Saint Louis, Missouri Weather Conditions

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Current Conditions

  • 68°
  • Overcast
  • Wind: NW 7 mph
  • Humidity: 90%
  • Visibility: 10.0 miles
  • Dew Point: 65°
  • Pressure: 29.87 in. +

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Next 12 Hours

7  am
10  am
1  pm
4  pm
7  pm
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
72°
79°
86°
82°
73°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Thunderstorm
  • High: 86 °
  • Low: 61 °
  • T-Storms
  • Friday
  • Chance of Rain
  • High: 64 °
  • Low: 41 °
  • Chance of Rain
  • Saturday
  • Partly Cloudy
  • High: 59 °
  • Low: 46 °
  • Partly Cloudy
  • Sunday
  • Mostly Cloudy
  • High: 72 °
  • Low: 54 °
  • Mostly Cloudy
  • Monday
  • Chance of Rain
  • High: 72 °
  • Low: 54 °
  • Chance of Rain

Forecast for Saint Louis, Missouri

Updated: 4:00 AM CDT on October 02, 2014

  • Thursday

    Overcast with thunderstorms and rain showers. High of 86F. Winds from the South at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.7 in. possible.

  • Thursday Night

    Overcast with thunderstorms and rain showers, then a chance of a thunderstorm and a chance of rain after midnight. Low of 61F. Winds from the South at 5 to 10 mph shifting to the WSW after midnight. Chance of rain 90% with rainfall amounts near 1.1 in. possible.

  • Friday

    Overcast with a chance of rain in the afternoon. High of 64F. Windy. Winds from the WNW at 15 to 25 mph with gusts to 35 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy. Low of 41F. Breezy. Winds from the West at 10 to 20 mph.

  • Saturday

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

  • Saturday Night

    Partly cloudy in the evening, then clear. Low of 46F. Winds from the SW at 5 to 10 mph.

  • Sunday

    Partly cloudy in the morning, then overcast. High of 72F. Winds from the SSW at 10 to 15 mph shifting to the West in the afternoon.

  • Sunday Night

    Overcast in the evening, then clear. Low of 54F. Winds from the West at 5 to 10 mph.

  • Monday

    Mostly cloudy with a chance of rain in the afternoon. High of 72F. Winds from the SW at 5 to 15 mph. Chance of rain 20%.

  • Monday Night

    Partly cloudy with a chance of rain. Low of 54F. Winds from the SW at 5 to 15 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.

  • Tuesday

    Partly cloudy. High of 82F. Winds from the West at 5 to 15 mph.

  • Tuesday Night

    Clear. Low of 57F. Winds from the WSW at 5 to 10 mph.

  • Wednesday

    Mostly cloudy. High of 86F. Winds from the SW at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 64F. Winds from the SSW at 5 to 10 mph. Chance of rain 50%.

  • Thursday

    Mostly cloudy. High of 82F. Winds from the South at 10 to 15 mph.

  • Thursday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 57F. Winds from the ESE at 5 to 15 mph. Chance of rain 30%.

  • Friday

    Overcast with a chance of a thunderstorm. Fog early. High of 70F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 50F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 63F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday Night

    Mostly cloudy. Fog overnight. Low of 46F. Winds less than 5 mph.

  • Sunday

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

  • Sunday Night

    Clear. Fog overnight. Low of 46F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Crestwood, Crestwood, MO

Updated: 7:12 AM CDT

Temperature: 66.6 °F Dew Point: 64 °F Humidity: 91% Wind: Calm Pressure: 29.59 in Hourly Precipitation: - Heat Index: - Graphs

Location: Sunset Hills, St Louis, MO

Updated: 7:16 AM CDT

Temperature: 66.8 °F Dew Point: 66 °F Humidity: 97% Wind: Calm Pressure: 29.85 in Hourly Precipitation: - Heat Index: - Graphs

Location: East Madison, Kirkwood, MO, Kirkwood, MO

Updated: 7:25 AM CDT

Temperature: 66.4 °F Dew Point: 66 °F Humidity: 97% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Crest Ave. Kirkwood MO, St. Louis, MO

Updated: 7:18 AM CDT

Temperature: 67.3 °F Dew Point: 65 °F Humidity: 93% Wind: Calm Pressure: 29.87 in Hourly Precipitation: - Heat Index: - Graphs

Location: Essex and Geyer, St. Louis, MO

Updated: 7:24 AM CDT

Temperature: 66.4 °F Dew Point: 65 °F Humidity: 95% Wind: West at 2.7 mph Pressure: 29.71 in Hourly Precipitation: - Heat Index: - Graphs

Location: Webster Groves, Webster Groves, MO

Updated: 7:25 AM CDT

Temperature: 66.7 °F Dew Point: 67 °F Humidity: 100% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: South County, Affton, MO

Updated: 7:25 AM CDT

Temperature: 66.5 °F Dew Point: 65 °F Humidity: 95% Wind: NNW at 3.0 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Big Bend and I-270, Kirkwood, MO

