Saint Peters, Missouri Weather Conditions

Severe Weather Alerts

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

  • 32°
  • Overcast
  • Wind: NW 7 mph
  • Humidity: 85%
  • Visibility: 7.0 miles
  • Dew Point: 28°
  • Pressure: 30.37 in. +
  • Heat Index: 26

Select a Section

Click a section below for more information.

Next 12 Hours

3  am
6  am
9  am
12  pm
3  pm
Mostly Cloudy
Mostly Cloudy
Fog
Fog
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
30°
25°
30°
34°
34°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 36 °
  • Low: 23 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 52 °
  • Low: 37 °
  • Partly Cloudy
  • Saturday
  • Mostly Cloudy
  • High: 59 °
  • Low: 52 °
  • Mostly Cloudy
  • Sunday
  • Chance of Rain
  • High: 68 °
  • Low: 27 °
  • Chance of Rain
  • Monday
  • Overcast
  • High: 37 °
  • Low: 25 °
  • Overcast

Forecast for Saint Peters, Missouri

Updated: 3:00 AM CST on November 27, 2014

  • Thursday

    Partly cloudy. Fog early. High of 36F with a windchill as low as 16F. Winds from the NW at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low of 23F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 52F. Winds from the South at 10 to 15 mph.

  • Friday Night

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

  • Saturday

    Mostly cloudy. High of 59F. Winds from the SSW at 5 to 15 mph.

  • Saturday Night

    Overcast in the evening, then mostly cloudy. Low of 52F. Winds from the SSW at 10 to 15 mph.

  • Sunday

    Overcast with a chance of rain in the afternoon. High of 68F. Winds from the SW at 10 to 15 mph shifting to the WNW in the afternoon. Chance of rain 20%.

  • Sunday Night

    Overcast in the evening, then partly cloudy. Low of 27F with a windchill as low as 21F. Breezy. Winds from the North at 10 to 20 mph.

  • Monday

    Overcast. High of 37F with a windchill as low as 21F. Winds from the NNE at 10 to 15 mph.

  • Monday Night

    Partly cloudy. Low of 25F with a windchill as low as 16F. Winds from the East at 10 to 15 mph.

  • Tuesday

    Partly cloudy. High of 46F. Winds from the SSE at 10 to 15 mph.

  • Tuesday Night

    Mostly cloudy. Low of 28F. Winds from the SSW at 5 to 15 mph.

  • Wednesday

    Overcast with a chance of rain. High of 52F. Winds from the WNW at 5 to 10 mph shifting to the ESE in the afternoon. Chance of rain 20%.

  • Wednesday Night

    Mostly cloudy. Low of 39F. Winds from the SSE at 10 to 15 mph.

  • Thursday

    Overcast with a chance of rain. Fog early. High of 55F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 50%.

  • Thursday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 23F. Winds from the WNW at 5 to 15 mph shifting to the North after midnight. Chance of rain 20%.

  • Friday

    Mostly cloudy. Fog early. High of 36F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Fog overnight. Low of 25F. Winds less than 5 mph.

  • Saturday

    Overcast. High of 37F. Winds less than 5 mph.

  • Saturday Night

    Overcast. Fog overnight. Low of 25F. Winds less than 5 mph.

  • Sunday

    Mostly cloudy. High of 41F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 25F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Local Storm Report 



11/26/2014 0420 PM

Cottleville, St Charles County.

Snow m1.3 inch, reported by NWS employee.





11/26/2014 0420 PM

Cottleville, St Charles County.

Snow m1.3 inch, reported by NWS employee.





Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: St. Peters, St. Peters, MO

Updated: 3:09 AM CST

Temperature: 30.4 °F Dew Point: 28 °F Humidity: 89% Wind: North at 8.9 mph Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

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

Updated: 3:02 AM CST

Temperature: 30.9 °F Dew Point: 30 °F Humidity: 97% Wind: Calm Pressure: 30.22 in Hourly Precipitation: - Windchill: 31 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 3:09 AM CST

Temperature: 31.3 °F Dew Point: 28 °F Humidity: 86% Wind: NNW at 4.3 mph Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 3:05 AM CST

Temperature: 30.7 °F Dew Point: 29 °F Humidity: 95% Wind: NW at 4.7 mph Pressure: 30.26 in Hourly Precipitation: - Windchill: 26 °F Graphs

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

Updated: 3:09 AM CST

Temperature: 30.6 °F Dew Point: 27 °F Humidity: 88% Wind: West at 8.7 mph Pressure: 30.35 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

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

Updated: 3:09 AM CST

Temperature: 31.5 °F Dew Point: 31 °F Humidity: 97% Wind: Calm Pressure: 30.35 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 3:09 AM CST

