Saint Peters, Missouri Weather Conditions

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Current Conditions

  • 67°
  • Clear
  • Wind: ESE 5 mph
  • Humidity: 76%
  • Visibility: 10.0 miles
  • Dew Point: 59°
  • Pressure: 29.90 in. 0

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Next 12 Hours

10  am
1  pm
4  pm
7  pm
10  pm
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
72°
82°
82°
72°
68°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 64 °
  • Chance of a Thunderstorm
  • Thursday
  • Thunderstorm
  • High: 81 °
  • Low: 55 °
  • T-Storms
  • Friday
  • Partly Cloudy
  • High: 66 °
  • Low: 41 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 59 °
  • Low: 41 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 72 °
  • Low: 52 °
  • Partly Cloudy

Forecast for Saint Peters, Missouri

Updated: 10:00 AM CDT on October 01, 2014

  • Wednesday

    Partly cloudy. High of 84F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Wednesday Night

    Mostly cloudy with a chance of a thunderstorm and a chance of rain, then thunderstorms after midnight. Low of 64F. Winds from the SSE at 5 to 10 mph. Chance of rain 60%.

  • Thursday

    Overcast with a chance of a thunderstorm and a chance of rain, then thunderstorms and rain showers in the afternoon. High of 81F. Winds from the South at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Thursday Night

    Overcast with thunderstorms and rain showers, then a chance of rain after midnight. Low of 55F. Winds from the SW at 5 to 10 mph. Chance of rain 90% with rainfall amounts near 1.0 in. possible.

  • Friday

    Partly cloudy. High of 66F. Windy. Winds from the WNW at 15 to 25 mph with gusts to 35 mph.

  • Friday Night

    Partly cloudy in the evening, then clear. Low of 41F. Winds from the West at 10 to 15 mph.

  • Saturday

    Partly cloudy. High of 59F. Breezy. Winds from the WNW at 15 to 20 mph.

  • Saturday Night

    Partly cloudy. Low of 41F. Winds from the WSW at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 72F. Winds from the SW at 5 to 15 mph.

  • Sunday Night

    Clear. Low of 52F. Winds from the WSW at 5 to 10 mph.

  • Monday

    Mostly cloudy with a chance of rain. High of 72F. Winds from the West at 10 to 15 mph. Chance of rain 20%.

  • Monday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 45F. Winds from the WSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.

  • Tuesday

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

  • Tuesday Night

    Partly cloudy. Low of 54F. Winds from the WSW at 5 to 10 mph shifting to the North after midnight.

  • Wednesday

    Partly cloudy. High of 81F. Winds from the ENE at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 57F. Winds from the South at 5 to 10 mph. Chance of rain 40%.

  • Thursday

    Overcast with a chance of a thunderstorm. Fog early. High of 79F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.

  • Thursday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 55F. Winds less than 5 mph. Chance of rain 50%.

  • Friday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 68F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy. Low of 48F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 61F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 48F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: St. Peters, St. Peters, MO

Updated: 9:13 AM CDT

Temperature: 68.0 °F Dew Point: 62 °F Humidity: 80% Wind: SSW at 2.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 9:13 AM CDT

Temperature: 67.0 °F Dew Point: 61 °F Humidity: 81% Wind: SSW at 1.1 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 9:13 AM CDT

Temperature: 70.2 °F Dew Point: 62 °F Humidity: 76% Wind: SSW at 1.7 mph Pressure: 29.79 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: West Drive, St. Peters, MO

Updated: 9:13 AM CDT

Temperature: 68.0 °F Dew Point: 61 °F Humidity: 77% Wind: South at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Foxborough Estates, St. Charles, MO

Updated: 9:13 AM CDT

Temperature: 69.0 °F Dew Point: 61 °F Humidity: 76% Wind: East at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: COTTLEVILLE/HARVESTER, St. Charles, MO

Updated: 9:13 AM CDT

Temperature: 68.7 °F Dew Point: 59 °F Humidity: 72% Wind: South at 2.5 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 9:09 AM CDT

Temperature: 69.3 °F Dew Point: 61 °F Humidity: 75% Wind: South at 4.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 9:13 AM CDT

Temperature: 67.0 °F Dew Point: 61 °F Humidity: 80% Wind: SE at 3.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 9:13 AM CDT

Temperature: 67.9 °F Dew Point: 63 °F Humidity: 84% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Wilshire Valley, St. Charles, MO

Updated: 9:00 AM CDT

Temperature: 68.2 °F Dew Point: 55 °F Humidity: 62% Wind: SSE at 3.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Saint Charles Hills, Saint Charles, MO

Updated: 9:13 AM CDT

Temperature: 68.4 °F Dew Point: 61 °F Humidity: 77% Wind: ESE at 1.2 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Harvester, St. Charles, MO

Updated: 9:04 AM CDT

Temperature: 69.2 °F Dew Point: 63 °F Humidity: 80% Wind: ESE at 1.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Danielle Downs, St. Peters, MO

Updated: 9:13 AM CDT

Temperature: 71.2 °F Dew Point: 64 °F Humidity: 79% Wind: SW at 3.1 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 9:13 AM CDT

Temperature: 71.6 °F Dew Point: 64 °F Humidity: 76% Wind: Calm Pressure: 29.49 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 9:10 AM CDT

Temperature: 67.2 °F Dew Point: 62 °F Humidity: 83% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 9:13 AM CDT

Temperature: 67.4 °F Dew Point: 63 °F Humidity: 86% Wind: East at 3.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Talbridge, St. Charles, MO

Updated: 9:13 AM CDT

Temperature: 68.5 °F Dew Point: 61 °F Humidity: 77% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Austin Ridge, Saint Charles, MO

