Saint Peters, Missouri Weather Conditions

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Current Conditions

  • 55°
  • Mostly Cloudy
  • Wind: SW 10 mph
  • Humidity: 43%
  • Visibility: 10.0 miles
  • Dew Point: 33°
  • Pressure: 30.24 in. +

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Next 12 Hours

10  am
1  pm
4  pm
7  pm
10  pm
Partly Cloudy
Partly Cloudy
Overcast
Overcast
Overcast
Overcast
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
54°
61°
63°
61°
55°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of Rain
  • High: 64 °
  • Low: 39 °
  • Chance of Rain
  • Friday
  • Partly Cloudy
  • High: 68 °
  • Low: 43 °
  • Partly Cloudy
  • Saturday
  • Mostly Cloudy
  • High: 72 °
  • Low: 46 °
  • Mostly Cloudy
  • Sunday
  • Mostly Cloudy
  • High: 73 °
  • Low: 55 °
  • Mostly Cloudy
  • Monday
  • Chance of a Thunderstorm
  • High: 72 °
  • Low: 54 °
  • Chance of T-Storms

Forecast for Saint Peters, Missouri

Updated: 10:00 AM CDT on April 17, 2014

  • Thursday

    Partly cloudy in the morning, then overcast. High of 64F. Winds from the WSW at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Mostly cloudy with a chance of rain. Low of 39F. Winds less than 5 mph. Chance of rain 30%.

  • Friday

    Partly cloudy. Fog early. High of 68F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy. Low of 43F. Winds less than 5 mph.

  • Saturday

    Clear in the morning, then overcast. High of 72F. Winds from the SE at 5 to 15 mph.

  • Saturday Night

    Overcast in the evening, then partly cloudy. Low of 46F. Winds from the SSE at 5 to 10 mph.

  • Sunday

    Mostly cloudy in the morning, then overcast. Fog early. High of 73F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Mostly cloudy with a chance of rain after midnight. Low of 55F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with a chance of rain in the morning, then overcast with a chance of a thunderstorm and rain. Fog early. High of 72F. Winds from the SW at 5 to 10 mph. Chance of rain 50%.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 54F. Winds from the West at 5 to 10 mph shifting to the NNW after midnight. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Tuesday

    Partly cloudy. High of 72F. Winds from the North at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy. High of 77F. Winds from the SE at 5 to 15 mph.

  • Wednesday Night

    Partly cloudy. Low of 59F. Winds from the SSE at 10 to 15 mph.

  • Thursday

    Partly cloudy. High of 79F. Breezy. Winds from the South at 15 to 20 mph.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm. Low of 63F. Winds from the South at 10 to 15 mph. Chance of rain 20%.

  • Friday

    Partly cloudy. High of 73F. Winds from the SSW at 5 to 10 mph.

  • Friday Night

    Clear. Low of 54F. Winds less than 5 mph.

  • Saturday

    Clear. High of 66F. Winds from the West at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 46F. Winds less than 5 mph.

  • Sunday

    Clear. High of 63F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 46F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Danielle Downs, St. Peters, MO

Updated: 10:27 AM CDT

Temperature: 60.6 °F Dew Point: 38 °F Humidity: 45% Wind: SSW at 2.2 mph Pressure: 30.13 in Hourly Precipitation: 0.00 in Graphs

Location: Harvester, St. Charles, MO

Updated: 10:15 AM CDT

Temperature: 57.6 °F Dew Point: 39 °F Humidity: 50% Wind: South at 1.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Graphs

Location: Tanglewood, Saint Peters, MO

Updated: 10:27 AM CDT

Temperature: 55.1 °F Dew Point: 38 °F Humidity: 52% Wind: NW at 2.9 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: West Drive, St. Peters, MO

Updated: 10:27 AM CDT

Temperature: 55.2 °F Dew Point: 37 °F Humidity: 48% Wind: SW at 2.0 mph Pressure: 30.28 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 10:26 AM CDT

Temperature: 57.6 °F Dew Point: 38 °F Humidity: 47% Wind: South at 6.0 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Graphs

