Saint Peters, Missouri Weather Conditions

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Current Conditions

  • 60°
  • Clear
  • Wind: Calm
  • Humidity: 86%
  • Visibility: 9.0 miles
  • Dew Point: 56°
  • Pressure: 29.75 in. -

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Next 12 Hours

2  am
5  am
8  am
11  am
2  pm
Partly Cloudy
Partly Cloudy
Overcast
Overcast
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Thunderstorm
T-storms
63°
59°
61°
67°
70°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Thunderstorm
  • High: 71 °
  • Low: 52 °
  • T-Storms
  • Monday
  • Chance of Rain
  • High: 63 °
  • Low: 42 °
  • Chance of Rain
  • Tuesday
  • Clear
  • High: 65 °
  • Low: 47 °
  • Clear
  • Wednesday
  • Partly Cloudy
  • High: 67 °
  • Low: 42 °
  • Partly Cloudy
  • Thursday
  • Clear
  • High: 63 °
  • Low: 40 °
  • Clear

Forecast for Saint Peters, Missouri

Updated: 1:18 AM CDT on January 19, 2015

  • Sunday

    Scattered thunderstorms in the morning, then mainly cloudy during the afternoon with thunderstorms likely. A few storms may be severe. High 71F. Winds N at 5 to 10 mph. Chance of rain 80%.

  • Sunday Night

    Showers early, becoming a steady rain late. Thunder possible. Low 52F. Winds WSW at 10 to 20 mph. Chance of rain 70%.

  • Monday

    Rain showers early with some sunshine later in the day. High 63F. Winds WNW at 15 to 25 mph. Chance of rain 70%.

  • Monday Night

    Some clouds early will give way to generally clear conditions overnight. Low 42F. Winds W at 10 to 20 mph.

  • Tuesday

    Sunshine and some clouds. High near 65F. Winds W at 10 to 20 mph.

  • Tuesday Night

    Partly cloudy skies early followed by increasing clouds with showers developing later at night. Low 47F. Winds WSW at 5 to 10 mph. Chance of rain 40%.

  • Wednesday

    Sunshine and clouds mixed. High 67F. Winds NW at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Low 42F. Winds N at 5 to 10 mph.

  • Thursday

    Sun and a few passing clouds. High 63F. Winds NNW at 10 to 15 mph.

  • Thursday Night

    Mostly clear skies. Low near 40F. Winds N at 5 to 10 mph.

  • Friday

    Sunshine and some clouds. High near 65F. Winds N at 5 to 10 mph.

  • Friday Night

    Cloudy with periods of rain. Low 46F. Winds ENE at 5 to 10 mph. Chance of rain 70%. Rainfall around a quarter of an inch.

  • Saturday

    Cloudy skies early, then partly cloudy in the afternoon. High 63F. Winds NE at 10 to 15 mph.

  • Saturday Night

    Mainly clear. Low 42F. Winds NNE at 5 to 10 mph.

  • Sunday

    A few clouds from time to time. High 66F. Winds NNE at 5 to 10 mph.

  • Sunday Night

    Partly cloudy. Low 44F. Winds light and variable.

  • Monday

    Partly to mostly cloudy. High 66F. Winds N at 5 to 10 mph.

  • Monday Night

    Clear skies. Low 46F. Winds NNE at 5 to 10 mph.

  • Tuesday

    Partly cloudy skies. High 66F. Winds NNE at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low 46F. Winds NE at 5 to 10 mph.

  • Wednesday

    Except for a few afternoon clouds, mainly sunny. High 69F. Winds E at 5 to 10 mph.

