Saint Louis, Missouri Weather Conditions

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Current Conditions

  • 51°
  • Partly Cloudy
  • Wind: WSW 10 mph
  • Humidity: 63%
  • Visibility: 10.0 miles
  • Dew Point: 39°
  • Pressure: 29.79 in. +

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Next 12 Hours

3  am
6  am
9  am
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3  pm
Mostly Cloudy
Mostly Cloudy
Overcast
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Mostly Cloudy
  • High: 48 °
  • Low: 27 °
  • Mostly Cloudy
  • Friday
  • Clear
  • High: 39 °
  • Low: 25 °
  • Clear
  • Saturday
  • Rain
  • High: 43 °
  • Low: 34 °
  • Rain
  • Sunday
  • Chance of Snow
  • High: 36 °
  • Low: 5 °
  • Chance of Snow
  • Monday
  • Partly Cloudy
  • High: 27 °
  • Low: 21 °
  • Partly Cloudy

Forecast for Saint Louis, Missouri

Updated: 3:00 AM CST on January 29, 2015

  • Thursday

    Overcast. High of 48F. Windy. Winds from the NW at 20 to 25 mph with gusts to 35 mph.

  • Thursday Night

    Partly cloudy. Low of 27F. Breezy. Winds from the NW at 10 to 20 mph.

  • Friday

    Clear in the morning, then partly cloudy. High of 39F. Winds from the North at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low of 25F. Winds less than 5 mph.

  • Saturday

    Overcast with a chance of snow and a chance of rain in the afternoon. High of 43F. Winds from the SSE at 5 to 10 mph. Chance of snow 20%.

  • Saturday Night

    Overcast with rain, then a chance of rain after midnight. Low of 34F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.

  • Sunday

    Overcast with a chance of snow and a chance of rain, then a chance of snow and rain showers in the afternoon. High of 36F with a windchill as low as 19F. Breezy. Winds from the NE at 10 to 20 mph. Chance of snow 70% with accumulations up to 2 in. possible.

  • Sunday Night

    Partly cloudy with a chance of snow. Low of 5F with a windchill as low as -4F. Breezy. Winds from the North at 15 to 20 mph. Chance of snow 20%.

  • Monday

    Mostly cloudy. High of 27F. Winds from the WNW at 5 to 10 mph.

  • Monday Night

    Clear. Low of 21F with a windchill as low as 9F. Winds from the SSE at 5 to 20 mph.

  • Tuesday

    Partly cloudy. Fog early. High of 50F. Breezy. Winds from the SW at 15 to 20 mph.

  • Tuesday Night

    Partly cloudy. Low of 19F with a windchill as low as 12F. Winds from the WNW at 5 to 15 mph.

  • Wednesday

    Partly cloudy. High of 43F. Winds less than 5 mph.

  • Wednesday Night

    Mostly cloudy. Low of 7F with a windchill as low as -2F. Winds from the North at 5 to 15 mph.

  • Thursday

    Clear. High of 36F. Winds from the ENE at 5 to 10 mph shifting to the SSE in the afternoon.

  • Thursday Night

    Clear. Low of 18F. Winds from the NE at 5 to 15 mph shifting to the WNW after midnight.

  • Friday

    Clear. Fog early. High of 36F. Winds less than 5 mph.

  • Friday Night

    Clear. Fog overnight. Low of 21F. Winds less than 5 mph.

  • Saturday

    Clear. High of 41F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 25F. Winds less than 5 mph.

  • Sunday

    Clear. High of 48F. Winds from the SW at 5 to 10 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 25F. Winds from the SW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Crestwood, Crestwood, MO

Updated: 4:09 AM CST

Temperature: 49.3 °F Dew Point: 42 °F Humidity: 76% Wind: Calm Pressure: 29.51 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: APRSWXNET Sappington MO US, Saint Louis, MO

Updated: 3:47 AM CST

Temperature: 51 °F Dew Point: 42 °F Humidity: 72% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: St. Louis, MO

Updated: 4:13 AM CST

Temperature: 49.7 °F Dew Point: 41 °F Humidity: 73% Wind: Calm Pressure: 29.70 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: APRSWXNET Sunset Hills MO US, Saint Louis, MO

