Saint Louis, Missouri Weather Conditions

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Current Conditions

  • 83°
  • Overcast
  • Wind: South 10 mph
  • Humidity: 69%
  • Visibility: 10.0 miles
  • Dew Point: 72°
  • Pressure: 29.87 in. 0
  • Heat Index: 88

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Next 12 Hours

11  pm
2  am
5  am
8  am
11  am
Overcast
Overcast
Chance of a Thunderstorm
Chance of T-storms
Chance of Rain
Chance of Rain
Rain
Rain
Thunderstorm
T-storms
82°
78°
76°
76°
74°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Chance of Rain
  • High: 76 °
  • Low: 62 °
  • Chance of Rain
  • Wednesday
  • Thunderstorm
  • High: 70 °
  • Low: 63 °
  • T-Storms
  • Thursday
  • Overcast
  • High: 84 °
  • Low: 70 °
  • Overcast
  • Friday
  • Partly Cloudy
  • High: 93 °
  • Low: 73 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 94 °
  • Low: 74 °
  • Clear

Forecast for Saint Louis, Missouri

Updated: 10:00 PM CDT on January 06, 2015

Flash Flood Watch in effect through Wednesday evening...
  • Monday

    Thunderstorms. Lows overnight in the mid 70s.

  • Monday Night

    Thunderstorms. Low 74F. Winds SSW at 5 to 10 mph. Chance of rain 80%.

  • Tuesday

    Showers and a few thunderstorms likely. High 76F. Winds NW at 10 to 15 mph. Chance of rain 80%. 1 to 2 inches of rain expected.

  • Tuesday Night

    Overcast. Slight chance of a rain shower. Low 62F. Winds NE at 5 to 10 mph.

  • Wednesday

    Thunderstorms likely. High near 70F. Winds E at 10 to 15 mph. Chance of rain 80%.

  • Wednesday Night

    Thunderstorms during the evening, then cloudy skies overnight. Low 63F. Winds SW at 10 to 15 mph. Chance of rain 80%.

  • Thursday

    Cloudy skies. High 84F. Winds WNW at 5 to 10 mph.

  • Thursday Night

    Mostly cloudy in the evening with scattered thunderstorms developing after midnight. Low near 70F. Winds light and variable. Chance of rain 40%.

  • Friday

    Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 93F. Winds SSW at 10 to 15 mph.

  • Friday Night

    Mostly clear. Low 73F. Winds SSW at 5 to 10 mph.

  • Saturday

    Abundant sunshine. High 94F. Winds SW at 10 to 15 mph.

  • Saturday Night

    Clear. Low 74F. Winds SW at 5 to 10 mph.

  • Sunday

    Sunny. High 93F. Winds SW at 10 to 15 mph.

  • Sunday Night

    A few clouds from time to time. Low around 75F. Winds WSW at 5 to 10 mph.

  • Monday

    Sunny early. Scattered thunderstorms developing later in the day. High 88F. Winds WNW at 10 to 15 mph. Chance of rain 40%.

  • Monday Night

    Scattered showers and thunderstorms. Low around 70F. Winds N at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Partly to mostly cloudy skies with scattered thunderstorms mainly in the morning. High 83F. Winds N at 10 to 15 mph. Chance of rain 40%.

  • Tuesday Night

    Mostly clear skies. Low 67F. Winds NE at 5 to 10 mph.

  • Wednesday

    Partly cloudy skies. High 86F. Winds ENE at 10 to 15 mph.

  • Wednesday Night

    A few clouds from time to time. Low 69F. Winds E at 5 to 10 mph.

  • Thursday

    Sunshine along with some cloudy intervals. High 89F. Winds ESE at 10 to 15 mph.

  • Thursday Night

    Clear skies. Low 71F. Winds SE at 5 to 10 mph.

