Saint Peters, Missouri Weather Conditions

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Current Conditions

  • 29°
  • Overcast
  • Wind: ENE 5 mph
  • Humidity: 47%
  • Visibility: 10.0 miles
  • Dew Point: 11°
  • Pressure: 30.33 in. 0
  • Heat Index: 24

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Partly Cloudy
Partly Cloudy
Overcast
Overcast
Snow Showers
Snow Showers
Snow Showers
Snow Showers
Snow Showers
Snow Showers
28°
24°
24°
24°
25°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Overcast
  • High: 34 °
  • Low: 6 °
  • Overcast
  • Saturday
  • Clear
  • High: 22 °
  • Low: 17 °
  • Clear
  • Sunday
  • Snow Showers
  • High: 31 °
  • Low: 25 °
  • Snow Showers
  • Monday
  • Overcast
  • High: 43 °
  • Low: 27 °
  • Overcast
  • Tuesday
  • Ice Pellets
  • High: 50 °
  • Low: 30 °
  • Ice Pellets

Forecast for Saint Peters, Missouri

Updated: 4:03 PM CST on January 11, 2016

  • Thursday

    Snow showers. Lows overnight in the low 20s.

  • Thursday Night

    Snow showers. Low 22F. Winds light and variable. Chance of snow 50%. Snow accumulations less than one inch.

  • Friday

    Some lingering morning flurries or snow showers. Cloudy. High 34F. Winds NW at 10 to 20 mph.

  • Friday Night

    Clear. Low 6F. Winds NNW at 10 to 15 mph.

  • Saturday

    Sunny, along with a few afternoon clouds. High 22F. Winds light and variable.

  • Saturday Night

    Cloudy skies. Low 17F. Winds ESE at 5 to 10 mph.

  • Sunday

    Variable clouds with snow showers. High 31F. Winds SSE at 10 to 15 mph. Chance of snow 60%. Snow accumulations less than one inch.

  • Sunday Night

    Considerable cloudiness. Low near 25F. Winds S at 5 to 10 mph.

  • Monday

    Cloudy. High 43F. Winds light and variable.

  • Monday Night

    Partly cloudy skies early then becoming cloudy with periods of light freezing rain later at night. Low 27F. Winds light and variable. Chance of precip 50%.

  • Tuesday

    Light freezing rain in the morning...becoming partly cloudy. High around 50F. Winds W at 10 to 15 mph. Chance of precip 40%.

  • Tuesday Night

    Partly cloudy skies early then becoming cloudy with periods of light freezing rain later at night. Low around 30F. Winds W at 5 to 10 mph. Chance of precip 40%.

  • Wednesday

    Intervals of clouds and sunshine. High 51F. Winds NNW at 5 to 10 mph.

  • Wednesday Night

    A few clouds overnight. Low around 30F. Winds E at 5 to 10 mph.

  • Thursday

    Partly cloudy skies. High 59F. Winds SSE at 10 to 20 mph.

  • Thursday Night

    Partly cloudy skies. Low 44F. Winds S at 10 to 20 mph.

  • Friday

    Partly cloudy skies. High 61F. Winds SW at 10 to 20 mph.

  • Friday Night

    Partly cloudy skies. Low 41F. Winds WSW at 5 to 10 mph.

  • Saturday

    Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 61F. Winds WNW at 10 to 15 mph.

  • Saturday Night

    Mostly clear skies. Low 37F. Winds light and variable.

  • Sunday

    Sunshine and clouds mixed. High 58F. Winds WNW at 10 to 15 mph.

  • Sunday Night

    Partly cloudy skies. Low around 35F. Winds NW at 5 to 10 mph.

Severe Weather Alert Descriptions

 Local Storm Report 



02/10/2016 0530 PM

6 miles WSW of O'Fallon, St Charles County.

Snow m1.0 inch, reported by trained spotter.


            Storm total




02/10/2016 0601 PM

Weldon Spring, St Charles County.

Snow m0.8 inch, reported by NWS employee.


            Storm total




02/10/2016 0608 PM

Harvester, St Charles County.

Snow m0.8 inch, reported by amateur radio.


