Saint Louis, Missouri Weather Conditions

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Current Conditions

  • 66°
  • Overcast
  • Wind: East 9 mph
  • Humidity: 75%
  • Visibility: 9.0 miles
  • Dew Point: 58°
  • Pressure: 29.94 in. -

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Next 12 Hours

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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of a Thunderstorm
  • High: 72 °
  • Low: 61 °
  • Chance of T-Storms
  • Thursday
  • Partly Cloudy
  • High: 73 °
  • Low: 59 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 79 °
  • Low: 64 °
  • Partly Cloudy
  • Saturday
  • Mostly Cloudy
  • High: 84 °
  • Low: 66 °
  • Mostly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 82 °
  • Low: 57 °
  • Partly Cloudy

Forecast for Saint Louis, Missouri

Updated: 4:00 PM CDT on September 17, 2014

  • Wednesday

    Overcast with a chance of a thunderstorm and a chance of rain, then a chance of a thunderstorm and rain showers in the afternoon. High of 72F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.

  • Wednesday Night

    Partly cloudy with a chance of rain. Low of 61F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday

    Mostly cloudy. High of 73F. Winds from the North at 5 to 10 mph shifting to the West in the afternoon.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 59F. Winds from the SE at 5 to 10 mph.

  • Friday

    Partly cloudy. High of 79F. Winds from the SE at 5 to 10 mph.

  • Friday Night

    Clear. Low of 64F. Winds from the SSE at 5 to 10 mph.

  • Saturday

    Mostly cloudy. High of 84F. Winds from the SSW at 5 to 10 mph.

  • Saturday Night

    Overcast in the evening, then mostly cloudy with a chance of a thunderstorm and rain. Low of 66F. Winds from the SW at 5 to 10 mph. Chance of rain 40%.

  • Sunday

    Overcast in the morning, then clear. High of 82F. Winds from the WNW at 5 to 10 mph.

  • Sunday Night

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

  • Monday

    Partly cloudy. High of 70F. Winds from the North at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Low of 52F. Winds from the NE at 5 to 10 mph.

  • Tuesday

    Partly cloudy. High of 72F. Winds from the ENE at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 52F. Winds from the East at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 70F. Winds from the ESE at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 45F. Winds from the East at 5 to 10 mph.

  • Thursday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 77F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday Night

    Mostly cloudy. Fog overnight. Low of 52F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 72F. Winds less than 5 mph.

  • Friday Night

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

  • Saturday

    Clear. High of 73F. Winds less than 5 mph.

  • Saturday Night

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

  • Sunday

    Clear. High of 73F. Winds less than 5 mph.

  • Sunday Night

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

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Crestwood, Crestwood, MO

Updated: 4:29 PM CDT

Temperature: 67.1 °F Dew Point: 58 °F Humidity: 74% Wind: Calm Pressure: 29.65 in Hourly Precipitation: - Graphs

Location: St. Louis, MO

Updated: 4:34 PM CDT

Temperature: 66.7 °F Dew Point: 61 °F Humidity: 81% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Graphs

Location: Sunset Hills, St Louis, MO

Updated: 4:14 PM CDT

Temperature: 66.1 °F Dew Point: 60 °F Humidity: 81% Wind: Calm Pressure: 29.91 in Hourly Precipitation: - Graphs

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

Updated: 4:34 PM CDT

Temperature: 65.8 °F Dew Point: 60 °F Humidity: 80% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:31 PM CDT

Temperature: 68.0 °F Dew Point: 60 °F Humidity: 77% Wind: NE at 1.1 mph Pressure: 29.90 in Hourly Precipitation: - Graphs

Location: Essex and Geyer, St. Louis, MO

Updated: 4:23 PM CDT

Temperature: 67.3 °F Dew Point: 60 °F Humidity: 77% Wind: WSW at 1.7 mph Pressure: 29.73 in Hourly Precipitation: - Graphs

Location: Webster Groves, Webster Groves, MO

Updated: 4:30 PM CDT

Temperature: 67.0 °F Dew Point: 56 °F Humidity: 69% Wind: NE at 2.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: South County, Affton, MO

Updated: 4:34 PM CDT

Temperature: 66.0 °F Dew Point: 60 °F Humidity: 82% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:30 PM CDT

