Saint Peters, Missouri Weather Conditions

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Current Conditions

  • 72°
  • Clear
  • Wind: Calm
  • Humidity: 100%
  • Visibility: 2.5 miles
  • Dew Point: 72°
  • Pressure: 29.98 in. +

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
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74°
71°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Clear
  • High: 93 °
  • Low: 70 °
  • Clear
  • Friday
  • Clear
  • High: 94 °
  • Low: 70 °
  • Clear
  • Saturday
  • Clear
  • High: 94 °
  • Low: 70 °
  • Clear
  • Sunday
  • Clear
  • High: 95 °
  • Low: 72 °
  • Clear
  • Monday
  • Chance of a Thunderstorm
  • High: 89 °
  • Low: 69 °
  • Chance of T-Storms

Forecast for Saint Peters, Missouri

Updated: 10:04 PM CDT on January 02, 2015

  • Thursday

    Mostly sunny skies. High 93F. Winds light and variable.

  • Thursday Night

    Clear skies. Low around 70F. Winds light and variable.

  • Friday

    Except for a few afternoon clouds, mainly sunny. High 94F. Winds light and variable.

  • Friday Night

    Clear skies. Low around 70F. Winds light and variable.

  • Saturday

    Sunshine and some clouds. High 94F. Winds light and variable.

  • Saturday Night

    Partly cloudy skies. Low around 70F. Winds light and variable.

  • Sunday

    Sunshine and some clouds. High near 95F. Winds S at 5 to 10 mph.

  • Sunday Night

    Partly cloudy with late night showers or thunderstorms. Low 72F. Winds light and variable. Chance of rain 60%.

  • Monday

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

  • Monday Night

    A few clouds. Low 69F. Winds light and variable.

  • Tuesday

    Considerable clouds early. Some decrease in clouds later in the day. High around 85F. Winds SSE at 5 to 10 mph.

  • Tuesday Night

    Variable clouds with scattered thunderstorms. Low 69F. Winds light and variable. Chance of rain 60%.

  • Wednesday

    Mixed clouds and sun with scattered thunderstorms. High 81F. Winds W at 5 to 10 mph. Chance of rain 60%.

  • Wednesday Night

    Scattered thunderstorms in the evening. Partly cloudy skies overnight. Low near 60F. Winds light and variable. Chance of rain 40%.

  • Thursday

    Partly cloudy. High 77F. Winds N at 5 to 10 mph.

  • Thursday Night

    Partly cloudy skies early giving way to a few showers after midnight. Low around 55F. Winds light and variable. Chance of rain 30%.

  • Friday

    Showers in the morning, then partly cloudy in the afternoon. High 78F. Winds NNW at 5 to 10 mph. Chance of rain 60%.

  • Friday Night

    Clear skies early. Becoming mostly cloudy with showers developing later at night. Low 56F. Winds light and variable. Chance of rain 40%.

  • Saturday

    Rain showers early with some sunshine later in the day. High 78F. Winds N at 5 to 10 mph. Chance of rain 40%.

  • Saturday Night

    Partly cloudy skies early followed by mostly cloudy skies and a few showers later at night. Low 58F. Winds light and variable. Chance of rain 30%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Wilshire Valley, St. Charles, MO

Updated: 1:33 AM CDT

Temperature: 77.7 °F Dew Point: 62 °F Humidity: 58% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 1:44 AM CDT

Temperature: 75.7 °F Dew Point: 71 °F Humidity: 86% Wind: SW at 1.1 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Woodcliff, Saint Charles, MO

Updated: 1:40 AM CDT

Temperature: 73.9 °F Dew Point: 73 °F Humidity: 98% Wind: Calm Pressure: 29.62 in Hourly Precipitation: - Heat Index: 70 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 1:37 AM CDT

Temperature: 74.7 °F Dew Point: 73 °F Humidity: 93% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 1:46 AM CDT

Temperature: 73.4 °F Dew Point: 71 °F Humidity: 89% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 1:45 AM CDT

Temperature: 70.2 °F Dew Point: 69 °F Humidity: 96% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Carriage Cove Court, Saint Charles, MO

Updated: 1:45 AM CDT

Temperature: 75.9 °F Dew Point: 70 °F Humidity: 82% Wind: North at - Pressure: 29.90 in Hourly Precipitation: - Heat Index: 77 °F Graphs

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

Updated: 1:46 AM CDT

Temperature: 76.5 °F Dew Point: 74 °F Humidity: 92% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 1:44 AM CDT

Temperature: 74.7 °F Dew Point: 72 °F Humidity: 91% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 1:46 AM CDT

Temperature: 73.9 °F Dew Point: 70 °F Humidity: 89% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 1:45 AM CDT

Temperature: 75.0 °F Dew Point: 69 °F Humidity: 80% Wind: North at - Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 1:40 AM CDT

Temperature: 72.3 °F Dew Point: 70 °F Humidity: 94% Wind: Calm Pressure: 29.76 in Hourly Precipitation: - Heat Index: - Graphs

Location: Spencer Valley, Saint Peters, MO

Updated: 1:37 AM CDT

Temperature: 76.7 °F Dew Point: 72 °F Humidity: 85% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 1:45 AM CDT

Temperature: 76.7 °F Dew Point: 72 °F Humidity: 85% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 1:33 AM CDT