  • Wednesday Night

    A few clouds from time to time. Low 48F. Winds SSE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: St. Peters, St. Peters, MO

Updated: 2:52 AM CDT

Temperature: 62.4 °F Dew Point: 58 °F Humidity: 84% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 2:51 AM CDT

Temperature: 63.9 °F Dew Point: 61 °F Humidity: 89% Wind: Calm Pressure: 29.57 in Hourly Precipitation: 0.00 in Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 2:42 AM CDT

Temperature: 60.1 °F Dew Point: 56 °F Humidity: 88% Wind: Calm Pressure: 29.78 in Hourly Precipitation: - Graphs

Location: Park Charles South, Saint Peters, MO

Updated: 2:46 AM CDT

Temperature: 66.4 °F Dew Point: 56 °F Humidity: 74% Wind: North at - Pressure: 29.85 in Hourly Precipitation: - Graphs

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

Updated: 2:42 AM CDT

Temperature: 59.2 °F Dew Point: 56 °F Humidity: 90% Wind: Calm Pressure: 29.60 in Hourly Precipitation: - Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 2:52 AM CDT

Temperature: 62.5 °F Dew Point: 55 °F Humidity: 76% Wind: Calm Pressure: 29.71 in Hourly Precipitation: 0.00 in Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 2:38 AM CDT

Temperature: 63.3 °F Dew Point: 58 °F Humidity: 84% Wind: Calm Pressure: 29.64 in Hourly Precipitation: - Graphs

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

Updated: 2:52 AM CDT

Temperature: 63.1 °F Dew Point: 59 °F Humidity: 86% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 2:41 AM CDT

Temperature: 62.4 °F Dew Point: 55 °F Humidity: 77% Wind: Calm Pressure: 29.54 in Hourly Precipitation: - Graphs

Location: Public Works Department Building, OFallon, MO

Updated: 2:50 AM CDT

Temperature: 64.1 °F Dew Point: 57 °F Humidity: 78% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Graphs

Location: West Drive, St. Peters, MO

Updated: 2:52 AM CDT

Temperature: 67.7 °F Dew Point: 59 °F Humidity: 71% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

Location: Forrest Park Subdivision, OFallon, MO

Updated: 2:52 AM CDT

Temperature: 61.2 °F Dew Point: 58 °F Humidity: 88% Wind: Calm Pressure: 29.25 in Hourly Precipitation: 0.00 in Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 2:50 AM CDT

Temperature: 60.9 °F Dew Point: 55 °F Humidity: 82% Wind: NE at 1.6 mph Pressure: 29.63 in Hourly Precipitation: 0.00 in Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 2:52 AM CDT

Temperature: 63.2 °F Dew Point: 58 °F Humidity: 83% Wind: Calm Pressure: 29.66 in Hourly Precipitation: 0.00 in Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 2:52 AM CDT

Temperature: 63.9 °F Dew Point: 58 °F Humidity: 80% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 2:50 AM CDT

Temperature: 64.1 °F Dew Point: 58 °F Humidity: 81% Wind: East at 1.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 2:52 AM CDT

Temperature: 61.3 °F Dew Point: 58 °F Humidity: 88% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Graphs

Location: Ridgetop Estates, OFallon, MO

Updated: 2:39 AM CDT

Temperature: 60.6 °F Dew Point: 56 °F Humidity: 86% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 2:46 AM CDT

Temperature: 66.4 °F Dew Point: 48 °F Humidity: 52% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 2:52 AM CDT

Temperature: 62.0 °F Dew Point: 57 °F Humidity: 84% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Graphs

Location: Windwood,Nic S., St. Peters, MO

Updated: 2:42 AM CDT

Temperature: 65.5 °F Dew Point: 56 °F Humidity: 72% Wind: Calm Pressure: 29.50 in Hourly Precipitation: - Graphs

Location: Harvester, St. Charles, MO

Updated: 2:46 AM CDT

Temperature: 61.3 °F Dew Point: 57 °F Humidity: 86% Wind: Calm Pressure: 29.73 in Hourly Precipitation: 0.00 in Graphs