Updated: 3:44 AM CST

Temperature: 51 °F Dew Point: 42 °F Humidity: 71% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: - Graphs

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

Updated: 4:13 AM CST

Temperature: 49.5 °F Dew Point: 42 °F Humidity: 74% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 50 °F Graphs

Location: Deerpath Acres Court, Saint Louis, MO

Updated: 4:10 AM CST

Temperature: 48.9 °F Dew Point: 40 °F Humidity: 70% Wind: North at - Pressure: 29.80 in Hourly Precipitation: - Windchill: 49 °F Graphs

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

Updated: 4:00 AM CST

Temperature: 47.8 °F Dew Point: 42 °F Humidity: 79% Wind: West at 1.1 mph Pressure: 29.78 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Essex and Geyer, St. Louis, MO

Updated: 4:07 AM CST

Temperature: 46.6 °F Dew Point: 40 °F Humidity: 79% Wind: Calm Pressure: 29.60 in Hourly Precipitation: - Windchill: 47 °F Graphs

Location: Webster Groves, Webster Groves, MO

Updated: 4:09 AM CST

Temperature: 52.1 °F Dew Point: 34 °F Humidity: 50% Wind: SSE at 6.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: South County, Affton, MO

Updated: 4:13 AM CST

Temperature: 48.1 °F Dew Point: 40 °F Humidity: 73% Wind: WSW at 2.0 mph Pressure: 29.69 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: APRSWXNET Affton MO US, Saint Louis, MO

Updated: 3:48 AM CST

Temperature: 48 °F Dew Point: 39 °F Humidity: 72% Wind: Calm Pressure: 29.67 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Gabriel Drive, Kirkwood, MO

Updated: 4:10 AM CST

Temperature: 48.7 °F Dew Point: 39 °F Humidity: 68% Wind: North at - Pressure: 29.88 in Hourly Precipitation: - Windchill: 49 °F Graphs

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

Updated: 4:10 AM CST

Temperature: 50.2 °F Dew Point: 42 °F Humidity: 73% Wind: SW at 1.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Sweetbriar Lane, Kirkwood, MO

Updated: 4:11 AM CST

Temperature: 49.5 °F Dew Point: 40 °F Humidity: 69% Wind: North at - Pressure: 29.66 in Hourly Precipitation: - Windchill: 50 °F Graphs

Location: BUCKLEY MEADOWS 4, Saint Louis, MO

Updated: 4:07 AM CST

Temperature: 50.4 °F Dew Point: 41 °F Humidity: 70% Wind: South at 2.7 mph Pressure: 29.68 in Hourly Precipitation: - Windchill: - Graphs

Location: Lindenwood Park, Saint Louis, MO

Updated: 4:11 AM CST

Temperature: 48.9 °F Dew Point: 42 °F Humidity: 78% Wind: North at - Pressure: 29.74 in Hourly Precipitation: - Windchill: 49 °F Graphs

Location: APRSWXNET Fenton MO US, Fenton, MO

Updated: 3:49 AM CST

Temperature: 53 °F Dew Point: 43 °F Humidity: 68% Wind: NW at 1 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 4:09 AM CST

Temperature: 50.2 °F Dew Point: 41 °F Humidity: 70% Wind: South at 1.1 mph Pressure: 29.74 in Hourly Precipitation: - Windchill: - Graphs

Location: Bent Tree Trails, Fenton, MO

Updated: 4:00 AM CST

Temperature: 46.4 °F Dew Point: 40 °F Humidity: 78% Wind: SSE at 3.1 mph Pressure: 29.49 in Hourly Precipitation: - Windchill: 46 °F Graphs

Location: Fawnridge Drive, Saint Louis, MO

Updated: 4:11 AM CST

Temperature: 48.2 °F Dew Point: 41 °F Humidity: 76% Wind: North at - Pressure: 29.90 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: APRSWXNET St. Louis MO US, Saint Louis, MO

Updated: 3:48 AM CST

Temperature: 50 °F Dew Point: 41 °F Humidity: 71% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 4:13 AM CST

Temperature: 49.3 °F Dew Point: 41 °F Humidity: 73% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 4:10 AM CST

