Saint Peters, Missouri Weather Conditions

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Current Conditions

  • 73°
  • Mostly Cloudy
  • Wind: WSW 6 mph
  • Humidity: 42%
  • Visibility: 10.0 miles
  • Dew Point: 49°
  • Pressure: 30.02 in. -

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Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
70°
63°
61°
61°
59°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 73 °
  • Low: 55 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 77 °
  • Low: 55 °
  • Clear
  • Sunday
  • Clear
  • High: 82 °
  • Low: 61 °
  • Clear
  • Monday
  • Mostly Cloudy
  • High: 81 °
  • Low: 59 °
  • Mostly Cloudy
  • Tuesday
  • Chance of a Thunderstorm
  • High: 64 °
  • Low: 43 °
  • Chance of T-Storms

Forecast for Saint Peters, Missouri

Updated: 4:00 PM CDT on October 24, 2014

  • Friday

    Partly cloudy in the morning, then clear. High of 73F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 55F. Winds from the SSW at 5 to 10 mph.

  • Saturday

    Clear. High of 77F. Winds from the WNW at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 55F. Winds less than 5 mph.

  • Sunday

    Clear. High of 82F. Winds from the SSE at 5 to 10 mph.

  • Sunday Night

    Partly cloudy. Low of 61F. Winds from the South at 10 to 15 mph.

  • Monday

    Overcast. High of 81F. Breezy. Winds from the SSW at 15 to 20 mph.

  • Monday Night

    Overcast with a chance of a thunderstorm and rain after midnight. Low of 59F. Winds from the SSW at 10 to 15 mph. Chance of rain 40% with rainfall amounts near 0.3 in. possible.

  • Tuesday

    Overcast with a chance of a thunderstorm and rain. High of 64F. Winds from the WNW at 10 to 15 mph. Chance of rain 40%.

  • Tuesday Night

    Partly cloudy. Low of 43F. Winds from the NW at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 66F. Winds less than 5 mph.

  • Wednesday Night

    Partly cloudy. Low of 48F. Winds from the South at 5 to 10 mph.

  • Thursday

    Partly cloudy with a chance of rain. High of 68F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy. Low of 46F. Winds from the NNE at 5 to 10 mph shifting to the NNW after midnight.

  • Friday

    Clear. High of 63F. Winds from the NNW at 10 to 15 mph.

  • Friday Night

    Clear. Low of 48F. Winds from the North at 5 to 10 mph.

  • Saturday

    Partly cloudy. High of 63F. Winds from the East at 5 to 10 mph shifting to the South in the afternoon.

  • Saturday Night

    Clear. Low of 45F. Winds from the South at 5 to 10 mph.

  • Sunday

    Clear. High of 64F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 50F. Winds from the South at 5 to 10 mph.

  • Monday

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

  • Monday Night

    Partly cloudy. Low of 50F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 61F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 50F. Breezy. Winds from the SE at 15 to 20 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: St. Peters, St. Peters, MO

Updated: 3:28 PM CDT

Temperature: 74.8 °F Dew Point: 56 °F Humidity: 51% Wind: West at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

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

Updated: 3:24 PM CDT

Temperature: 80.2 °F Dew Point: 54 °F Humidity: 40% Wind: Calm Pressure: 30.00 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 3:28 PM CDT

Temperature: 76.3 °F Dew Point: 57 °F Humidity: 51% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 3:27 PM CDT

Temperature: 82.4 °F Dew Point: 56 °F Humidity: 40% Wind: ESE at 4.7 mph Pressure: 29.91 in Hourly Precipitation: - Heat Index: 82 °F Graphs

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

Updated: 3:28 PM CDT

Temperature: 74.7 °F Dew Point: 51 °F Humidity: 43% Wind: West at 5.4 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

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

Updated: 3:28 PM CDT

Temperature: 73.6 °F Dew Point: 56 °F Humidity: 54% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 3:28 PM CDT

Temperature: 71.0 °F Dew Point: 54 °F Humidity: 53% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 3:25 PM CDT

Temperature: 78.9 °F Dew Point: 54 °F Humidity: 42% Wind: SSE at 4.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 3:28 PM CDT

Temperature: 77.2 °F Dew Point: 49 °F Humidity: 37% Wind: WSW at 1.3 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 3:24 PM CDT

Temperature: 73.8 °F Dew Point: 53 °F Humidity: 48% Wind: WSW at 4.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

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

Updated: 3:28 PM CDT

Temperature: 74.0 °F Dew Point: 51 °F Humidity: 45% Wind: SW at 6.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 1:03 PM CDT

Temperature: 71.6 °F Dew Point: 56 °F Humidity: 58% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 3:14 PM CDT

Temperature: 71.2 °F Dew Point: 40 °F Humidity: 32% Wind: SW at 2.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 3:28 PM CDT

Temperature: 71.5 °F Dew Point: 50 °F Humidity: 47% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Harvester, St. Charles, MO

Updated: 3:20 PM CDT

Temperature: 74.9 °F Dew Point: 54 °F Humidity: 49% Wind: WSW at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Danielle Downs, St. Peters, MO

Updated: 3:28 PM CDT

Temperature: 84.4 °F Dew Point: 52 °F Humidity: 36% Wind: South at 1.6 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 3:28 PM CDT

Temperature: 74.7 °F Dew Point: 52 °F Humidity: 46% Wind: SW at 1.6 mph Pressure: 29.61 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 3:25 PM CDT