Location: Carriage Cove Court, Saint Charles, MO

Updated: 2:51 AM CDT

Temperature: 64.0 °F Dew Point: 56 °F Humidity: 74% Wind: North at - Pressure: 29.68 in Hourly Precipitation: - Graphs

Location: Magnolia, OFallon, MO

Updated: 2:41 AM CDT

Temperature: 59.2 °F Dew Point: 56 °F Humidity: 90% Wind: Calm Pressure: 29.47 in Hourly Precipitation: - Graphs

Location: Woodcliff, Saint Charles, MO

Updated: 2:42 AM CDT

Temperature: 62.1 °F Dew Point: 62 °F Humidity: 98% Wind: Calm Pressure: 29.39 in Hourly Precipitation: - Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 2:50 AM CDT

Temperature: 64.0 °F Dew Point: 58 °F Humidity: 80% Wind: SW at 1.0 mph Pressure: 29.64 in Hourly Precipitation: 0.00 in Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 2:50 AM CDT

Temperature: 64.0 °F Dew Point: 56 °F Humidity: 74% Wind: North at - Pressure: 29.75 in Hourly Precipitation: 0.00 in Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 2:52 AM CDT

Temperature: 63.1 °F Dew Point: 58 °F Humidity: 83% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Little Oaks Drive, O'Fallon, MO

Updated: 2:50 AM CDT

Temperature: 65.1 °F Dew Point: 58 °F Humidity: 76% Wind: North at - Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Talbridge, St. Charles, MO

Updated: 2:52 AM CDT

Temperature: 65.5 °F Dew Point: 57 °F Humidity: 74% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 2:40 AM CDT

Temperature: 66.1 °F Dew Point: 57 °F Humidity: 72% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 2:35 AM CDT

Temperature: 61.9 °F Dew Point: 57 °F Humidity: 83% Wind: Calm Pressure: 29.73 in Hourly Precipitation: 0.00 in Graphs

Location: Conch Terrace, O'Fallon, MO

Updated: 2:51 AM CDT

Temperature: 66.0 °F Dew Point: 57 °F Humidity: 73% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 2:51 AM CDT

Temperature: 63.2 °F Dew Point: 55 °F Humidity: 74% Wind: Calm Pressure: 29.46 in Hourly Precipitation: 0.00 in Graphs

Location: Lindenwood, St. Charles, MO

Updated: 2:52 AM CDT

Temperature: 61.3 °F Dew Point: 58 °F Humidity: 88% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Doris Avenue, O'Fallon, MO

Updated: 2:51 AM CDT

Temperature: 64.9 °F Dew Point: 57 °F Humidity: 75% Wind: North at - Pressure: 29.85 in Hourly Precipitation: - Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 2:52 AM CDT

Temperature: 59.2 °F Dew Point: 59 °F Humidity: 99% Wind: Calm Pressure: 30.48 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 2:52 AM CDT

Temperature: 59.9 °F Dew Point: 57 °F Humidity: 90% Wind: Calm Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 2:50 AM CDT

Temperature: 60.6 °F Dew Point: 56 °F Humidity: 86% Wind: Calm Pressure: 29.73 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 
1206 am CDT sun Apr 19 2015 


Short term: (through tonight) 
issued at 353 PM CDT Sat Apr 18 2015 


A vigorous upper low was over eastern Colorado this afternoon as a weak 
upper ridge was moving off to our east. This is resulting in 
increasing southerly upper flow and moisture thru the column over 
our region. A strong upper level disturbance was grazing the Texas 
Gulf of Mexico coast. A weak southeast flow at the surface 
prevailed with abundant mostly high level cloud cover over our 
region, resulting in mostly cloudy skies. Temps were once again 
seasonably warm with readings in the 75-80 range. A broken band of 
rain showers/thunderstorms and rain was over western-central MO moving to the north- 
northeast. 


