Saint Louis, Missouri Weather Conditions

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Current Conditions

  • 85°
  • Mostly Cloudy
  • Wind: NNW 6 mph
  • Humidity: 40%
  • Visibility: 10.0 miles
  • Dew Point: 58°
  • Pressure: 30.04 in. -
  • Heat Index: 84

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Next 12 Hours

4  pm
7  pm
10  pm
1  am
4  am
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
84°
81°
73°
72°
68°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Mostly Cloudy
  • High: 86 °
  • Low: 66 °
  • Mostly Cloudy
  • Friday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 64 °
  • Chance of a Thunderstorm
  • Saturday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 64 °
  • Chance of a Thunderstorm
  • Sunday
  • Partly Cloudy
  • High: 86 °
  • Low: 64 °
  • Partly Cloudy
  • Monday
  • Partly Cloudy
  • High: 90 °
  • Low: 68 °
  • Partly Cloudy

Forecast for Saint Louis, Missouri

Updated: 10:00 AM CDT on July 31, 2014

  • Thursday

    Partly cloudy in the morning, then overcast. High of 86F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy in the evening, then clear. Low of 66F. Winds less than 5 mph.

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the morning, then overcast with a chance of a thunderstorm and a chance of rain. High of 84F. Winds less than 5 mph. Chance of rain 20%.

  • Friday Night

    Partly cloudy. Low of 64F. Winds less than 5 mph.

  • Saturday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 84F. Winds less than 5 mph. Chance of rain 20%.

  • Saturday Night

    Partly cloudy in the evening, then clear. Low of 64F. Winds from the NE at 5 to 10 mph.

  • Sunday

    Clear in the morning, then partly cloudy. High of 86F. Winds less than 5 mph.

  • Sunday Night

    Partly cloudy in the evening, then clear. Low of 64F. Winds less than 5 mph.

  • Monday

    Clear in the morning, then partly cloudy. High of 90F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy. Low of 68F. Winds from the SE at 5 to 10 mph.

  • Tuesday

    Mostly cloudy. High of 88F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Low of 68F. Winds from the SSE at 5 to 10 mph.

  • Wednesday

    Mostly cloudy. High of 93F. Winds from the South at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Low of 70F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Thursday

    Overcast with a chance of a thunderstorm. High of 82F. Winds from the SW at 5 to 15 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Thursday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 64F. Winds less than 5 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.

  • Friday

    Partly cloudy with a chance of a thunderstorm. High of 79F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 64F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday

    Clear. High of 81F. Winds less than 5 mph.

  • Saturday Night

    Clear. Fog overnight. Low of 64F. Winds less than 5 mph.

  • Sunday

    Clear. High of 84F. Winds less than 5 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 64F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 2:35 PM CDT

Temperature: 86.4 °F Dew Point: 60 °F Humidity: 41% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Lindenwood Park, St Louis, MO

Updated: 2:35 PM CDT

Temperature: 84.0 °F Dew Point: 61 °F Humidity: 46% Wind: SSW at 1.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: MesoWest NAMOK1 IL US UPR, Granite City, IL

Updated: 1:40 PM CDT

Temperature: 87 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 2:17 PM CDT

Temperature: 88.2 °F Dew Point: 64 °F Humidity: 44% Wind: NNE at 2.2 mph Pressure: 29.94 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Parkridge, Brentwood, MO

Updated: 2:34 PM CDT

Temperature: 86.0 °F Dew Point: - Humidity: - Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: South County, Affton, MO

Updated: 2:35 PM CDT

Temperature: 82.8 °F Dew Point: 63 °F Humidity: 51% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Old Skewl, Fairview Heights, IL

Updated: 2:35 PM CDT

Temperature: 83.4 °F Dew Point: 60 °F Humidity: 46% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: New Goose, Fairview Heights, IL

Updated: 2:35 PM CDT

Temperature: 86.3 °F Dew Point: 62 °F Humidity: 45% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: West End, Belleville, IL

Updated: 2:35 PM CDT

Temperature: 87.4 °F Dew Point: 36 °F Humidity: 34% Wind: NE at 2.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Millstadt, Millstadt, IL

Updated: 2:35 PM CDT

Temperature: 89.6 °F Dew Point: 70 °F Humidity: 52% Wind: West at 5.8 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Crestwood, Crestwood, MO

Updated: 2:34 PM CDT

Temperature: 84.0 °F Dew Point: 62 °F Humidity: 48% Wind: Calm Pressure: 29.77 in Hourly Precipitation: - Heat Index: 85 °F Graphs

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

Updated: 2:35 PM CDT

Temperature: 84.4 °F Dew Point: - Humidity: 43% Wind: SW at 1.0 mph Pressure: 29.40 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

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

Updated: 2:35 PM CDT

Temperature: 82.0 °F Dew Point: 65 °F Humidity: 56% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Greg and Linsay's House, Swansea, IL

Updated: 2:35 PM CDT

Temperature: 80.6 °F Dew Point: 61 °F Humidity: 51% Wind: ENE at 2.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: StormGrl2001, Fairview Heights, IL

