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

  • 59°
  • Clear
  • Wind: Calm
  • Humidity: 75%
  • Visibility: 10.0 miles
  • Dew Point: 51°
  • Pressure: 29.98 in. -

Select a Section

Click a section below for more information.

Next 12 Hours

10  pm
1  am
4  am
7  am
10  am
Clear
Clear
Mostly Cloudy
Mostly Cloudy
Fog
Fog
Fog
Fog
Clear
Clear
61°
61°
57°
54°
68°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Partly Cloudy
  • High: 79 °
  • Low: 50 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 81 °
  • Low: 57 °
  • Partly Cloudy
  • Monday
  • Chance of a Thunderstorm
  • High: 81 °
  • Low: 59 °
  • Chance of a Thunderstorm
  • Tuesday
  • Chance of a Thunderstorm
  • High: 64 °
  • Low: 45 °
  • Chance of T-Storms
  • Wednesday
  • Partly Cloudy
  • High: 63 °
  • Low: 48 °
  • Partly Cloudy

Forecast for Saint Peters, Missouri

Updated: 10:00 PM CDT on October 24, 2014

  • Friday

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

  • Friday Night

    Partly cloudy. Fog overnight. Low of 54F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. Fog early. High of 79F. Winds from the WNW at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 50F. Winds less than 5 mph.

  • Sunday

    Clear in the morning, then partly cloudy. High of 81F. Winds from the SE at 5 to 10 mph.

  • Sunday Night

    Partly cloudy. Low of 57F. Winds from the South at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 81F. Winds from the SSW at 10 to 15 mph. Chance of rain 20%.

  • Monday Night

    Overcast with a chance of a thunderstorm and a chance of rain, then 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 45F. Winds from the NW at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 63F. 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 64F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Clear. Low of 41F. Winds from the NNE at 5 to 10 mph shifting to the NNW after midnight.

  • Friday

    Clear. High of 54F. Winds from the NNW at 10 to 15 mph.

  • Friday Night

    Clear. Low of 34F. Winds from the North at 5 to 10 mph.

  • Saturday

    Clear. High of 57F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 37F. Winds less than 5 mph.

  • Sunday

    Clear. High of 57F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 36F. Winds less than 5 mph.

  • Monday

    Clear. High of 59F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Low of 37F. Winds less than 5 mph.

  • Tuesday

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

  • Tuesday Night

    Clear. Fog overnight. Low of 37F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Wilshire Valley, St. Charles, MO

Updated: 9:29 PM CDT

Temperature: 65.8 °F Dew Point: 42 °F Humidity: 41% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Graphs

Location: Danielle Downs, St. Peters, MO

Updated: 9:43 PM CDT

Temperature: 62.8 °F Dew Point: 54 °F Humidity: 73% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Talbridge, St. Charles, MO

Updated: 9:44 PM CDT

Temperature: 63.0 °F Dew Point: 53 °F Humidity: 69% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Harvester, St. Charles, MO

Updated: 9:35 PM CDT

Temperature: 63.8 °F Dew Point: 53 °F Humidity: 69% Wind: SE at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

Location: West Drive, St. Peters, MO

Updated: 9:44 PM CDT

Temperature: 60.8 °F Dew Point: 53 °F Humidity: 73% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 9:41 PM CDT

Temperature: 59.2 °F Dew Point: 52 °F Humidity: 77% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:43 PM CDT

Temperature: 65.5 °F Dew Point: 53 °F Humidity: 64% Wind: SW at 2.7 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

Location: Lindenwood, St. Charles, MO

Updated: 9:43 PM CDT

Temperature: 60.0 °F Dew Point: 53 °F Humidity: 78% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 9:44 PM CDT

Temperature: 61.8 °F Dew Point: 50 °F Humidity: 65% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 9:44 PM CDT

Temperature: 64.8 °F Dew Point: 56 °F Humidity: 72% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: St. Peters, St. Peters, MO

Updated: 9:44 PM CDT

Temperature: 65.1 °F Dew Point: 54 °F Humidity: 68% Wind: WSW at 2.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 9:44 PM CDT

Temperature: 62.1 °F Dew Point: 53 °F Humidity: 72% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Fox Hill, Saint Charles, MO

Updated: 9:30 PM CDT

Temperature: 63.1 °F Dew Point: 50 °F Humidity: 62% Wind: Calm Pressure: 29.94 in Hourly Precipitation: - Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 9:44 PM CDT

Temperature: 59.7 °F Dew Point: 48 °F Humidity: 66% Wind: Calm Pressure: 29.56 in Hourly Precipitation: 0.00 in Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 9:38 PM CDT

Temperature: 62.4 °F Dew Point: 53 °F Humidity: 72% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 9:33 PM CDT

Temperature: 62.1 °F Dew Point: 54 °F Humidity: 75% Wind: SE at 3.2 mph Pressure: 29.88 in Hourly Precipitation: - Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 9:44 PM CDT

Temperature: 64.5 °F Dew Point: 52 °F Humidity: 63% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

Location: Ross Ave, St. Louis, MO

Updated: 9:44 PM CDT

Temperature: 62.2 °F Dew Point: 51 °F Humidity: 66% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:30 PM CDT

Temperature: 59.0 °F Dew Point: 52 °F Humidity: 78% Wind: Calm Pressure: 29.95 in Hourly Precipitation: - Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 9:43 PM CDT

