe that showers and thunderstorm coverage will be slow to 
increase from west to east across the area late tonight/Monday 
morning. Greatest chances and coverage to occur in the afternoon 
and early evening along the advancing cold front where low level 
convergence will serve as the focus. Further south diurnal 
instability will lead to isolated/scattered coverage, similar to 
what is occurring to our west today. 


Have increased temperatures from the St. Louis Metro and points 
northeast where dry time in the morning and early afternoon should 
allow temperatures to rise into the upper 70s despite increasing 
cloud cover. 


Cvking 


&& 


Short term: (through monday) 
issued at 312 PM CDT sun Apr 20 2014 


Models continue to be a bit slower with onset of precipitation 
tonight. Will not see showers and a few thunderstorms til after 
midnight over central Missouri then slowly increase in coverage from 
west to east Monday morning. Surface based CAPES continue to be on 
the increase on Monday, between 500-1200 j/kg, so thunderstorms 
possible, though not expecting any severe weather at this time. 
Otherwise, mild conditions to persist with lows only in the mid to 
upper 50s tonight and highs on Monday will be in the low to mid 70s. 


Byrd 


Long term: (monday night through next sunday) 
issued at 312 PM CDT sun Apr 20 2014 


Cold front to slide through exiting forecast area by Monday evening, 
though some Post frontal precipitation not out of the question, so 
have chance pops Monday evening, then precipitation comes to an end. 
Not a lot of caa behind this system, so lows will be in the mid 40s 
to mid 50s Monday night. 


Surface ridge to build into region on Tuesday with dry and mild 
weather through midweek. Highs will be in the mid 60s to low 70s 
Tuesday and Wednesday with overnight lows in the 40s Tuesday night. 


Next weather system to move into region Wednesday night and persist 
through Thursday night. Best chances of showers and thunderstorms 
will be during the day on Thursday. Then dry weather to return for 
the first half of the weekend before next system moves in Saturday 
night and Sunday. As for temperatures through the period, expect 
upper 60s to mid 70s Thursday and Friday with highs in the low 60s 
to low 70s for Saturday and Sunday. 


Byrd 


&& 


Aviation: (for the 06z tafs through 06z Monday night) 
issued at 1112 PM CDT sun Apr 20 2014 


An upper level disturbance will combine with a cold front to bring 
a chance of shras/tstms to the region tomorrow...esp during the 
aftn. The best chances for precip are expected to occur during the 
aftn in assoc with Max diurnal heating and passage of the cold 
front. Conditions worse than currently depicted will be possible 
if any convective element directly impacts a terminal. Winds will 
remain sthrly overnight and then become wrly/nwrly after frontal passage. 


Specifics for kstl: 


The best chance for lowered vsbys due to precip will be during 
the aftn in advance of the cold front. Otherwise expect VFR 
conditions with winds aob 10-12 kts. 


2% 


&& 


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.