Temperature: 66.0 °F Dew Point: 59 °F Humidity: 78% Wind: ENE at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:29 PM CDT

Temperature: 66.6 °F Dew Point: - Humidity: 73% Wind: ESE at 2.0 mph Pressure: 29.27 in Hourly Precipitation: 0.00 in Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 4:33 PM CDT

Temperature: 69.6 °F Dew Point: 61 °F Humidity: 73% Wind: WSW at 1.7 mph Pressure: 29.89 in Hourly Precipitation: - Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 4:34 PM CDT

Temperature: 66.1 °F Dew Point: 60 °F Humidity: 81% Wind: East at 3.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 4:30 PM CDT

Temperature: 65.5 °F Dew Point: 60 °F Humidity: 83% Wind: East at 1.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Parkridge, Brentwood, MO

Updated: 4:34 PM CDT

Temperature: 66.4 °F Dew Point: - Humidity: - Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Manchester, MO, Manchester, MO

Updated: 4:18 PM CDT

Temperature: 66.1 °F Dew Point: 61 °F Humidity: 83% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:30 PM CDT

Temperature: 67.3 °F Dew Point: - Humidity: 67% Wind: North at - Pressure: 29.35 in Hourly Precipitation: - Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 4:34 PM CDT

Temperature: 68.4 °F Dew Point: 62 °F Humidity: 79% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.01 in Graphs

Location: Twin Oaks, Twin Oaks, MO

Updated: 4:32 PM CDT

Temperature: 67.6 °F Dew Point: 61 °F Humidity: 79% Wind: Calm Pressure: 29.81 in Hourly Precipitation: - Graphs

Location: ARNOLD, Arnold, MO

Updated: 4:30 PM CDT

Temperature: 67.6 °F Dew Point: - Humidity: 71% Wind: North at - Pressure: 29.26 in Hourly Precipitation: - Graphs

Location: Ladue, St. Louis, MO

Updated: 4:30 PM CDT

Temperature: 68.2 °F Dew Point: - Humidity: 67% Wind: North at - Pressure: 29.29 in Hourly Precipitation: - Graphs

Location: Arnold, Arnold, MO

Updated: 4:34 PM CDT

Temperature: 65.5 °F Dew Point: 61 °F Humidity: 85% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: San Luis Trails, Fenton, MO

Updated: 4:34 PM CDT

Temperature: 67.6 °F Dew Point: 59 °F Humidity: 74% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 4:34 PM CDT

Temperature: 66.3 °F Dew Point: 61 °F Humidity: 82% Wind: East at 3.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: Arnold, MO

Updated: 4:26 PM CDT

Temperature: 65.8 °F Dew Point: 63 °F Humidity: 90% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Forest Park, St. Louis, MO

Updated: 4:30 PM CDT

Temperature: 68.0 °F Dew Point: - Humidity: 68% Wind: North at - Pressure: 29.37 in Hourly Precipitation: 0.00 in Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 4:34 PM CDT

Temperature: 68.0 °F Dew Point: 60 °F Humidity: 77% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Graphs

Location: Christopher Winds, Oakville, MO

Updated: 4:34 PM CDT

Temperature: 66.2 °F Dew Point: 62 °F Humidity: 85% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:26 PM CDT

Temperature: 64.8 °F Dew Point: 58 °F Humidity: 78% Wind: East at 1.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:28 PM CDT

Temperature: 67.5 °F Dew Point: 56 °F Humidity: 68% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Graphs

Location: Arbor Valley, Ballwin, MO

Updated: 4:34 PM CDT

Temperature: 66.6 °F Dew Point: 61 °F Humidity: 81% Wind: NNW at 2.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Graphs

Location: Graeser Acres, St. Louis, MO

Updated: 4:34 PM CDT

Temperature: 65.3 °F Dew Point: 58 °F Humidity: 76% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 4:34 PM CDT

Temperature: 66.3 °F Dew Point: 60 °F Humidity: 79% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 4:34 PM CDT

Temperature: 66.1 °F Dew Point: 59 °F Humidity: 79% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Graphs

Location: Ross Ave, St. Louis, MO

Updated: 4:34 PM CDT

Temperature: 66.0 °F Dew Point: 58 °F Humidity: 74% Wind: SSW at 2.3 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Graphs