Temperature: 61.9 °F Dew Point: 53 °F Humidity: 73% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Maryland Heights, St Louis, MO

Updated: 9:37 PM CDT

Temperature: 64.9 °F Dew Point: 51 °F Humidity: 62% Wind: Calm Pressure: 29.32 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:33 PM CDT

Temperature: 64.8 °F Dew Point: 51 °F Humidity: 61% Wind: SSW at 4.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 9:44 PM CDT

Temperature: 62.6 °F Dew Point: 51 °F Humidity: 65% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 9:44 PM CDT

Temperature: 63.4 °F Dew Point: 52 °F Humidity: 67% Wind: WSW at 2.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:44 PM CDT

Temperature: 64.2 °F Dew Point: 54 °F Humidity: 69% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 9:40 PM CDT

Temperature: 59.7 °F Dew Point: 54 °F Humidity: 82% Wind: SE at 3.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:40 PM CDT

Temperature: 61.9 °F Dew Point: 52 °F Humidity: 70% Wind: SW at 1.7 mph Pressure: 29.90 in Hourly Precipitation: - Graphs

Location: Riverwood Place, Florissant, MO

Updated: 9:44 PM CDT

Temperature: 63.2 °F Dew Point: 53 °F Humidity: 70% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 9:40 PM CDT

Temperature: 65.3 °F Dew Point: 55 °F Humidity: 69% Wind: SW at 2.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:44 PM CDT

Temperature: 64.1 °F Dew Point: 54 °F Humidity: 69% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:44 PM CDT

Temperature: 63.0 °F Dew Point: 55 °F Humidity: 74% Wind: SW at 3.0 mph Pressure: 30.90 in Hourly Precipitation: 0.00 in Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 9:43 PM CDT

Temperature: 64.5 °F Dew Point: 55 °F Humidity: 72% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 9:40 PM CDT

Temperature: 62.0 °F Dew Point: 56 °F Humidity: 80% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 9:42 PM CDT

Temperature: 65.1 °F Dew Point: 58 °F Humidity: 77% Wind: Calm Pressure: 29.96 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 
550 PM CDT Fri Oct 24 2014 


Short term: (tonight through sunday) 
issued at 332 PM CDT Fri Oct 24 2014 


The last vestiges of this morning's low clouds and fog is finally 
dissipating. However, clearing sky and light wind combined with 
relatively high dewpoints in the mid and upper 50s tonight will 
likely produce more fog. A weak trof of low pressure now moving 
through eastern Nebraska will also drop into the area providing a 
little lift and convergence but not much of an increase in wind. 
Unsure how low to go at this time, but at least patchy fog looks 
likely with more widespread fog in northeast MO/west central Illinois. 


Fog will likely linger into the daytime hours of Saturday morning. 
A lot of uncertainty as to how long...but at least through 14-15z 
seems likely. The trof is expected to come to a halt Saturday 
afternoon/evening near the MO/Arkansas border then begin lifting back to 
the north as a warm front as warm advection begins ahead of the next 
system. The warm front continues lifting north Sunday and decent 
mixing should give US temperatures well above normal. MOS 
temperatures through Sunday look pretty reasonable so have followed 
them closely. 


Carney 


Long term: (sunday night through next friday) 
issued at 344 PM CDT Fri Oct 24 2014 


Sunday night into Monday the next strong shortwave moves from The 
Rockies into the Great Plains. Strong warm advection should keep 
temperatures pretty mild...more Summer-like in fact...into Monday 
afternoon. As the surface cold front associated with the shortwave 
approaches the area Monday night, expect scattered showers and 
possibly a few thunderstorms to affect the area. Kept pops in the 
high chance/low likely range as the front moves through the area 
late Monday night into Tuesday. Rain chances should be more or less 
done by 00z Wednesday. Cooler conditions for the rest of the week 
as the upper pattern amplifies with a deep trof over eastern North 
America and a strong ridge over The Rockies. A shortwave is forecast 
to ripple by Thursday which could produce another round of light 
rain, tho differences in medium range guidance indicate slight 
chance pops are the best way to handle it at this time. Next Friday 
looks cool and dry at this time as a strong Canadian high pressure 
system slides down into the Mississippi Valley. 


Carney 


&& 


Aviation: (for the 00z tafs through 00z Saturday evening) 
issued at 522 PM CDT Fri Oct 24 2014 


A weak cool front will move southeastward through the area late 
tonight. Fog is expected to develop late tonight ahead of this 
front, and possibly also patchy stratus clouds as well, due to light 
surface winds and relatively high surface dewpoints. This fog will 
dissipate by late Saturday morning. A S-swly surface wind will 
veer around to a nwly direction late tonight/early Saturday 
morning after fropa. 


Specifics for kstl: just high level clouds tonight and maybe 
scattered low level clouds as well. Light fog can be expected late 
tonight/early Saturday morning. Sly surface wind will veer around 
to a nwly direction early Saturday morning after fropa. The 
surface wind will become N-nely Saturday evening, albeit light as 
a surface ridge moves through the region. 


Gks 


&& 


Preliminary point temperatures/pops: 
Saint Louis 59 78 55 79 / 0 0 0 5 
Quincy 54 75 50 77 / 0 0 0 10 
Columbia 56 79 55 83 / 0 0 0 5 
Jefferson City 55 79 53 83 / 0 0 0 5 
Salem 54 75 49 76 / 0 0 0 5 
Farmington 55 77 51 80 / 0 0 0 0 


&& 


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.