Temperature: 30.7 °F Dew Point: 29 °F Humidity: 90% Wind: South at 2.0 mph Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 3:05 AM CST

Temperature: 30.5 °F Dew Point: 29 °F Humidity: 93% Wind: NW at 9.0 mph Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 22 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 3:09 AM CST

Temperature: 31.0 °F Dew Point: 28 °F Humidity: 90% Wind: WNW at 4.0 mph Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 3:09 AM CST

Temperature: 31.3 °F Dew Point: 29 °F Humidity: 91% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 3:05 AM CST

Temperature: 30.5 °F Dew Point: 28 °F Humidity: 91% Wind: NNW at 5.0 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

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

Updated: 3:09 AM CST

Temperature: 29.0 °F Dew Point: 25 °F Humidity: 85% Wind: WNW at 5.0 mph Pressure: 33.05 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 3:09 AM CST

Temperature: 30.3 °F Dew Point: 28 °F Humidity: 91% Wind: WSW at 2.0 mph Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 3:00 AM CST

Temperature: 31.1 °F Dew Point: 24 °F Humidity: 73% Wind: Calm Pressure: 30.41 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 3:09 AM CST

Temperature: 31.5 °F Dew Point: 27 °F Humidity: 84% Wind: NNW at 5.8 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 2:56 AM CST

Temperature: 31.6 °F Dew Point: 29 °F Humidity: 91% Wind: North at 6.0 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 26 °F Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 3:09 AM CST

Temperature: 30.7 °F Dew Point: 28 °F Humidity: 88% Wind: NNW at 1.6 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 3:09 AM CST

Temperature: 30.1 °F Dew Point: 28 °F Humidity: 90% Wind: Calm Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 3:09 AM CST

Temperature: 30.2 °F Dew Point: 28 °F Humidity: 90% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 3:04 AM CST

Temperature: 31.5 °F Dew Point: 29 °F Humidity: 89% Wind: NNW at 4.9 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 3:06 AM CST

Temperature: 29.9 °F Dew Point: 25 °F Humidity: 83% Wind: NNW at 4.9 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 3:08 AM CST

Temperature: 30.5 °F Dew Point: 28 °F Humidity: 92% Wind: Calm Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Ridgepointe-Meadowbrook, Lake Saint Louis, MO

Updated: 3:09 AM CST

Temperature: 30.9 °F Dew Point: 28 °F Humidity: 88% Wind: NE at 4.0 mph Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 3:09 AM CST

Temperature: 30.9 °F Dew Point: 26 °F Humidity: 81% Wind: Calm Pressure: 30.93 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Stable Ridge Estates, Saint Charles, MO

Updated: 3:07 AM CST

Temperature: 30.2 °F Dew Point: 23 °F Humidity: 74% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

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

Updated: 3:09 AM CST

Temperature: 30.2 °F Dew Point: 28 °F Humidity: 90% Wind: North at 8.0 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 2:59 AM CST

Temperature: 30.9 °F Dew Point: 28 °F Humidity: 90% Wind: NW at 2.9 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Lake Saint Louis, Lake Saint Louis, MO

Updated: 3:08 AM CST

Temperature: 31.1 °F Dew Point: 28 °F Humidity: 90% Wind: NW at 4.0 mph Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 27 °F Graphs

Location: APRSWXNET St. Louis MO US, Saint Louis, MO

Updated: 2:33 AM CST

Temperature: 31 °F Dew Point: 29 °F Humidity: 93% Wind: Calm Pressure: 30.34 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 3:08 AM CST

Temperature: 29.4 °F Dew Point: 27 °F Humidity: 92% Wind: NNW at 4.0 mph Pressure: 30.39 in Hourly Precipitation: 0.00 in Windchill: 25 °F Graphs

Location: Avondale, Wentzville, MO

Updated: 2:58 AM CST

Temperature: 31.2 °F Dew Point: 29 °F Humidity: 92% Wind: Calm Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 31 °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 
1145 PM CST Wed Nov 26 2014 


Update: 
issued at 836 PM CST Wed Nov 26 2014 


Light snow continues to fall across much of the forecast area 
this evening associated with a northwest flow shortwave and an 
associated weak surface low now near stl. Most of the 
precipitation was in the form of light snow, although there was 
also light rain across portions of central and southeast MO ahead 
of a cold front which extended from just east of cou southwest to 
just east of sgf where there was a wedge of warmer air southwest 
of the surface low and an occluded front. There was also patchy 
drizzle or freezing drizzle where the lift was weak and the low 
level cloud cover quite shallow. Only minor additional snow 
accumulations of under one inch are expected tonight with much of 
the area receiving a total of around one inch of snow depth with 
isolated spots up to 2 inches. There should just be some lingering 
flurries late tonight. As temperatures cool well below freezing 
late tonight there may be some slick icy spots on untreated 
roads, sidewalks, driveways and parking lots where melted snow 
refreezes. 