            Storm total




02/10/2016 0608 PM

Harvester, St Charles County.

Snow m0.8 inch, reported by amateur radio.


            Storm total





02/10/2016 0608 PM

Harvester, St Charles County.

Snow m0.8 inch, reported by amateur radio.


            Storm total





02/10/2016 0601 PM

Weldon Spring, St Charles County.

Snow m0.8 inch, reported by NWS employee.


            Storm total





02/10/2016 0530 PM

6 miles WSW of O'Fallon, St Charles County.

Snow m1.0 inch, reported by trained spotter.


            Storm total





02/10/2016 0126 PM

O'Fallon, St Charles County.

Snow m0.7 inch, reported by trained spotter.





02/10/2016 0115 PM

6 miles WSW of O'Fallon, St Charles County.

Snow m0.7 inch, reported by public.




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Saint Peters, Saint Peters, MO

Updated: 5:10 PM CST

Temperature: 28.0 °F Dew Point: 12 °F Humidity: 50% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Sunny Hill Estates, St. Peters, MO

Updated: 5:10 PM CST

Temperature: 29.3 °F Dew Point: 11 °F Humidity: 45% Wind: East at 1.1 mph Pressure: 29.65 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Saint Peters Hills, Saint Peters, MO

Updated: 5:10 PM CST

Temperature: 28.9 °F Dew Point: 5 °F Humidity: 35% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Hunters Valley, Saint Peters, MO

Updated: 5:02 PM CST

Temperature: 28.8 °F Dew Point: 11 °F Humidity: 46% Wind: NNE at 1.7 mph Pressure: 30.32 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Spencer Valley, Saint Peters, MO

Updated: 5:09 PM CST

Temperature: 28.5 °F Dew Point: 12 °F Humidity: 50% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Park Charles South, Saint Peters, MO

Updated: 5:06 PM CST

Temperature: 29.1 °F Dew Point: 13 °F Humidity: 53% Wind: North at - Pressure: 30.37 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Snow Hill Drive, Saint Peters, MO

Updated: 5:07 PM CST

Temperature: 29.1 °F Dew Point: 14 °F Humidity: 53% Wind: North at - Pressure: 30.38 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

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

Updated: 4:55 PM CST

Temperature: 29.7 °F Dew Point: 14 °F Humidity: 51% Wind: Calm Pressure: 30.16 in Hourly Precipitation: - Windchill: 30 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 5:09 PM CST

Temperature: 28.8 °F Dew Point: 5 °F Humidity: 36% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 5:10 PM CST

Temperature: 30.2 °F Dew Point: 15 °F Humidity: 52% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 5:03 PM CST

Temperature: 28.6 °F Dew Point: 14 °F Humidity: 53% Wind: NW at 1.1 mph Pressure: 30.20 in Hourly Precipitation: - Windchill: 29 °F Graphs

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

Updated: 5:10 PM CST

Temperature: 27.3 °F Dew Point: -1 °F Humidity: 28% Wind: East at 3.4 mph Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: McClay Trails, Saint Charles, MO

Updated: 4:55 PM CST

Temperature: 28.9 °F Dew Point: 11 °F Humidity: 47% Wind: Calm Pressure: 30.08 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Madison Park, Cottleville, MO

Updated: 5:10 PM CST

Temperature: 29.1 °F Dew Point: 4 °F Humidity: 33% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

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

Updated: 5:10 PM CST

Temperature: 29.8 °F Dew Point: 13 °F Humidity: 49% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: 30 °F Graphs

Location: Spencer Creek, Saint Peters, MO

Updated: 5:10 PM CST

Temperature: 29.1 °F Dew Point: 4 °F Humidity: 34% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Public Works Department Building, OFallon, MO

Updated: 4:55 PM CST

Temperature: 29.4 °F Dew Point: 13 °F Humidity: 49% Wind: East at 2.0 mph Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Aspen Pointe, Saint Peters, MO

Updated: 5:10 PM CST

Temperature: 28.6 °F Dew Point: -6 °F Humidity: 21% Wind: Calm Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Tanglewood, Saint Peters, MO