Temperature: 43.6 °F Dew Point: 38 °F Humidity: 82% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Parkridge, Brentwood, MO

Updated: 4:13 AM CST

Temperature: 51.4 °F Dew Point: - Humidity: - Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Jefferson Barracks, Mehlville, MO

Updated: 4:13 AM CST

Temperature: 49.5 °F Dew Point: 41 °F Humidity: 73% Wind: South at 3.5 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Lakeview Ridge Drive, Fenton, MO

Updated: 4:10 AM CST

Temperature: 58.1 °F Dew Point: 46 °F Humidity: 65% Wind: North at - Pressure: 29.83 in Hourly Precipitation: - Windchill: - Graphs

Location: Boulevard Heights, St. Louis, MO

Updated: 4:10 AM CST

Temperature: 50.4 °F Dew Point: 41 °F Humidity: 69% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Windchill: - Graphs

Location: Franz Park, St. Louis, MO

Updated: 4:10 AM CST

Temperature: 48.4 °F Dew Point: 42 °F Humidity: 78% Wind: North at - Pressure: 29.73 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Cathedral Drive, Saint Louis, MO

Updated: 4:10 AM CST

Temperature: 49.3 °F Dew Point: 42 °F Humidity: 75% Wind: North at - Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Ballas Courts, Saint Louis, MO

Updated: 4:13 AM CST

Temperature: 50.0 °F Dew Point: 40 °F Humidity: 68% Wind: SW at 4.3 mph Pressure: 29.30 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

Location: Manchester, MO, Manchester, MO

Updated: 4:01 AM CST

Temperature: 49.0 °F Dew Point: 41 °F Humidity: 75% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 49 °F Graphs

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

Updated: 4:10 AM CST

Temperature: 50.4 °F Dew Point: - Humidity: 63% Wind: North at - Pressure: 29.16 in Hourly Precipitation: - Windchill: - Graphs

Location: AIRNow BROADWAY (South) MO MODNR, Saint Louis, MO

Updated: 3:00 AM CST

Temperature: 51 °F Dew Point: 38 °F Humidity: 60% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 4:13 AM CST

Temperature: 52.2 °F Dew Point: 43 °F Humidity: 70% Wind: West at 3.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Holly Hills, Saint Louis, MO

Updated: 4:13 AM CST

Temperature: 46.2 °F Dew Point: 38 °F Humidity: 74% Wind: Calm Pressure: 29.03 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Twin Oaks, Twin Oaks, MO

Updated: 4:05 AM CST

Temperature: 50.5 °F Dew Point: 42 °F Humidity: 74% Wind: West at 2.7 mph Pressure: 29.67 in Hourly Precipitation: - Windchill: - Graphs

Location: ARNOLD, Arnold, MO

Updated: 4:10 AM CST

Temperature: 52.0 °F Dew Point: - Humidity: 60% Wind: North at - Pressure: 29.09 in Hourly Precipitation: - Windchill: - Graphs

Location: AIRNow ARNOLD MO MODNR, Arnold, MO

Updated: 3:00 AM CST

Temperature: 52 °F Dew Point: 39 °F Humidity: 59% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Ladue, St. Louis, MO

Updated: 4:10 AM CST

Temperature: 52.5 °F Dew Point: - Humidity: 62% Wind: North at - Pressure: 29.13 in Hourly Precipitation: - Windchill: - Graphs

Location: AIRNow Ladue MO MODNR, Saint Louis, MO

Updated: 3:00 AM CST

Temperature: 53 °F Dew Point: 40 °F Humidity: 60% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
349 am CST Thu Jan 29 2015 


Short term: (through late this afternoon) 
issued at 343 am CST Thu Jan 29 2015 


Observational data at 08z indicated a low pressure area over 
northwest Illinois with a cold front extending to the southwest of it thru 
uin and cou. A warm front extended from near uin southeastward thru 
southern Illinois. Temps have stayed up or risen into the 50s in the warm 
sector of this system, and then have plunged into the 30s quickly 
behind the cold front in Iowa and far northwest MO. Satellite data 
shows low clouds move in shortly after cold frontal passage with 
plenty more where they came from over the upper Midwest and northern 
plains. Radar data shows generally echo-free mosaics over our 
region but some obs at ground level have indicated spotty sprinkles 
or drizzle underneath the low cloud shield that moves in. 
Otherwise, an upper level disturbance was over northern MO early 
this morning with another further upstream over eastern South Dakota--all part 
of the northwest flow aloft that is in place. 


