Saint Peters, 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

  • 39°
  • Clear
  • Wind: WSW 7 mph
  • Humidity: 50%
  • Visibility: 10.0 miles
  • Dew Point: 22°
  • Pressure: 30.17 in. 0
  • Heat Index: 34

Select a Section

Click a section below for more information.

Next 12 Hours

6  pm
9  pm
12  am
3  am
6  am
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Snow
Snow
34°
30°
28°
30°
32°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Clear
  • High: 40 °
  • Low: 28 °
  • Clear
  • Wednesday
  • Snow
  • High: 41 °
  • Low: 23 °
  • Snow
  • Thursday
  • Partly Cloudy
  • High: 36 °
  • Low: 23 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 50 °
  • Low: 39 °
  • Partly Cloudy
  • Saturday
  • Mostly Cloudy
  • High: 55 °
  • Low: 45 °
  • Mostly Cloudy

Forecast for Saint Peters, Missouri

Updated: 3:00 PM CST on November 25, 2014

  • Tuesday

    Clear. High of 39F with a windchill as low as 19F. Winds from the WNW at 5 to 10 mph.

  • Tuesday Night

    Clear in the evening, then partly cloudy. Low of 28F. Winds less than 5 mph.

  • Wednesday

    Mostly cloudy with snow and rain in the morning, then overcast with snow and rain. High of 41F. Winds from the South at 5 to 10 mph. Chance of snow 70% with accumulations up to 1 in. possible.

  • Wednesday Night

    Overcast in the evening, then mostly cloudy. Fog overnight. Low of 23F. Winds from the WNW at 5 to 10 mph.

  • Thursday

    Overcast in the morning, then mostly cloudy. High of 36F with a windchill as low as 19F. Winds from the NW at 5 to 15 mph.

  • Thursday Night

    Partly cloudy. Low of 23F. Winds from the NE at 5 to 10 mph shifting to the SSE after midnight.

  • Friday

    Partly cloudy. Fog early. High of 50F. Breezy. Winds from the South at 15 to 20 mph.

  • Friday Night

    Overcast in the evening, then mostly cloudy. Fog overnight. Low of 39F. Winds from the SSW at 10 to 15 mph.

  • Saturday

    Partly cloudy in the morning, then overcast. Fog early. High of 55F. Winds from the SW at 5 to 10 mph.

  • Saturday Night

    Mostly cloudy. Fog overnight. Low of 45F. Winds from the SSW at 5 to 10 mph.

  • Sunday

    Overcast. High of 54F. Winds from the NNW at 5 to 15 mph.

  • Sunday Night

    Mostly cloudy with a chance of snow. Low of 30F. Winds from the NNE at 10 to 15 mph. Chance of snow 40%.

  • Monday

    Overcast. Fog early. High of 41F. Winds from the NNE at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Fog overnight. Low of 36F with a windchill as low as 27F. Winds from the East at 5 to 10 mph.

  • Tuesday

    Overcast. Fog early. High of 55F. Breezy. Winds from the South at 10 to 20 mph.

  • Tuesday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 41F. Breezy. Winds from the South at 15 to 20 mph. Chance of rain 20% with rainfall amounts near 0.5 in. possible.

  • Wednesday

    Overcast with a chance of a thunderstorm. Fog early. High of 54F. Winds from the SW at 5 to 20 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Wednesday Night

    Partly cloudy. Low of 36F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 52F. Winds from the NW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 28F. Winds from the NNW at 5 to 10 mph.

  • Friday

    Clear. High of 46F. Winds from the NW at 5 to 10 mph.

  • Friday Night

    Clear. Low of 27F. Winds less than 5 mph.