The broken band of rain showers/thunderstorms and rain is anticipated to continue moving north-northeast 
and just edge the western County Warning Area thru portions of central and northeast 
MO thru this evening. Isolated rain showers/thunderstorms and rain is possible further east 
towards stl Metro as some upper level support moves in and given 
moisture rich column. 


That strong upper level disturbance from the Texas Gulf Coast will race 
north-NE into our region late tonight and result in a surface low 
reflection over the lower Ohio Valley. Look for an area of rain to 
develop with some imbedded thunderstorms and rain possible initially thru southeast MO 
and far southern Illinois towards midnight and then expand northward 
towards stl Metro and southwest Illinois late. Elsewhere, rain chances 
will be pretty meager overnight with token low chance pops. 


Min temps should be in the range of persistence or a bit warmer, 
dropping to around 60 degrees, which is on the high-end of MOS. 


Tes 


Long term: (sunday through next saturday) 
issued at 353 PM CDT Sat Apr 18 2015 


(sunday through tuesday) 


Focus thru this period will be pops on sun into Mon. 


Have continued a slow trend based on latest mdl, radar and Sat 
trends. Still, am concerned going forecast is too fast on sun. 
Believe the mdl solns are opening the upper low too quickly and 
generating/lifting the sfc low nwd thru the region too fast. 
However, it is difficult to say if this is true, how fast it is. 
There is some question about strong to possibly severe storms on 
sun. Latest mdl guidance suggests the first batch of rain moving out 
of the ern County Warning Area during the early afternoon hours, while a second area 
of precip will be headed twd the wrn portions of the County Warning Area associated 
with the main trof. This may provide a very brief window where 
pockets of insolation could develop and support a few strong 
updrafts. With cape around 1000 j/kg or less and deep layer shear at 
20 kts or less, do not currently anticipate anything organized 
across the County Warning Area. However, with a S/W progd just S of the cwa, main 
question will be the nrn extent of the svr threat. 


Have also added some slight chance pops for tues as the home grown 
mdl solns track the S/W rounding the base of the trof across the srn 
portions of the County Warning Area. If these mdls trend twd the European model (ecmwf)/Gem solns, 
these pops can be removed. In the meantime, felt a low pop was 
needed. 


As for temps, trended cooler for sun, but warmer Sun night with 
ample cloud cover. However, there may be enuf breaks in the clouds 
on sun that updated forecasts may need to trend warmer. Thru tues, 
have trended warmer only due to the fact that mdls seem to struggle 
to go warm enuf lately. 


(Wednesday through saturday) 


Focus continues to be rain thru the extd. Kept low pops thru thurs 
night with a backdoor fnt across the region. Is some question to the 
placement of this fnt as well as available moisture and forcing. 
Kept pops in low chance category beyond to keep some flavor of the 
prev forecast as well as trending twd the latest guidance and noting 
uncertainty. 


With questions in precip mentioned above, have trended slightly 
warmer than guidance thru the period. 


Tilly 


&& 


Aviation: (for the 06z tafs through 06z Sunday night) 
issued at 1157 PM CDT Sat Apr 18 2015 


Specifics for KUIN, kcou: an area of rain with embedded 
thunderstorms should develop and spread northward overnight as a 
low pressure system lifts northeastward through the area. Timing 
on afternoon thunderstorms is somewhat uncertain. A cold front 
will reach kcou and KUIN near the end of the 24hr taf period. Just 
beyond the end of the 24hr taf period, BUFKIT soundings suggest 
MVFR cigs and gusty northwest winds behind the cold front. 


Specifics for kstl, ksus, kcps: an area of rain with embedded 
thunderstorms should develop and spread northward overnight as a 
low pressure system lifts northeastward through the area. 
Thunderstorms are also expected during the afternoon on Sunday. A 
cold front will move through kstl late in the 30hr taf period. 
BUFKIT soundings suggest MVFR cigs and gusty northwest winds 
behind the cold front. 


Kanofsky 


&& 


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


$$ 


Weather forecast office lsx 



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