Saint Ann, Missouri Weather Conditions

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Current Conditions

  • 89°
  • Mostly Cloudy
  • Wind: WSW 6 mph
  • Humidity: 45%
  • Visibility: 10.0 miles
  • Dew Point: 65°
  • Pressure: 29.95 in. 0
  • Heat Index: 91

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Next 12 Hours

8  pm
11  pm
2  am
5  am
8  am
Clear
Clear
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
86°
82°
78°
76°
78°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Clear
  • High: 94 °
  • Low: 75 °
  • Clear
  • Friday
  • Clear
  • High: 95 °
  • Low: 74 °
  • Clear
  • Saturday
  • Clear
  • High: 95 °
  • Low: 73 °
  • Clear
  • Sunday
  • Partly Cloudy
  • High: 95 °
  • Low: 75 °
  • Partly Cloudy
  • Monday
  • Chance of a Thunderstorm
  • High: 89 °
  • Low: 73 °
  • Chance of T-Storms

Forecast for Saint Ann, Missouri

Updated: 4:00 PM CDT on January 02, 2015

  • Wednesday

    Partly cloudy. Lows overnight in the mid 70s.

  • Wednesday Night

    Partly cloudy skies. Low 74F. Winds S at 5 to 10 mph.

  • Thursday

    Sunshine and some clouds. High 94F. Winds SW at 5 to 10 mph.

  • Thursday Night

    A mostly clear sky. Low around 75F. Winds light and variable.

  • Friday

    Plentiful sunshine. High near 95F. Winds SSW at 5 to 10 mph.

  • Friday Night

    Clear. Low 74F. Winds SSE at 5 to 10 mph.

  • Saturday

    Sunny, along with a few afternoon clouds. High around 95F. Winds SSE at 5 to 10 mph.

  • Saturday Night

    A few clouds from time to time. Low 73F. Winds SSE at 5 to 10 mph.

  • Sunday

    Partly cloudy. High around 95F. Winds S at 10 to 15 mph.

  • Sunday Night

    Mostly clear skies early. Scattered thunderstorms developing later at night. Low near 75F. Winds S at 5 to 10 mph. Chance of rain 60%.

  • Monday

    Variable clouds with scattered thunderstorms. High 89F. Winds SW at 5 to 10 mph. Chance of rain 60%.

  • Monday Night

    Scattered thunderstorms. Low 73F. Winds light and variable. Chance of rain 50%.

  • Tuesday

    Scattered thunderstorms in the morning. Partly cloudy skies late. High around 85F. Winds SSE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Mostly clear in the evening then increasing clouds with some scattered thunderstorms after midnight. Low 72F. Winds SSE at 5 to 10 mph. Chance of rain 60%.

  • Wednesday

    Scattered thunderstorms. High 83F. Winds W at 5 to 10 mph. Chance of rain 60%.

  • Wednesday Night

    Mostly clear skies early followed by increasing clouds and a few showers later at night. Low 64F. Winds N at 5 to 10 mph. Chance of rain 30%.

  • Thursday

    Partly cloudy skies. High 81F. Winds NNE at 5 to 10 mph.

  • Thursday Night

    Partly cloudy skies. Low 61F. Winds NE at 5 to 10 mph.

  • Friday

    Showers early becoming less numerous later in the day. High near 80F. Winds NNW at 5 to 10 mph. Chance of rain 60%.

  • Friday Night

    Mainly clear skies. Low 62F. Winds ENE at 5 to 10 mph.

  • Saturday

    A few clouds from time to time. High near 80F. Winds NNW at 5 to 10 mph.

  • Saturday Night

    Mostly clear skies. Low 62F. Winds SE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 6:45 PM CDT

Temperature: 87.9 °F Dew Point: 74 °F Humidity: 63% Wind: Calm Pressure: 28.60 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 6:29 PM CDT

Temperature: 87 °F Dew Point: 74 °F Humidity: 65% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Maryland Heights, MO

Updated: 6:41 PM CDT

Temperature: 87.3 °F Dew Point: 72 °F Humidity: 60% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 6:44 PM CDT

Temperature: 88.0 °F Dew Point: 71 °F Humidity: 57% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Rule Place Court, Maryland Heights, MO

Updated: 6:40 PM CDT

Temperature: 88.9 °F Dew Point: 73 °F Humidity: 59% Wind: North at - Pressure: 29.80 in Hourly Precipitation: - Heat Index: 97 °F Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 6:45 PM CDT

Temperature: 85.1 °F Dew Point: 72 °F Humidity: 65% Wind: North at - Pressure: 29.99 in Hourly Precipitation: - Heat Index: 91 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 6:45 PM CDT

Temperature: 86.1 °F Dew Point: 68 °F Humidity: 55% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 6:45 PM CDT

Temperature: 88.7 °F Dew Point: 70 °F Humidity: 55% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 6:45 PM CDT