Temperature: 73.5 °F Dew Point: 55 °F Humidity: 53% Wind: SE at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 3:28 PM CDT

Temperature: 72.8 °F Dew Point: 55 °F Humidity: 53% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Talbridge, St. Charles, MO

Updated: 3:28 PM CDT

Temperature: 73.8 °F Dew Point: 51 °F Humidity: 45% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 3:22 PM CDT

Temperature: 74.3 °F Dew Point: 52 °F Humidity: 46% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 3:20 PM CDT

Temperature: 73.0 °F Dew Point: 53 °F Humidity: 49% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 3:25 PM CDT

Temperature: 73.8 °F Dew Point: 55 °F Humidity: 52% Wind: SW at 1.1 mph Pressure: 29.70 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Lindenwood, St. Charles, MO

Updated: 3:28 PM CDT

Temperature: 68.7 °F Dew Point: 53 °F Humidity: 57% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ridgepointe-Meadowbrook, Lake Saint Louis, MO

Updated: 3:28 PM CDT

Temperature: 72.9 °F Dew Point: 55 °F Humidity: 54% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 3:28 PM CDT

Temperature: 77.0 °F Dew Point: 52 °F Humidity: 41% Wind: Calm Pressure: 30.74 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 3:25 PM CDT

Temperature: 72.9 °F Dew Point: 50 °F Humidity: 45% Wind: SSW at 2.2 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 77 °F Graphs

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

Updated: 3:28 PM CDT

Temperature: 74.4 °F Dew Point: 56 °F Humidity: 53% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 3:26 PM CDT

Temperature: 74.7 °F Dew Point: 55 °F Humidity: 51% Wind: South at 2.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Lake Saint Louis, Lake Saint Louis, MO

Updated: 3:28 PM CDT

Temperature: 74.4 °F Dew Point: 54 °F Humidity: 50% Wind: SSW at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Crimson Oaks, Lake Saint Louis, MO

Updated: 3:24 PM CDT

Temperature: 72.7 °F Dew Point: 53 °F Humidity: 49% Wind: North at - Pressure: 29.97 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 3:28 PM CDT

Temperature: 73.5 °F Dew Point: 54 °F Humidity: 50% Wind: South at 2.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Avondale, Wentzville, MO

Updated: 3:23 PM CDT

Temperature: 73.2 °F Dew Point: 55 °F Humidity: 53% Wind: SSW at 3.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 77 °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 
1205 PM CDT Fri Oct 24 2014 


Short term: (through late this afternoon) 
issued at 335 am CDT Fri Oct 24 2014 


Weak shortwave will round periphery of mid/upper ridge with main impact 
being an increase in high-level cloudiness for portions of the area. 
At the sfc...a weak frontal boundary will approach northwestern sections 
of the County warning forecast area by 0000 UTC Saturday. At this time...no wet weather is 
expected to accompany this frontal boundary. Temperatures will continue 
on the upswing with highs back above average ranging from the upper 
60s over south-central Illinois to low/mid 70s for portions of central... 
east-central...and southeastern Missouri. 




Gosselin 


Long term: (tonight through thursday) 
issued at 335 am CDT Fri Oct 24 2014 




(tonight - monday) 


Aforementioned frontal boundary is progged to move through the rest of 
the County Warning Area overnight tonight with little fanfare other than a subtle wind 
shift from the southwest to the west/northwest. With light winds and 
clearing skies behind boundary and associated shortwave trough...did 
lean a bit toward cooler nwp guidance with lows mainly in the 50s across 
the area. 


The Saturday through Monday period will be characterized by well-above 
normal temperatures as upper-level ridging builds overhead and 850-hpa 
thermal ridge advects toward the mid-Mississippi Valley. Have upped highs 
quite a bit from previous forecast into the 70s/80s areawide or some 
10-20 degrees above normal. Lows will also follow suit and get progressively 
warmer. All in all...dry and unseasonably warm will be the rule with 
record or near-record high and/or high low temperatures possible. 




(Monday night - thursday) 


A cold front will move through the area on Monday night with medium-ranged 
guidance in very good agreement with fropa timing and associated rain 
chances. This front should bring a fairly good chance of showers with 
thunder also possible. Instability looks almost non-existent however due 
to low-leevl ridging preventing Gulf moisture from streaming northward. 
However...did leave mention of thunder in the grids as believe there 
should be at least some meager instability...if nothing else due to the 
very anomalous sfc temps. This front will also finally move out the 
unseasonably warm temperatures and usher in daytime highs and nighttime 
lows much closer to seasonal norms for late October. Highs are expected 
to be back in the 60s with lows in the 40s Tuesday through Thursday along 
with dry weather conditions. 




Gosselin 


&& 


Aviation: (for the 18z tafs through 18z Saturday afternoon) 
issued at 1203 PM CDT Fri Oct 24 2014 


Stratus and fog were slow to clear this morning, a true sign of 
the changing of the season and lower sun angle. Should see most if 
not all locations become VFR this afternoon before a renewed 
threat of fog or stratus development tonight ahead of a weak trof. 


Specifics for kstl: 


VFR conditions expected to continue with a light south wind 
becoming west/northwest tomorrow morning. There is a chance of 
some MVFR fog developing late tonight and early tomorrow morning. 


Cvking 


&& 


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


$$ 


Weather forecast office lsx 



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