  • Saturday

    Clear. High of 41F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 27F. Winds from the SW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Wilshire Valley, St. Charles, MO

Updated: 4:45 PM CST

Temperature: 37.6 °F Dew Point: 10 °F Humidity: 32% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 4:52 PM CST

Temperature: 37.2 °F Dew Point: 23 °F Humidity: 57% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 4:38 PM CST

Temperature: 38.3 °F Dew Point: 24 °F Humidity: 57% Wind: West at 1.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 4:52 PM CST

Temperature: 36.8 °F Dew Point: 25 °F Humidity: 60% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 4:41 PM CST

Temperature: 38.8 °F Dew Point: 25 °F Humidity: 57% Wind: South at 1.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

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

Updated: 4:52 PM CST

Temperature: 37.2 °F Dew Point: 18 °F Humidity: 45% Wind: West at 2.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 4:52 PM CST

Temperature: 35.3 °F Dew Point: 27 °F Humidity: 72% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 4:52 PM CST

Temperature: 36.3 °F Dew Point: 21 °F Humidity: 54% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 4:52 PM CST

Temperature: 37.4 °F Dew Point: 24 °F Humidity: 59% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: CommuniTree Gardens Nursery, St. Louis, MO

Updated: 4:48 PM CST

Temperature: 37.0 °F Dew Point: 23 °F Humidity: 57% Wind: Calm Pressure: 29.66 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 4:52 PM CST

Temperature: 37.6 °F Dew Point: 20 °F Humidity: 48% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: St. Peters, St. Peters, MO

Updated: 4:52 PM CST

Temperature: 37.8 °F Dew Point: 24 °F Humidity: 57% Wind: West at 2.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 4:52 PM CST

Temperature: 36.3 °F Dew Point: 24 °F Humidity: 62% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 4:52 PM CST

Temperature: 35.8 °F Dew Point: 25 °F Humidity: 64% Wind: Calm Pressure: 29.61 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Stable Ridge Estates, Saint Charles, MO

Updated: 4:51 PM CST

Temperature: 34.3 °F Dew Point: 18 °F Humidity: 51% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 4:41 PM CST

Temperature: 38.3 °F Dew Point: 24 °F Humidity: 55% Wind: Calm Pressure: 30.06 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 4:52 PM CST

Temperature: 37.3 °F Dew Point: 26 °F Humidity: 63% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Ross Ave, St. Louis, MO

Updated: 4:52 PM CST

Temperature: 36.5 °F Dew Point: 23 °F Humidity: 57% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

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

Updated: 4:48 PM CST

Temperature: 36.7 °F Dew Point: 25 °F Humidity: 63% Wind: Calm Pressure: 30.02 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 4:52 PM CST

Temperature: 36.0 °F Dew Point: 25 °F Humidity: 63% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 4:42 PM CST

Temperature: 38.8 °F Dew Point: 23 °F Humidity: 54% Wind: NW at 3.0 mph Pressure: 29.52 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

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

Updated: 4:52 PM CST

Temperature: 38.0 °F Dew Point: 23 °F Humidity: 54% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 4:52 PM CST

Temperature: 37.8 °F Dew Point: 23 °F Humidity: 55% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

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

Updated: 4:52 PM CST

Temperature: 37.8 °F Dew Point: 23 °F Humidity: 54% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 4:50 PM CST

Temperature: 36.1 °F Dew Point: 17 °F Humidity: 45% Wind: West at 1.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

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

Updated: 4:45 PM CST

Temperature: 35.4 °F Dew Point: 23 °F Humidity: 60% Wind: Calm Pressure: 30.07 in Hourly Precipitation: - Windchill: 35 °F Graphs

Location: Ladue Meadows, Creve Coeur, MO

Updated: 4:50 PM CST

Temperature: 36.5 °F Dew Point: 25 °F Humidity: 62% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Riverwood Place, Florissant, MO

Updated: 4:52 PM CST

Temperature: 37.7 °F Dew Point: 26 °F Humidity: 63% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 4:50 PM CST

Temperature: 38.0 °F Dew Point: 22 °F Humidity: 53% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

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

Updated: 4:52 PM CST

Temperature: 36.6 °F Dew Point: 25 °F Humidity: 62% Wind: Calm Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