Temperature: 88.3 °F Dew Point: 73 °F Humidity: 61% Wind: Calm Pressure: 29.42 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 6:45 PM CDT

Temperature: 88.8 °F Dew Point: 73 °F Humidity: 59% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 6:24 PM CDT

Temperature: 88 °F Dew Point: 70 °F Humidity: 56% Wind: SW at 1 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Old Farm Estates, St. Louis, MO

Updated: 6:44 PM CDT

Temperature: 85.4 °F Dew Point: 74 °F Humidity: 69% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 6:44 PM CDT

Temperature: 92.1 °F Dew Point: 73 °F Humidity: 54% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 6:45 PM CDT

Temperature: 89.9 °F Dew Point: 73 °F Humidity: 57% Wind: ENE at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 6:44 PM CDT

Temperature: 88.9 °F Dew Point: 70 °F Humidity: 53% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 6:44 PM CDT

Temperature: 83.8 °F Dew Point: 71 °F Humidity: 66% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Fawnridge Drive, Saint Louis, MO

Updated: 6:45 PM CDT

Temperature: 88.5 °F Dew Point: 74 °F Humidity: 62% Wind: North at - Pressure: 30.08 in Hourly Precipitation: - Heat Index: 97 °F Graphs

Location: Breezeridge Drive, Kirkwood, MO

Updated: 6:45 PM CDT

Temperature: 88.2 °F Dew Point: 71 °F Humidity: 57% Wind: North at - Pressure: 29.18 in Hourly Precipitation: - Heat Index: 94 °F Graphs

Location: Franz Park, St. Louis, MO

Updated: 6:45 PM CDT

Temperature: 87.6 °F Dew Point: 75 °F Humidity: 66% Wind: North at - Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 97 °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 
636 PM CDT Wednesday Sep 2 2015 


Short term: (through late tonight) 
issued at 207 PM CDT Wednesday Sep 2 2015 


An upper level ridge is dominating the southern Continental U.S. With 
somewhat stronger westerlies across northern MO and central Illinois 
with a weak upper level disturbance straddling the MO-Iowa border. 
An earlier area of rain showers/thunderstorms and rain has since dissipated over north- 
central and northeast MO where there remains a rather thick layer 
of high clouds still, with a diurnal cumulus cloud field that has 
developed further to the south and east...generally for areas S 
of I-70 in MO and southeast of I-55 in Illinois. Temperatures have risen to above 
average values once again this afternoon, with readings in the 
upper 80s and lower 90s for most locations. 


May see a limited isolated thunderstorms and rain event once again late this 
afternoon until 00z/7pm CDT with dry conditions anticipated 
overnight with it being very questionable whether the weak upper 
level disturbance will be able to kick anything off overnight. 


Temperatures overnight should be near persistence values: middle 60s 
in the Eastern Ozarks to the middle 70s in the urban heat island of 
stl city, with near 70 most everywhere else. 


Tes 


Long term: (thursday through next wednesday) 
issued at 207 PM CDT Wednesday Sep 2 2015 


The persistent upper level ridge noted across the central Continental U.S. 
Today is forecast to remain in place through the weekend. A 
sprawling surface high is also forecast to remain over the 
greater Ohio Valley region during this time. With little change in 
both the surface and the upper air patterns expected over the 
next several days, it is likely that there will be little change 
in the day-to-day weather conditions. Expect highs in the low to middle 
90s, overnight lows around 70, transient cloudiness, and a 
noticeably humid air mass. There is little chance of widespread 
rainfall until late this weekend/early next week. 


Models show that the upper pattern starts to break down late this 
weekend/early next week in response to a low pressure system 
which moves over the Pacific northwest on Friday, then dips southward into 
California/Nevada before lifting back northeastward into the northern plains 
over the weekend. The low pressure system's trailing cold front 
edges toward the MO/Iowa border on Monday night before lifting back 
northward as a warm front on Tuesday. Mconv on the nose of lljs 
supports chance probability of precipitation on Mon/Tue. A new surface wave then develops 
along the stalled boundary and rides northeastward during the middle 
of the week, sending the cold front through the County Warning Area on Wednesday/Thursday 
(although European model (ecmwf)/GFS disagree on the speed of the front). Precipitation chances 
for Wednesday are tied to surface forcing with the front. 


Kanofsky 


&& 


Aviation: (for the 00z tafs through 00z Thursday evening) 
issued at 632 PM CDT Wed Sep 2 2015 


VFR flight conditions are expected this evening and much of the 
overnight period. Between 10-13z all terminals except kstl have 
the possibility of a short period of fog/br reducing the 
visibility to 4-6sm. Otherwise VFR flight conditions will persist 
on Thursday with few-scattered diurnal cu. 


Specifics for kstl: 


VFR flight conditions will previal throughout the forecast period. 


Glass 


&& 


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


$$ 


Weather forecast office lsx 



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