Updated: 5:09 PM CST

Temperature: 28.6 °F Dew Point: 10 °F Humidity: 46% Wind: Calm Pressure: 29.73 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 5:10 PM CST

Temperature: 27.9 °F Dew Point: 12 °F Humidity: 49% Wind: Calm Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Windsor Place, Cottleville, MO

Updated: 5:06 PM CST

Temperature: 28.9 °F Dew Point: 13 °F Humidity: 51% Wind: Calm Pressure: 30.19 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 5:10 PM CST

Temperature: 28.2 °F Dew Point: 8 °F Humidity: 42% Wind: WNW at 12.3 mph Pressure: 30.20 in Hourly Precipitation: 0.00 in Windchill: 18 °F Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 5:10 PM CST

Temperature: 28.5 °F Dew Point: 12 °F Humidity: 50% Wind: SSW at 2.0 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 5:10 PM CST

Temperature: 28.0 °F Dew Point: 7 °F Humidity: 40% Wind: ENE at 1.8 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 5:10 PM CST

Temperature: 27.6 °F Dew Point: 12 °F Humidity: 52% Wind: East at 1.0 mph Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Ridgetop Estates, OFallon, MO

Updated: 5:03 PM CST

Temperature: 28.8 °F Dew Point: 11 °F Humidity: 47% Wind: NE at 1.7 mph Pressure: 30.36 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 5:04 PM CST

Temperature: 28.8 °F Dew Point: -8 °F Humidity: 19% Wind: ENE at 1.0 mph Pressure: 30.36 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 5:10 PM CST

Temperature: 28.2 °F Dew Point: 8 °F Humidity: 41% Wind: East at 3.5 mph Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 24 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 5:08 PM CST

Temperature: 28.9 °F Dew Point: 15 °F Humidity: 56% Wind: ENE at 3.0 mph Pressure: 30.33 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Carriage Cove Court, Saint Charles, MO

Updated: 5:07 PM CST

Temperature: 28.0 °F Dew Point: 17 °F Humidity: 62% Wind: North at - Pressure: 30.21 in Hourly Precipitation: - Windchill: 28 °F Graphs

Location: Magnolia, OFallon, MO

Updated: 5:08 PM CST

Temperature: 28.8 °F Dew Point: 14 °F Humidity: 54% Wind: ESE at 1.6 mph Pressure: 30.00 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 5:10 PM CST

Temperature: 28.0 °F Dew Point: 11 °F Humidity: 48% Wind: ESE at 6.8 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: 21 °F Graphs

Location: Monticello, OFallon, MO

Updated: 5:06 PM CST

Temperature: 28.2 °F Dew Point: 12 °F Humidity: 49% Wind: NE at 3.7 mph Pressure: 30.18 in Hourly Precipitation: - Windchill: 24 °F Graphs

Location: O'Fallon Water Treatment Plant, OFallon, MO

Updated: 5:05 PM CST

Temperature: 27.9 °F Dew Point: 14 °F Humidity: 55% Wind: East at 3.0 mph Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 28 °F Graphs

Location: Renaud Spirit Center, OFallon, MO

Updated: 5:10 PM CST

Temperature: 28.8 °F Dew Point: 15 °F Humidity: 55% Wind: NE at 1.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Windchill: 29 °F Graphs

Location: Woodcliff, Saint Charles, MO

Updated: 5:03 PM CST

Temperature: 29.1 °F Dew Point: 13 °F Humidity: 51% Wind: Calm Pressure: 29.93 in Hourly Precipitation: - Windchill: 29 °F Graphs

Location: Huntington Downs, Saint Charles, MO

Updated: 5:10 PM CST

Temperature: 28.9 °F Dew Point: 12 °F Humidity: 50% Wind: North at - Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 29 °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 
316 PM CST Thursday Feb 11 2016 


Short term: (through late tonight) 
issued at 1230 PM CST Thu Feb 11 2016 


A northwest flow shortwave now dropping southeastward into western 
South Dakota will move quickly through our area tonight. Light snow will 
spread southeastward into northeast MO early this evening, then 
through the St Louis Metro area around midnight. Still looking like 
a quick shot of dry, powdery snow with most places picking up to 1 
inch of accumulation, but there may be a narrow band of 1-2 inches 
extending from near irk southeast through the St Louis Metro area. 
Latest NAM and hrrr model runs have the band a little further west 
than previous model runs. Most of the accumulating snow should 
shift southeast of our forecast area by 12z Friday. Low 
temperatures will be similar to the previous night, and around 5 
degrees below normal. 