Updated: 7:24 AM CDT

Temperature: 66.6 °F Dew Point: 48 °F Humidity: 52% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: South St. Louis County, St. Louis, MO

Updated: 7:25 AM CDT

Temperature: 70.3 °F Dew Point: - Humidity: 81% Wind: SSE at 1.0 mph Pressure: 29.22 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 7:15 AM CDT

Temperature: 66.2 °F Dew Point: 66 °F Humidity: 99% Wind: Calm Pressure: 29.85 in Hourly Precipitation: - Heat Index: - Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 7:25 AM CDT

Temperature: 66.1 °F Dew Point: 65 °F Humidity: 97% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Parkridge, Brentwood, MO

Updated: 7:24 AM CDT

Temperature: 67.6 °F Dew Point: - Humidity: - Wind: NW at 1.6 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Jefferson Barracks, Mehlville, MO

Updated: 7:25 AM CDT

Temperature: 66.2 °F Dew Point: 66 °F Humidity: 98% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Manchester, MO, Manchester, MO

Updated: 7:08 AM CDT

Temperature: 66.1 °F Dew Point: 66 °F Humidity: 98% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: BROADWAY (South), St. Louis, MO

Updated: 6:50 AM CDT

Temperature: 68.4 °F Dew Point: - Humidity: 84% Wind: North at - Pressure: 29.29 in Hourly Precipitation: - Heat Index: - Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 7:25 AM CDT

Temperature: 66.5 °F Dew Point: 65 °F Humidity: 95% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Twin Oaks, Twin Oaks, MO

Updated: 7:20 AM CDT

Temperature: 66.2 °F Dew Point: 66 °F Humidity: 99% Wind: Calm Pressure: 29.77 in Hourly Precipitation: - Heat Index: - Graphs

Location: ARNOLD, Arnold, MO

Updated: 6:50 AM CDT

Temperature: 67.6 °F Dew Point: - Humidity: 85% Wind: North at - Pressure: 29.18 in Hourly Precipitation: - Heat Index: - Graphs

Location: Ladue, St. Louis, MO

Updated: 6:50 AM CDT

Temperature: 66.9 °F Dew Point: - Humidity: 88% Wind: North at - Pressure: 29.23 in Hourly Precipitation: - Heat Index: - Graphs

Location: Arnold, Arnold, MO

Updated: 7:19 AM CDT

Temperature: 66.0 °F Dew Point: 65 °F Humidity: 96% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: San Luis Trails, Fenton, MO

Updated: 7:25 AM CDT

Temperature: 66.3 °F Dew Point: 66 °F Humidity: 100% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 7:25 AM CDT

Temperature: 66.2 °F Dew Point: 65 °F Humidity: 97% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Arnold, MO

Updated: 7:16 AM CDT

Temperature: 66.0 °F Dew Point: 65 °F Humidity: 96% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.01 in Heat Index: - Graphs

Location: Forest Park, St. Louis, MO

Updated: 6:50 AM CDT

Temperature: 66.7 °F Dew Point: - Humidity: 93% Wind: North at - Pressure: 29.31 in Hourly Precipitation: 0.06 in Heat Index: - Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 7:25 AM CDT

Temperature: 66.7 °F Dew Point: 65 °F Humidity: 94% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ladue Meadows, Creve Coeur, MO

Updated: 7:24 AM CDT

Temperature: 67.1 °F Dew Point: 64 °F Humidity: 90% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Wynfield Terrace, St. Louis, MO

Updated: 7:25 AM CDT

Temperature: 66.2 °F Dew Point: 64 °F Humidity: 94% Wind: NE at 2.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Christopher Winds, Oakville, MO

Updated: 7:25 AM CDT

Temperature: 66.3 °F Dew Point: 65 °F Humidity: 96% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 7:13 AM CDT

Temperature: 66.5 °F Dew Point: 63 °F Humidity: 87% Wind: West at 3.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Shaw/Tower Grove, St. Louis, MO

Updated: 7:22 AM CDT

Temperature: 66.4 °F Dew Point: 63 °F Humidity: 90% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Arbor Valley, Ballwin, MO

Updated: 7:24 AM CDT

Temperature: 66.2 °F Dew Point: 65 °F Humidity: 96% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 7:25 AM CDT

Temperature: 67.0 °F Dew Point: 64 °F Humidity: 89% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 7:25 AM CDT

Temperature: 67.0 °F Dew Point: 66 °F Humidity: 97% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest I-255 / IL-3 @ Columbia IL US ILDOT, Columbia, IL

Updated: 6:55 AM CDT

Temperature: 67 °F Dew Point: 65 °F Humidity: 92% Wind: North at 2 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 7:25 AM CDT

Temperature: 66.7 °F Dew Point: 66 °F Humidity: 97% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ross Ave, St. Louis, MO

Updated: 7:25 AM CDT

Temperature: 66.4 °F Dew Point: 63 °F Humidity: 89% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.03 in Heat Index: - Graphs