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

Updated: 4:52 PM CST

Temperature: 35.0 °F Dew Point: 20 °F Humidity: 55% Wind: WNW at 3.0 mph Pressure: 30.44 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 4:52 PM CST

Temperature: 36.0 °F Dew Point: 23 °F Humidity: 59% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 4:50 PM CST

Temperature: 38.3 °F Dew Point: 25 °F Humidity: 58% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 4:52 PM CST

Temperature: 38.8 °F Dew Point: 24 °F Humidity: 54% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
358 PM CST Tue Nov 25 2014 


Short term: (through Wednesday night) 
issued at 348 PM CST Tue Nov 25 2014 


(tonight through Wednesday night) 


Main focus will be the potential for some accumulating snow over the 
region during the day on Wednesday. Low amplitude trough currently 
entering the northern Continental U.S. Will dive southeastward and strengthen 
over the plains tonight. The GFS has shown decent run-to-run 
continuity with this feature and the European model (ecmwf) has come into agreement 
with it's solution that large scale ascent will become more 
widespread as the trough moves into central and northeast Missouri 
toward daybreak. At this time it appears this ascent will be 
concentrated along and west of the Mississippi River between 12-18z 
and then shift east into Illinois during the afternoon. Most of the 
forecast soundings suggest this will be snow during the morning 
hours when the when the low levels will be the coldest and the 
ascent will be the strongest. By nightfall, the upper trough will 
be moving quickly east of the area which will cause subsidence to 
set by evening. Have just slight chances of snow going during the 
evening hours over Illinois. 


MOS guidance temperatures are in good agreement during this period 
and generally followed. High temperatures tomorrow will be warm 
enough to cause the snow to mix with or change over to rain which 
will cut back on total snowfall amounts, particularly along and 
south of I-70. Did not change going snow amounts too much. Still 
appears that northeast Missouri will get around 1 inch of snowfall 
with lesser amounts to the south centered along the Mississippi 
River. 


Britt 


Long term: (wednesday through next tuesday) 
issued at 348 PM CST Tue Nov 25 2014 


(thursday and friday) 


Upper pattern will gradually flatten out and temperatures will begin 
to warm back up during this period as the models are in good 
agreement that surface high will pass through the area on Thursday 
night. By Friday, south to southwesterly winds will advect warmer 
air into the area which bring temperatures back to normal. 


(Saturday through next tuesday) 


GFS and European model (ecmwf) still agree that upper pattern will be zonal over the 
weekend with a cold front moving south across the County Warning Area on Saturday 
night and Sunday. Still looks like chances for precipitation will 
increase along the the front by late in the weekend as both models 
show a shortwave wave trough moving through the area on Sunday 
night. Then model solutions become more divergent by early next 
week as the GFS is slightly more southwesterly aloft with an 
approaching storm system whereas the European model (ecmwf) stays more zonal. 
Temperatures ahead of the front on Saturday still look like they 
will be about 10 degree above normal with 850mb temps around +10c. 
Then temperatures will be closer to normal behind the front as 
coldest air will not be able to come down because of the zonal 
flow. 


Britt 


&& 


Aviation: (for the 18z tafs through 18z Wednesday afternoon) 
issued at 1115 am CST Tue Nov 25 2014 


VFR and dry conditions expected thru 12z tues. Clouds will 
gradually move into the region, thicken and lower thru this 
period. Winds will gradually back to swly this afternoon and 
become sely late tonight. Precip is expected to begin as all snow 
at all terminals tues mid to late morning depending on site. 
Latest guidance suggests cou will change to rain around 18z, while 
uin will remain snow thru the afternoon. Much more uncertainty 
exists for sus/cps with the sfc fnt in the region, but may change 
to a rasn mix in the afternoon. 


Specifics for kstl: VFR and dry thru 15z tues. Winds will be aob 8 
kts and gradually back and become light and vrb tonight. Winds 
will pick up out of the southeast tues morning. Precip is expected to 
start as snow and possibly mix with rain during the late afternoon. 
However, have low confidence in precip type during the afternoon. 


Tilly 


&& 


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.