Location: Saint Peters, MO

Updated: 10:27 AM CDT

Temperature: 56.0 °F Dew Point: 37 °F Humidity: 48% Wind: WNW at 1.0 mph Pressure: 30.29 in Hourly Precipitation: 0.00 in Graphs

Location: Historic Saint Charles, Saint Charles, MO

Updated: 10:25 AM CDT

Temperature: 55.4 °F Dew Point: 38 °F Humidity: 52% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Graphs

Location: Lindenwood, St. Charles, MO

Updated: 10:26 AM CDT

Temperature: 57.3 °F Dew Point: 36 °F Humidity: 45% Wind: Calm Pressure: 30.27 in Hourly Precipitation: 0.00 in Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 10:27 AM CDT

Temperature: 58.1 °F Dew Point: 34 °F Humidity: 41% Wind: West at 4.7 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 10:27 AM CDT

Temperature: 58.3 °F Dew Point: 36 °F Humidity: 43% Wind: South at 2.9 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Graphs

Location: Earth City, Earth City, MO

Updated: 11:15 AM EDT

Temperature: 57.9 °F Dew Point: 36 °F Humidity: 44% Wind: WNW at 4.0 mph Pressure: 30.18 in Hourly Precipitation: 0.00 in Graphs

Location: St. Peters, St. Peters, MO

Updated: 10:25 AM CDT

Temperature: 55.0 °F Dew Point: 38 °F Humidity: 53% Wind: WNW at 4.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 10:26 AM CDT

Temperature: 57.8 °F Dew Point: 39 °F Humidity: 49% Wind: SSW at 5.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 10:27 AM CDT

Temperature: 63.1 °F Dew Point: 36 °F Humidity: 36% Wind: SW at 4.0 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 10:14 AM CDT

Temperature: 56.3 °F Dew Point: 36 °F Humidity: 47% Wind: SW at 5.0 mph Pressure: 30.22 in Hourly Precipitation: 0.00 in Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 10:13 AM CDT

Temperature: 56.5 °F Dew Point: 37 °F Humidity: 48% Wind: East at 5.8 mph Pressure: 30.16 in Hourly Precipitation: - Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 10:27 AM CDT

Temperature: 56.8 °F Dew Point: 36 °F Humidity: 45% Wind: SE at 5.0 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Graphs

Location: Maryland Heights, St Louis, MO

Updated: 10:17 AM CDT

Temperature: 57.5 °F Dew Point: 36 °F Humidity: 45% Wind: ESE at 9.0 mph Pressure: 29.59 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:13 AM CDT

Temperature: 55.1 °F Dew Point: 36 °F Humidity: 49% Wind: SW at 6.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:27 AM CDT

Temperature: 56.7 °F Dew Point: 38 °F Humidity: 50% Wind: West at 1.4 mph Pressure: 30.42 in Hourly Precipitation: 0.00 in Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 10:25 AM CDT

Temperature: 58.8 °F Dew Point: 28 °F Humidity: 31% Wind: NW at 5.0 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:17 AM CDT

Temperature: 58.1 °F Dew Point: 35 °F Humidity: 42% Wind: SW at 3.7 mph Pressure: 30.17 in Hourly Precipitation: - Graphs

Location: Ladue Meadows, Creve Coeur, MO

Updated: 10:27 AM CDT

Temperature: 61.5 °F Dew Point: 40 °F Humidity: 45% Wind: South at 3.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: Riverwood Place, Florissant, MO

Updated: 10:27 AM CDT

Temperature: 57.4 °F Dew Point: 38 °F Humidity: 48% Wind: West at 5.0 mph Pressure: 30.27 in Hourly Precipitation: 0.00 in Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 10:25 AM CDT

Temperature: 55.1 °F Dew Point: 36 °F Humidity: 48% Wind: West at 5.0 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:27 AM CDT

Temperature: 55.9 °F Dew Point: 38 °F Humidity: 52% Wind: SW at 7.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 10:27 AM CDT