Gks 


&& 


Short term: (through late tonight) 
issued at 351 PM CST Wed Nov 26 2014 


Clipper system continues to impact our forecast area at this time. 


At 21z...a low pressure center was located in northeast MO and 
was moving slowly to the southeast. A warm front extended to the 
south-southeast of this low pressure area into east-central MO--just 
west of the stl Metro area--where temps have risen into the upper 
30s and low 40s. The cold front associated with this system is 
gaining on the warm front and was now located from this low pressure 
area and to the south into central MO. Temps ahead/east of the warm 
front have remained in the low-mid 30s. An area of precipitation 
extended in a band on the Illinois side of the river mostly. Nearly all of 
this precipitation was snow. Drizzle has developed on the backside 
of this main band and into the vicinity of what is beginning to be 
an occluded front, as the cold front catches the warm. 


The low pressure in northeast MO is occluding with all anticipation 
that a new triple point will develop over Tennessee this evening. In the 
meantime, the front over our region will become occluded as well and 
simply a wind shift line and focus for drizzle. 


Temps near the MS river and Illinois will stall this evening and then 
slowly fall, while a more normal diurnal trend will be seen for 
central MO and southeast MO. Min temps tonight will strongly favor 
the higher met MOS values with low clouds expected to stick around 
all night. 


The precipitation band is expected to soon stall over in Illinois and 
gradually weaken this evening as the new focus shifts well to the 
southeast for the overnight. Leftover diurnally generated scattered 
showers...mostly snow by this point...will wander into the areas 
where the main pcpn band has vacated along with patchy drizzle 
associated with the occluded front moving thru. Temps may be cold 
enough for some fzdz to result as well. 


Additional snow accums will be minimal...with up to an inch extra in 
southwest Illinois. Icing potential will need to be watched carefully 
with models and radar not picking up on this too well yet but 
scenario does favor drizzle thru the evening. 


Byrd 


Long term: (thursday through next wednesday) 
issued at 351 PM CST Wed Nov 26 2014 


Ridge of high pressure to move into the region on Thanksgiving with 
colder temperatures. Clouds will be slow to clear out so temps to 
only rise into the mid 20s to around 40. 


Another cold night Thursday night with lows in the 20s. Then surface 
ridge moves to the east allowing southerly winds to return and 
become gusty on Friday. So highs will be near normal in the mid 40s 
to mid 50s. 


Warmer weather to persist through the weekend with highs in the mid 
50s to mid 60s on Saturday and lows Saturday night in the low 40s to 
low 50s. Models still bring a cold front into region during the day 
on Sunday. High temp forecast to be tricky depending on timing of 
this frontal boundary. For now have highs in the upper 40s far north 
to the mid 60s far south. Otherwise, low level moisture will be on 
the increase ahead of this front so could see some rain across 
southern half of forecast area Sunday through Monday with it mixing 
with or changing over to snow at times. Lows Sunday night will be in 
the upper teens to mid 30s. Highs on Monday will be in the low 30s 
to low 40s. 


Weak surface ridge to build in Monday night and Tuesday. So will see 
dry conditions with lows Monday night in the low 20s to low 30s and 
highs on Tuesday in the 40s. 


Beyond that extended models have differing solutions with European model (ecmwf) a 
bit faster with next frontal passage and drier vs. GFS which is 
slower and much wetter solution. For now went with a blend, have 
slight chance pops Tuesday night and chance pops on Wednesday. 
Temperatures to be near freezing Tuesday night in northern portions 
of forecast area so could see a mix of rain and snow. Otherwise, 
rain possible for mid week next week. 


Byrd 


&& 


Aviation: (for the 06z tafs through 06z Thursday night) 
issued at 1134 PM CST Wed Nov 26 2014 


IFR flight conditions were widespread earlier this evening across 
eastern MO and western Illinois into southeast Iowa. However over the last 
few hours there has been a dramatic improvement as the surface low 
redevelops in the Tennessee Valley, winds shift to north and northwesterly, 
and snowfall diminishes. Radar and present trends suggest snow 
should end across the St. Metro area within the next hour or two 
with conditions improving at that time to MVFR. Elsewhere MVFR 
conditions will persist overnight. During the day on Thursday the 
cig heights are expected to gradually improve with VFR flight 
conditions evolving from midday into the afternoon. 


Specifics for kstl: 


Snow is expected to end by 07z with flight conditions improving at 
that time to MVFR. MVFR flight conditions will then persist 
through early afternoon with cig heights gradually rising, with 
VFR conditions around 21z. 


Glass 


&& 


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.