Severe Weather Alert Descriptions

 Flood Warning  Statement as of 9:03 PM CDT on July 6, 2015


The Flood Warning continues for
the Mississippi River at St. Louis.
* At 8:30 PM Monday the stage was 34.2 feet.
* Flood stage is 30.0 feet.
* Minor flooding is occurring.
* Forecast: the river will fall below flood stage by next Monday afternoon.

                   Fld latest 7 a.M. Forecast
location stg obs stg 07/07 07/08 07/09 07/10 07/11

Mississippi River
St. Louis 30.0 34.23 33.1 30.6 29.0 29.5 31.5




Lat... Lon 3881 9017 3883 9004 3826 9030 3826 9043
      3873 9024







 Flash Flood Watch  Statement as of 3:54 PM CDT on July 6, 2015


... Flash Flood Watch remains in effect from 7 PM CDT this evening
through Wednesday evening...

The Flash Flood Watch continues for

* portions of Illinois and Missouri... including the following
counties... in Illinois... Adams IL... Brown IL... Calhoun IL...
Greene IL... Jersey IL... Macoupin IL... Madison IL... Monroe IL...
Pike IL and St. Clair IL. In Missouri... Audrain MO... Boone
MO... Callaway MO... Cole MO... Crawford MO... Franklin MO...
Gasconade MO... Jefferson MO... Knox MO... Lewis MO... Lincoln
MO... Marion MO... Moniteau MO... Monroe MO... Montgomery MO...
Osage MO... Pike MO... Ralls MO... Shelby MO... St. Charles MO...
St. Louis city MO... St. Louis MO... Warren MO and Washington MO.

* From 7 PM CDT this evening through Wednesday evening

* several rounds of thunderstorms will bring heavy rainfall and
the potential of flash flooding to the region tonight through
Wednesday. Widespread two day rainfall totals of 2 to 4
inches are likely... with localized amounts exceeding 5
inches.

* Heavy rainfall will result in flooding of low lying or poor
drainage areas... and ultimately dangerous flash flooding on
smaller creeks and streams. Significant rises on larger
streams and rivers will also be possible.

Precautionary/preparedness actions...

A Flash Flood Watch means that flash flooding is possible but not
imminent in the watch area. People in the watch area should be
aware of the possibility of heavy rainfall and flash flooding.
Check your preparedness requirements... especially if you live in
flood prone areas. Stay informed... and be ready for quick action
if flooding is observed or if a Flash Flood Warning is issued.



Glass




Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Soulard, Saint Louis, MO

Updated: 11:30 PM CDT

Temperature: 77.9 °F Dew Point: 74 °F Humidity: 87% Wind: Calm Pressure: 29.56 in Hourly Precipitation: - Heat Index: 80 °F Graphs

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

Updated: 11:31 PM CDT

Temperature: 78.3 °F Dew Point: 76 °F Humidity: 92% Wind: South at 1.1 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: ACW Alliance at BJC Washington University Campus, Saint Louis, MO

Updated: 11:34 PM CDT

Temperature: 78.9 °F Dew Point: 74 °F Humidity: 86% Wind: ENE at 12.1 mph Pressure: 29.22 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Milam Landfill, East Saint Louis, IL

Updated: 11:26 PM CDT

Temperature: 78.5 °F Dew Point: 75 °F Humidity: 89% Wind: South at 3.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Holly Hills, Saint Louis, MO

Updated: 11:34 PM CDT

Temperature: 78.6 °F Dew Point: 76 °F Humidity: 91% Wind: Calm Pressure: 29.11 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: EAST GRANITE, Granite City, IL

Updated: 11:22 PM CDT

Temperature: 79.0 °F Dew Point: 74 °F Humidity: 84% Wind: South at 3.2 mph Pressure: 29.83 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: Franz Park, St. Louis, MO

Updated: 11:31 PM CDT

Temperature: 78.6 °F Dew Point: 77 °F Humidity: 94% Wind: North at - Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Carondelet Park, Saint Louis, MO

Updated: 11:34 PM CDT

Temperature: 78.5 °F Dew Point: 74 °F Humidity: 86% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: 27th Street, Granite City, IL