Updated: 2:30 PM CDT

Temperature: 82.2 °F Dew Point: 60 °F Humidity: 48% Wind: ESE at 2.7 mph Pressure: 30.04 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 2:34 PM CDT

Temperature: 86.2 °F Dew Point: 60 °F Humidity: 42% Wind: WSW at 2.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

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

Updated: 2:31 PM CDT

Temperature: 84.2 °F Dew Point: 63 °F Humidity: 49% Wind: ENE at 3.7 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Chateau Estates, Fairview Heights, IL

Updated: 2:34 PM CDT

Temperature: 86.6 °F Dew Point: 61 °F Humidity: 42% Wind: East at 1.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Essex and Geyer, St. Louis, MO

Updated: 2:30 PM CDT

Temperature: 84.7 °F Dew Point: 62 °F Humidity: 46% Wind: SSW at 1.1 mph Pressure: 29.88 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Maryland Heights, St Louis, MO

Updated: 2:23 PM CDT

Temperature: 85.9 °F Dew Point: 60 °F Humidity: 41% Wind: SSE at 2.0 mph Pressure: 29.39 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

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

Updated: 2:32 PM CDT

Temperature: 83.8 °F Dew Point: 61 °F Humidity: 47% Wind: Calm Pressure: 30.02 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Sunset Hills, St Louis, MO

Updated: 2:27 PM CDT

Temperature: 81.7 °F Dew Point: 61 °F Humidity: 50% Wind: Calm Pressure: 30.03 in Hourly Precipitation: - Heat Index: 82 °F Graphs

Location: Quiet Village, Creve Coeur, MO

Updated: 2:35 PM CDT

Temperature: 82.7 °F Dew Point: 58 °F Humidity: 44% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: St. Louis, MO

Updated: 2:35 PM CDT

Temperature: 84.4 °F Dew Point: 63 °F Humidity: 49% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

Location: Rolling Meadows Dr, Maryville, IL

Updated: 2:35 PM CDT

Temperature: 82.9 °F Dew Point: 57 °F Humidity: 41% Wind: NE at 2.7 mph Pressure: 29.44 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 2:35 PM CDT

Temperature: 85.7 °F Dew Point: 61 °F Humidity: 43% Wind: SSE at 1.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 86 °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 
1244 PM CDT Thu Jul 31 2014 


Short term: (through tonight) 
issued at 307 am CDT Thu Jul 31 2014 


Expect highs in the upper 70s to mid 80s followed by overnight 
lows in the lower 60s. Such temperatures are 3-10 degrees below 
average for this time of year. Light rain is possible across the 
extreme southern County Warning Area today on the northern fringes of an area of 
precipitation which is being generated by a shortwave moving from 
OK into Arkansas. Isolated to scattered precip is also possible late 
this afternoon and early tonight across the northern County Warning Area ahead of 
an approaching shortwave which is diving south-southeastward from 
ND/Minnesota per 06z water vapor imagery. 


Kanofsky 


Long term: (tomorrow through wednesday) 
issued at 307 am CDT Thu Jul 31 2014 


Diurnal instability combined with lift ahead of occasional weak 
shortwaves might produce iso-sct sh/ts over the next couple of 
days, especially during the afternoon hours. Slightly cooler than 
average temperatures will continue until the northwest flow 
pattern aloft begins to change over the weekend, eventually 
becoming quasizonal. After an upper ridge de-amplifies and shifts 
into the plains early next week while surface winds turn 
southerly, seasonable levels of heat/humidity should return to the 
region. The next opportunity for widespread rainfall appears to be 
associated with a potential synoptic scale system during the 
middle of next week. 


Kanofsky 


&& 


Aviation: (for the 18z tafs through 18z Friday afternoon) 
issued at 1225 PM CDT Thu Jul 31 2014 


VFR conditions and generally light and variable winds will prevail 
through the period for all taf sites with just a couple 
exceptions. First, recent guidance indicates the potential for 
light showers overnight tonight over southern Iowa and northern MO, 
but given uncertainty whether it will occur at the terminal, have 
not mentioned in the taf. Second exception is radiation fog 
development during the late overnight and early morning, which 
would be similar to what occurred last night. Have included a few 
hours of fog for ksus, kcps, and KUIN, which could reduce 
visibilities down to MVFR/IFR conditions. However, any fog that 
develops should be quick to burn off after sunrise Friday. 


Specifics for kstl: 


VFR conditions will prevail through the period. Scattered diurnal 
cumulus today will return Friday, becoming broken by the early 
afternoon. There is a possibility for some showers and 
thunderstorms Friday afternoon, but given uncertainties regarding 
timing and coverage, have not included mention in the taf at this 
time. Light and variable winds today and tonight will become 
easterly around 05kt on Friday, and while some radiation fog is 
expected around the area late tonight and early Friday morning, 
temperature/dewpoint spreads at kstl do not indicate impacts at 
the terminal. 


Jp 


&& 


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


$$ 


Weather forecast office lsx 



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