Location: Westglen Village, Ballwin, MO

Updated: 7:25 AM CDT

Temperature: 65.9 °F Dew Point: 65 °F Humidity: 96% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: High Ridge Fire District House #1, High Ridge, MO

Updated: 7:14 AM CDT

Temperature: 68.3 °F Dew Point: 67 °F Humidity: 94% Wind: NE at 6.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 7:25 AM CDT

Temperature: 65.4 °F Dew Point: 65 °F Humidity: 98% Wind: ENE at 1.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: - 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 
639 am CDT Thu Oct 2 2014 


Short term: (through tonight) 
issued at 330 am CDT Thu Oct 2 2014 


Focus will be precip thru the period. Much of the region is 
expected to receive multiple rounds of thunderstorms and rain today and into 
tonight. Currently no changes to the flash Flood Advisory are anticipated. 
However, if any changes where made, it would likely be expanded 
ewd and into tonight. 


Mdls are in fairly good agreement regarding synoptic features thru 
the period. Yet another line of thunderstorms and rain currently over cntl MO shud 
reach the meteorological impact statement rvr around 12z. This line is expected to gradually 
weaken as it continues to shift ewd this morning. The next round 
is currently over OK and expected to impact wrn/nrn portions of 
the County Warning Area late this morning. There is some uncertainty how far east 
thunderstorms and rain will develop with this S/W, perhaps into cntl portions of the 
County Warning Area. By this time, the next round of thunderstorms and rain shud have developed 
across across ern Kansas/OK near the sfc low and adjacent fnts. This 
shud develop some sort of qlcs and propagate east-northeast thru the region 
this eve and overnight. This line is expected to move thru the County Warning Area 
overnight with the bulk of the precip ending by Fri morning. 
However, the NSSL WRF does suggest the def-zone precip associated 
with the leading trof much later than the global and other large 
scale mdls. 


With warm temps and dewpoints associated with this system, severe 
storms will be possible thru the night as shear increases. 
However, with mdls depicting k index values into lower 40c, 
believe heaving rain and flash flooding is a greater threat. That 
said, if ongoing storms can move out of the region quickly and 
more insolation during the day, the threat for severe storms will 
increase greatly. For now, it appears greater threat will remain 
SW of the County Warning Area. 


Long term: (friday through wednesday) 
issued at 330 am CDT Thu Oct 2 2014 


Focus turns to temps thru the period. 


Have added slight chance pops on Fri to partially account for the 
slower NSSL WRF soln mentioned above, but mainly due to anticipated 
rain showers associated with the main trof. With additional cloud cover 
expected with the main trof and strong/gusty nwly winds, have 
trended aob the coolest MOS thru Fri night as clouds are expected 
to clear out. Fri night may be the first frost of the fall as 
temps are expected to drop into the mid to lower 30s. Sheltered 
regions wud be most at risk as winds shud stay up around 5 to 8 
kts overnight. Cold temps continue thru Sat with sub-zero 850mb 
temps across much of the County Warning Area. 


Few changes made to forecast for next week due to uncertainty 
among mdls. Mdls are in generally good agreement until tues when 
mdl solns diverge greatly. 


&& 


Aviation: (for the 12z tafs through 12z Friday morning) 
issued at 634 am CDT Thu Oct 2 2014 


Active weather the next 24 hours makes this forecast very 
difficult in terms of timing of thunderstorms. Currently there is 
a band of active convection that stretches across the center of 
the forecast area, paralleling Interstate 70. This activity is 
expected to gradually shift north as the effective boundary from 
last nights convection moves north. Then another round of strong 
to severe thunderstorms is expected to sweep east across the area 
this afternoon/evening ahead of a strong cold front. East to 
southeast wind will become south/southwest ahead of the front and 
then swing around to the northwest in its wake. Period of light 
rain and IFR conditions is expected behind the cold front with 
winds increasing on Friday. 


Specifics for kstl: 


Scattered showers and a few thunderstorms will continue to be in 
the vicinity of the Airport for the next few hours before lifting 
North. East wind should become southerly by mid morning as the 
boundary lifts north. Then another line of strong to severe 
thunderstorms is expected to develop and move across the terminal 
during the late afternoon/early evening hours. Wind will become 
northwest in the wake of the front with a period of IFR 
conditions, and possibly even some light stratiform rain. Wind 
will increase and become gusty on Friday as pressure gradient 
strengthens. 


Cvking 


&& 


Lsx watches/warnings/advisories: 
MO...Flash Flood Watch through this evening for Audrain MO-Boone MO- 
Callaway MO-Cole MO-Gasconade MO-Knox MO-Lewis MO-Lincoln 
MO-Marion MO-Moniteau MO-Monroe MO-Montgomery MO-Osage MO- 
Pike MO-Ralls MO-Shelby MO-Warren MO. 


Illinois...Flash Flood Watch through this evening for Adams Illinois-Brown Illinois- 
Calhoun Illinois-Greene Illinois-Jersey Illinois-Macoupin Illinois-Montgomery Illinois- 
Pike Illinois. 


&& 


$$ 


Weather forecast office lsx 



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