The cold front will push thru the forecast area by 15z with low 
clouds to then inundate and persist for the remainder of the day. 
Some clearing is then expected in central MO late, possibly 
spreading eastward into tonight. High temperatures for the day, 
technically, will all be hit early this morning. But for daytime 
purposes, we should see near steady temps after the initial fall 
shortly after frontal passage. This favors at or below the coolest 
MOS for most locales, except near the front after daybreak for areas 
south and east of stl Metro, where the warmer mav MOS will probably 
work out better given the gradient. 


Pcpn will be a tough call today since there is not much to latch on 
to and radar is having a tough time picking it up. Added some 
scattered sprinkles or flurries for northern MO and central Illinois thru 
this morning where it looks like there will be some better upper 
level support and lift as well as low level convergence. These 
should all be significantly reduced by 18z and have kept the 
afternoon pcpn-free. 


Tes 


Long term: (tonight through wednesday) 
issued at 343 am CST Thu Jan 29 2015 


Surface ridge to build into the region tonight with northwest winds 
gradually diminishing. Colder air to filter in with lows in the low 
to mid 20s. 


On Friday, mostly sunny skies to prevail but temperatures will only 
rise into the low 30s east to low 40s west. 


Surface ridge to move off to the east late Friday night allowing 
southerly winds to return once again ahead of next weather system. 
However, lows will still be in the 20s Friday night. 


As for next weather system, models still have differences with 
placement and timing of frontal boundary. NAM is the slowest and 
warmest initially while the GFS and European model (ecmwf) are a bit faster and 
colder. Will side more with GFS/European model (ecmwf) solutions, with precipitation 
beginning during the day Saturday and spreading east. It will begin 
as a mix of rain and snow, transition to mostly rain briefly during 
the afternoon hours with highs in the low 40s. Then as colder air 
filters in rather quickly, precipitation to change to all snow 
everywhere just after 00z Sunday. As for precipitation amounts, both 
the GFS and European model (ecmwf) 00z Thursday runs are showing highest values along 
the I-70 corridor. However, since there continues to be plenty of 
model differences with this storm, it is difficult to determine 
snowfall amounts and where the maximum axis of snow will occur. For 
now it still does appear that at least a portion of our forecast 
area will see accumulating snow Saturday night and Sunday. 


Beyond that, the precipitation will come to an end Sunday night with 
colder air filtering in and temperatures at or below normal for the 
rest of the forecast period. Extended models do indicate a clipper 
system will slide through Tuesday night and Wednesday with most of 
the energy to the north of the forecast area, so kept slight chance 
pops through the period. 


Byrd 
&& 


Aviation: (for the 06z tafs through 06z Thursday night) 
issued at 1132 PM CST Wed Jan 28 2015 


Cold front has moved through central Missouri and should pass 
through the taf sites late tonight. MVFR ceilings are expected 
within a few hours after fropa...along with winds sharply veering 
to the northwest along with gusts 20-30 knots. Some uncertainty as 
to how long these ceilings will persist. For now continued to lean 
a bit pessimistic given expansive overcast deck on 11-3.9 micron 
satellite imagery. NAM guidance looked pretty good and followed 
closely for ceiling trends through the day on Saturday. This 
resulted in tafs with ceilings rising and then scattering out by 
afternoon. 


Specifics for kstl: 
cold front has moved through central Missouri and should pass 
through the taf sites late tonight. MVFR ceilings are expected by 
1200 UTC behind the front..along with winds sharply veering to the 
northwest. Some uncertainty as to how long these ceilings will 
persist. For now continued to lean a bit pessimistic given 
expansive overcast deck on 11-3.9 micron satellite imagery. NAM 
guidance looked pretty good and followed closely for ceiling 
trends through the day on Thursday. Winds should slacken up a bit 
as sfc ridge approaches area on Thursday night. 


Gosselin 
&& 


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


$$ 
Weather forecast office lsx 










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