Location: Maryland Heights, St Louis, MO

Updated: 4:31 PM CDT

Temperature: 66.4 °F Dew Point: 59 °F Humidity: 76% Wind: East at 3.0 mph Pressure: 29.27 in Hourly Precipitation: 0.00 in Graphs

Location: Westglen Village, Ballwin, MO

Updated: 4:34 PM CDT

Temperature: 66.4 °F Dew Point: 61 °F Humidity: 84% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 4:24 PM CDT

Temperature: 67.8 °F Dew Point: 62 °F Humidity: 81% Wind: East at 6.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
312 PM CDT Wed Sep 17 2014 


Short term: (through late tonight) 
issued at 311 PM CDT Wed Sep 17 2014 


Old peripheral upper level energy from the mesoscale convective system that is now pushing 
into northern Arkansas will continue to generate isolated-scattered 
showers into the early evening before it either weakens too much to 
generate anything or it exits our area to the east. 


Otherwise, a warm frontal boundary over southeast Kansas and extreme 
southwest MO, which has been nearly stationary due to the mesoscale convective system rain, 
will try to move northeast later tonight and should generate a new 
round of rain showers/thunderstorms and rain over areas mainly to the south and west of stl 
Metro. Thunder chances up our way look meager enough to leave out 
for now. 


Clouds are starting to break in southwest Illinois now and this trend 
should continue and even quicken as the upper level energy 
generating the showers there comes to an end or exits. This will 
leave the leftover low cloud mainly to the west of the MS river and 
the light easterly flow will begin to erode the eastern edge of 
this, albeit slowly, this evening. By late tonight, though, a 
favorable fog/stratus setup along the periphery of the surviving low 
cloud in central-southeast MO may actually allow the leftovers to 
grow a bit back to the east again. 


Went with a more aggressive cooling on the Illinois side of the river 
tonight due to expected clearing, while preferred the warmer MOS in 
central MO. In-between, tended to favor the cooler MOS guidance as 
well. 


Tes 


Long term: (thursday through next wednesday) 
issued at 311 PM CDT Wed Sep 17 2014 


Surface ridge to continue building in on Thursday. Could see some 
lingering light showers over far southern portions of forecast area 
in the morning. Otherwise, clouds to clear out from northeast to 
southwest with highs in the low 70s. Lows Thursday night will be in 
the 50s. 


By Friday, surface ridge moves off to the east allowing warmer 
southerly flow to return to the region. However, next weather system 
to move in on Saturday with showers and thunderstorms possible and 
persist through Saturday night before tapering off on Sunday. Highs 
on Friday will be in the mid to upper 70s, in the low to mid 80s on 
Saturday, then begin to cool back down on Sunday as next ridge of 
high pressure builds in. 


Cooler weather to persist through the middle of next week with highs 
in the 70s and lows in the 40s and 50s. 


Byrd 
&& 


Aviation: (for the 18z tafs through 18z Thursday afternoon) 
issued at 1230 PM CDT Wed Sep 17 2014 


Region of sub-VFR ceilings, whose eastern edge is near the MS 
river, will begin to erode this afternoon and shrink back to the 
west as easterly flow combined with dissipating rain showers kick in more. 
This will result in some intermittent MVFR ceilings across stl 
Metro sites with much more persistent sub-VFR conditions at cou, 
unfortunately. May eventually see a break in cou very late this 
afternoon and into parts of this evening, but looking like IFR 
conditions are likely once again later tonight there. Depending on 
how well we clear out further east into stl Metro and uin, may see 
some fog development in an otherwise favorable setup with light 
east winds and damp ground. Threw out initial numbers on vsbys 
with this being understood conditionally--if clearing is more 
substantial in those areas, will need to go more widespread IFR 
vsbys. A return to VFR is anticipated across all sites by midday 
Thursday, except perhaps cou. 


Specifics for kstl: intermittent MVFR ceilings likely for the next 
2-3 hours before easterly flow and time of day should push the 
eastern edge backward. Period of VFR then expected for late this 
afternoon and early this evening before some fog is expected to 
develop. How well we clear out will determine how bad the fog gets 
as this is an otherwise good setup for it given light easterly 
flow, lack of previous day mixing, and recent rainfall. A return 
to VFR then expected late Thursday morning. 


Tes 
&& 


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


$$ 
Weather forecast office lsx 










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