Temperature: 55.0 °F Dew Point: 35 °F Humidity: 46% Wind: SW at 5.0 mph Pressure: 30.13 in Hourly Precipitation: 0.00 in Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 10:27 AM CDT

Temperature: 56.2 °F Dew Point: 36 °F Humidity: 47% Wind: West at 1.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 10:25 AM CDT

Temperature: 53.8 °F Dew Point: 36 °F Humidity: 50% Wind: East at 6.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Graphs

Location: DW6447, OFallon, MO

Updated: 10:15 AM CDT

Temperature: 55.8 °F Dew Point: 35 °F Humidity: 45% Wind: WSW at 1.0 mph Pressure: 29.59 in Hourly Precipitation: 0.00 in Graphs

Location: Winding Trails, Ballwin, MO

Updated: 10:23 AM CDT

Temperature: 57.2 °F Dew Point: 38 °F Humidity: 48% Wind: WSW at 1.0 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 10:23 AM CDT

Temperature: 58.7 °F Dew Point: 38 °F Humidity: 47% Wind: SW at 2.5 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in 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 
652 am CDT Thu Apr 17 2014 


Short term: (through tonight) 
issued at 300 am CDT Thu Apr 17 2014 


A weak cold front will move into the area today and could serve as 
the focus for scattered light rain showers during the afternoon 
and evening. Convergence along the front is not very impressive 
and the low levels are somewhat dry, but the combination of 
increasing large scale ascent ahead of an approaching vort Max 
along with the presence of a surface boundary merits slight chance 
to chance pops. 


Kanofsky 


Long term: (tomorrow through wednesday) 
issued at 300 am CDT Thu Apr 17 2014 


For the last 4 nights in a row, no two consecutive 00z runs of the 
European model (ecmwf)/GFS/Gem have had the same solution for upcoming frontal 
systems, and there has also been a fair amount of variability 
between models regarding the location of important features such as 
upper vorticity maxima and surface boundaries. The latest runs keep 
a strong vort Max and its surface low up near the US/Canada border 
on Fri night and Sat, therefore precipitation is no longer expected 
with this system across the lsx County Warning Area. The dominant feature for 
Fri-Sat now appears to be ridging. Winds should eventually turn 
southerly, bringing warmer air into the region for Sat and 
reinforcing a baroclinic zone extending from the US/Canada system 
as it starts to occlude. A broad trough moving through the Desert 
Southwest could bring precipitation to the area on sun/Mon. Chance 
pops remain an acceptable compromise in light of the model 
uncertainty. Confidence remains low in the forecast for this 
weekend and beyond. 


Kanofsky 


&& 


Aviation: (for the 12z tafs through 12z Friday morning) 
issued at 638 am CDT Thu Apr 17 2014 


Weak cold front currently on the door step of kcou and KUIN will 
drift east today, and not reach the stl Metro area until 21-00z 
time frame. Post frontal band of MVFR SC with bases 1-2kft has 
worked into northern Missouri, and over the last few hours higher 
clouds have obscured their movement on satellite imagery. However, 
surface ob trends as well as RUC low level relative humidity progs suggest that 
this cloud deck will reach KUIN shortly, and then dissipate by 
mid-late morning. With this expected trend, cloud deck should 
remain N of kcou, and not threaten stl area. Otherwise, cloud 
trends today and into this evening should be dominated by a 
thickening mid deck with bases aoa 5kft. We are expecting a few 
Post frontal showers, but given the hit and miss coverage that is 
anticipated have not included in tafs at this time. 


Specifics for kstl: weak cold front currently over mid MO not 
expected to reach the area until the 21-23z time frame, with winds 
shifting slowly to the northwest once fropa occurs. Otherwise, 
looking for a gradual increase in mid clouds over the area, with 
bases remaining aoa 5kft. A few showers are possible in the 
evening, but as mentioned in the primary aviation discussion have 
omitted from this taf set due to the spotty nature of the precip. 


Truett 


&& 


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


$$ 


Weather forecast office lsx 



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