Gks 


Long term: (friday through next thursday) 
issued at 316 PM CST Thu Feb 11 2016 


A strong cold front will move southeastward through our forecast 
area on Friday with strengthening winds as the surface pressure 
gradient tightens as a strong 1040-1045 mb surface high builds 
southeastward into the area from the northern plains behind the cold 
front. Temperatures may begin to fall in northeast MO behind the 
front already by Friday afternoon. Much colder temperatures are 
expected for Friday night and Saturday with wind chills down to 
around 10 below zero late Friday night and early Saturday morning 
across northeast MO and west central Illinois. Snow should spread 
southeastward into at least northeast MO and west central Illinois late 
Saturday night as low-mid level warm air advection increases ahead 
of an approaching northern stream shortwave. It still appears that 
the European model (ecmwf) model is a little too quick bringing precipitation into 
our forecast area already be Saturday afternoon and evening with an 
initially very dry boundary layer on the backside of the surface 
ridge. The better chance of precipitation should occur on Sunday as 
a southwesterly low level jet brings increasing low level moisture 
into our area ahead of the shortwave. It is too early to pin down 
exact snow totals, but it initially appears that 2-4 inches is 
possible across northeast MO and west central Illinois with lesser amounts 
of 1-2 inches further south for Saturday night and Sunday. Another 
round of precipitation is expected, mainly on Monday, as a southern 
stream shortwave and associated surface Low Pass south of our area. 
This precipitation should be confined mainly to southeast MO and 
southwest Illinois. With temperatures trending up as we head into the 
next work week there may also be precipitation type issues with a 
mix of snow, sleet and rain possible. Will keep the rest of the 
forecast dry with a warming trend, although the European model (ecmwf) model does 
depict some weaker weather systems bringing a brief period or two of 
light quantitative precipitation forecast to our area. The GFS model is dry for the remainder of 
the period after Monday with a dry cold frontal passage on Tuesday 
afternoon and evening. Both the GFS and European model (ecmwf) models depict a warm 
weather pattern by Thursday with upper level ridging over the region 
along with strong S-swly low level winds likely leading to well 
above normal temperatures. 


Gks 


&& 


Aviation: (for the 18z tafs through 18z Friday afternoon) 
issued at 1237 PM CST Thu Feb 11 2016 


SC has dissipated over taf sites, so will see VFR conditions 
through early this evening as mid and high clouds stream in ahead 
of next clipper system. Timing still similar to last set of tafs 
with snow moving into KUIN/kcou by 02z Friday and stl Metro area 
by 04z Friday. With onset of light snow, will see cigs dip down to 
MVFR with brief IFR visbys as heavier bands of snow move through. 
Snow to taper off between 09z and 10z Friday for taf sites, though 
MVFR cigs to persist. Kcou on western periphery so should see 
MVFR cigs scatter out by 16z Friday. As for winds, to remain from 
the northeast to east as system moves through, then become light 
and variable. By mid morning on Friday, winds to pickup from the 
northwest. 


Specifics for kstl: 
SC has dissipated over Metro area, so will see VFR conditions 
through early this evening as mid and high clouds stream in ahead 
of next clipper system. Timing still similar to last set of tafs 
with snow moving into stl Metro area by 04z Friday. With onset of 
light snow, will see cigs dip down to MVFR with brief IFR visbys 
as heavier bands of snow move through. Snow to taper off by 10z 
Friday, though MVFR cigs to persist for rest of taf forecast 
period. As for winds, to remain from the northeast to east as 
system moves through, then become light and variable by 10z Friday. 
By 17z Friday, winds to pickup from the northwest around 10 kts. 


Byrd 


&& 


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


$$ 


Weather forecast office lsx 






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