Temperature: 72.7 °F Dew Point: 70 °F Humidity: 91% Wind: Calm Pressure: 29.97 in Hourly Precipitation: - Heat Index: - Graphs

Location: Park Charles South, Saint Peters, MO

Updated: 1:46 AM CDT

Temperature: 75.9 °F Dew Point: 71 °F Humidity: 87% Wind: North at - Pressure: 30.07 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 1:45 AM CDT

Temperature: 74.1 °F Dew Point: 73 °F Humidity: 95% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Rule Place Court, Maryland Heights, MO

Updated: 1:45 AM CDT

Temperature: 75.4 °F Dew Point: 69 °F Humidity: 81% Wind: North at - Pressure: 29.81 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 1:46 AM CDT

Temperature: 74.7 °F Dew Point: 72 °F Humidity: 92% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Old Farm Estates, St. Louis, MO

Updated: 1:44 AM CDT

Temperature: 73.2 °F Dew Point: 71 °F Humidity: 94% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Saint Peters, Saint Peters, MO

Updated: 1:45 AM CDT

Temperature: 75.4 °F Dew Point: 72 °F Humidity: 88% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Maryland Heights, MO

Updated: 1:41 AM CDT

Temperature: 75.0 °F Dew Point: 71 °F Humidity: 88% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 1:45 AM CDT

Temperature: 74.6 °F Dew Point: 72 °F Humidity: 91% Wind: East at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 1:45 AM CDT

Temperature: 72.9 °F Dew Point: 70 °F Humidity: 90% Wind: Calm Pressure: 29.43 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Austin Pass Drive, Weldon Spring, MO

Updated: 1:45 AM CDT

Temperature: 76.1 °F Dew Point: 71 °F Humidity: 83% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 1:38 AM CDT

Temperature: 75.3 °F Dew Point: 72 °F Humidity: 89% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 1:45 AM CDT

Temperature: 72.9 °F Dew Point: 73 °F Humidity: 99% Wind: Calm Pressure: 29.89 in Hourly Precipitation: - Heat Index: - Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 1:45 AM CDT

Temperature: 78.1 °F Dew Point: 72 °F Humidity: 81% Wind: North at - Pressure: 29.99 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: Madison Park, Cottleville, MO

Updated: 11:05 PM CDT

Temperature: 74.3 °F Dew Point: 72 °F Humidity: 94% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: New Town St Charles, Saint Charles, MO

Updated: 1:42 AM CDT

Temperature: 72.1 °F Dew Point: 71 °F Humidity: 95% Wind: Calm Pressure: 29.94 in Hourly Precipitation: - Heat Index: - Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 1:45 AM CDT

Temperature: 76.7 °F Dew Point: 72 °F Humidity: 84% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 1:45 AM CDT

Temperature: 73.5 °F Dew Point: 67 °F Humidity: 79% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

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

Updated: 1:35 AM CDT

Temperature: 71.6 °F Dew Point: 69 °F Humidity: 91% Wind: Calm Pressure: 29.83 in Hourly Precipitation: - Heat Index: - Graphs

Location: Sunny Hill Estates, St. Peters, MO

Updated: 1:43 AM CDT

Temperature: 68.2 °F Dew Point: 66 °F Humidity: 93% Wind: Calm Pressure: 29.92 in Hourly Precipitation: - Heat Index: - Graphs

Location: Windsor Place, Cottleville, MO

Updated: 1:41 AM CDT

Temperature: 72.1 °F Dew Point: 68 °F Humidity: 87% Wind: Calm Pressure: 29.87 in Hourly Precipitation: - Heat Index: 70 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 1:46 AM CDT

Temperature: 74.7 °F Dew Point: 71 °F Humidity: 89% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 1:10 AM CDT

Temperature: 77 °F Dew Point: 70 °F Humidity: 80% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 79 °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 
1147 PM CDT Wednesday Sep 2 2015 


Update: 
issued at 858 PM CDT Wed Sep 2 2015 


Widely scattered showers were across parts of north central MO 
and south central Iowa this evening. This activity appeared to be 
associated with low level moisture convergence and weak warm air 
advection on nose of a 20-25 knots southwesterly low level jet. The 
previous models did not have a good handle on this precipitation. 
Even the latest model runs keep most of this precipitation out of 
our forecast area tonight. For now will just include isolated 
showers/storms across northeast MO for the remainder of this 
evening. Another mild and muggy night with weak southerly surface 
winds on the western or northwestern periphery of the surface 
ridge located just east/southeast of our area. Lows will be 
similar to the past night...and 5 to 10 degrees above normal for 
early September. 


Gks 


&& 


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 06z tafs through 06z Thursday night) 
issued at 1139 PM CDT Wed Sep 2 2015 


A few high-based spotty showers have developed across north 
central MO this evening and are persisting as they drift 
southeast. Present indications are they will avoid KUIN and will 
hopefully dissipate before moving as far southeast as kcou. Still 
anticipating the potential for a short period of fog/br between 
09-13z at all terminals except kstl, with the possibility of 
reducing the visibility to 4-6sm. Otherwise VFR flight conditions 
to persist through Thursday with few-scattered diurnal cu from 
midday into the afternoon. 


Specifics for kstl: 


VFR flight conditions should prevail through the forecast period. 


Glass 


&& 


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


$$ 


Weather forecast office lsx 



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