Updated: 9:08 AM CDT

Temperature: 67.5 °F Dew Point: 61 °F Humidity: 79% Wind: ESE at 4.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 9:13 AM CDT

Temperature: 69.3 °F Dew Point: 62 °F Humidity: 78% Wind: ENE at 2.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 9:13 AM CDT

Temperature: 67.9 °F Dew Point: 60 °F Humidity: 77% Wind: SE at 2.5 mph Pressure: 29.59 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Lindenwood, St. Charles, MO

Updated: 9:12 AM CDT

Temperature: 68.4 °F Dew Point: 63 °F Humidity: 82% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ridgepointe-Meadowbrook, Lake Saint Louis, MO

Updated: 9:13 AM CDT

Temperature: 69.8 °F Dew Point: 61 °F Humidity: 74% Wind: South at 3.1 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Historic Saint Charles, Saint Charles, MO

Updated: 9:10 AM CDT

Temperature: 70.2 °F Dew Point: 62 °F Humidity: 76% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 9:13 AM CDT

Temperature: 63.9 °F Dew Point: 62 °F Humidity: 95% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 9:13 AM CDT

Temperature: 66.2 °F Dew Point: 63 °F Humidity: 90% Wind: SSE at 1.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Creve Coeur Park - Forest ReLeaf, St. Louis, MO

Updated: 9:10 AM CDT

Temperature: 71.6 °F Dew Point: 64 °F Humidity: 76% Wind: Calm Pressure: 29.41 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 9:12 AM CDT

Temperature: 69.9 °F Dew Point: 63 °F Humidity: 78% Wind: SE at 3.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Swaying Oaks, Wentzville, MO

Updated: 9:13 AM CDT

Temperature: 73.0 °F Dew Point: 53 °F Humidity: 50% Wind: SSE at 1.6 mph Pressure: 29.29 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Creve Coeur, St. Louis, MO

Updated: 9:13 AM CDT

Temperature: 70.2 °F Dew Point: 61 °F Humidity: 72% Wind: South at 1.3 mph Pressure: 29.50 in Hourly Precipitation: 0.00 in Heat Index: 73 °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 
652 am CDT Wed Oct 1 2014 


Short term: (through late this afternoon) 
issued at 226 am CDT Wed Oct 1 2014 


As expected the convection stayed west of the County Warning Area overnight with 
parts of northeast Kansas, eastern Nebraska, western Iowa, and 
northern Missouri picking up some hefty precipitation totals from 
training convection. Model guidance depicts a slow eastward movement 
to the convection this morning, with additional storms likely firing 
during the afternoon across northwest or central Missouri. The 
front that settled to our south yesterday evening will lift north as 
a warm front today, allowing temperatures to rise well above average 
again. 


Cvking 


Long term: (tonight through tuesday) 
issued at 226 am CDT Wed Oct 1 2014 


Thunderstorms should increase in coverage and intensity tonight 
as next upper level disturbance rounding the base of the large 
scale trof at the moment lifts northeast across the Southern 
Plains into the Midwest. Combine this synoptic lift with a 
strengthening low level jet and the result should be some hefty 
convection across northern Missouri into west central Illinois. 
Training convection could lead to some rainfall totals in excess 
of 2 inches and the threat of flash flooding will need to be 
monitored. Will not issue a watch due to dry antecedent 
conditions. Slight risk of severe thunderstorms from Storm Prediction Center reaches 
into central and northeast Missouri. Could certainly be some 
reports of large hail and damaging winds with the strongest cells. 


Complex of thunderstorms will be weakening and exiting into weather forecast office ilx 
area Thursday morning with attention turning to the cold front 
moving into Missouri from the west. Thunderstorms again expected to 
develop, maybe in waves on Thursday, along and ahead of the 
front. These storms will be capable of producing the full gamut 
of severe weather, especially given the favorable shear profile. 
The exact timing, location, and severity of convection will be 
modulated by mesoscale features such as outflow boundaries. 


Expect most of the convection to be exiting the area by 06z Friday 
with only a few showers lingering after midnight as the cold front 
sweeps across the County Warning Area. 


Friday looks windy and much colder as upper level low moving 
southeast across the upper Midwest deepens the long wave trof as it 
slides east of the County Warning Area. Colder than normal conditions expected on 
Saturday with temperatures only rising into the 50s. 


Temperatures to slowly warm the remainder of the extended but there 
is some indications that this long wave trof will stay parked to our 
east, keeping northwest flow alive and well overhead. A disturbance 
moving southeast within that flow could bring few sprinkles or rain 
showers to the County Warning Area on Sunday/Sunday night. 


Cvking 


&& 


Aviation: (for the 12z tafs through 12z Thursday morning) 
issued at 629 am CDT Wed Oct 1 2014 


Focus will be precip chances thru the period with VFR conditions 
expected outside of thunderstorms and rain. Ongoing convection over wrn MO is 
expected to move newd, remaining west of cou/uin. Some question about 
thunderstorms and rain potential this afternoon with a short wave currently over OK. 
However, with greater chances overnight, have focused mention of 
thunderstorms in the vicinity and tempo groups with that timing. Cou/uin could see multiple 
rounds of precip thru the period. 


Specifics for kstl: no much change from the prev taf. Winds are 
expected to be light and sely today. VFR conditions expected 
outside of any thunderstorms and rain. Still some uncertainty regarding timing of 
precip, but best chances are around and after midnight tonight. 
Have kept only mention of thunderstorms in the vicinity due to uncertainty in coverage. 




&& 


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


$$ 


Weather forecast office lsx 












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