Updated: 11:32 PM CDT

Temperature: 79.5 °F Dew Point: 75 °F Humidity: 87% Wind: North at - Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Boulevard Heights, St. Louis, MO

Updated: 11:32 PM CDT

Temperature: 77.7 °F Dew Point: 77 °F Humidity: 99% Wind: North at - Pressure: 29.97 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Lindenwood Park, Saint Louis, MO

Updated: 11:32 PM CDT

Temperature: 80.1 °F Dew Point: 76 °F Humidity: 86% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Lindenwood Park, Saint Louis, MO

Updated: 11:32 PM CDT

Temperature: 78.4 °F Dew Point: 78 °F Humidity: 98% Wind: North at - Pressure: 29.86 in Hourly Precipitation: - Heat Index: 82 °F Graphs

Location: MesoWest, Granite City, IL

Updated: 7:55 PM CDT

Temperature: 79 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Morehouse Lane, University City, MO

Updated: 11:31 PM CDT

Temperature: 78.1 °F Dew Point: 74 °F Humidity: 88% Wind: North at - Pressure: 29.98 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: www.seedgeeks.com, Brentwood, MO

Updated: 11:28 PM CDT

Temperature: 79.3 °F Dew Point: 73 °F Humidity: 82% Wind: Calm Pressure: 29.84 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: South County, Affton, MO

Updated: 11:35 PM CDT

Temperature: 79.1 °F Dew Point: 76 °F Humidity: 89% Wind: South at 5.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Raritan Drive, Webster Groves, MO

Updated: 11:32 PM CDT

Temperature: 79.2 °F Dew Point: 76 °F Humidity: 89% Wind: North at - Pressure: 29.95 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: East Jackson Road, Webster Groves, MO

Updated: 11:32 PM CDT

Temperature: 78.6 °F Dew Point: 76 °F Humidity: 90% Wind: North at - Pressure: 29.97 in Hourly Precipitation: - Heat Index: 82 °F Graphs

Location: BUCKLEY MEADOWS 4, Saint Louis, MO

Updated: 11:28 PM CDT

Temperature: 79.0 °F Dew Point: 76 °F Humidity: 91% Wind: WSW at 4.2 mph Pressure: 29.66 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: West End, Belleville, IL

Updated: 11:34 PM CDT

Temperature: 78.3 °F Dew Point: 61 °F Humidity: 74% Wind: SSW at 5.0 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Millstadt, Millstadt, IL

Updated: 11:35 PM CDT

Temperature: 76.8 °F Dew Point: 69 °F Humidity: 76% Wind: SSE at 8.1 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Collinsville West, Collinsville, IL

Updated: 11:34 PM CDT

Temperature: 78.1 °F Dew Point: 75 °F Humidity: 89% Wind: SE at 4.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 81 °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 
710 PM CDT Monday Jul 6 2015 


Short term: (through late tonight) 
issued at 320 PM CDT Monday Jul 6 2015 


Tranquil weather has come to an end. Heating of the very moist 
air mass has produced SBCAPE of 3000-4000 j/kg which along with a 
weak upper disturbance tracking into eastern MO has generated 
scattered thunderstorms across the southeast half of the County Warning Area. Precipitable waters  
of 1.6-1.8 inches is resulting in heavy downpours with storms, 
and presence of sufficiently steep low level lapse rates and 
precipip loading is also aiding in prominent outflows and gusty 
surface winds. Some of this activity will linger into the early 
evening primarily from St. Louis east, but the main show will be a 
growing extensive band of showers and thundestorms currently 
extending from northwest MO into eastern Kansas. This activity will 
move east and sink south with time tonight. The greatest threat of 
heavy rain will be centered in northeast MO and west central Illinois 
trailing into central MO and mainly this evening. The current 
Flash Flood Watch has this well covered. The severe weather 
threat will occupy the same general region and time space and will 
largely be driven by the aforementioned instability with marginal 
deep layer shear supporting a multicell Mode and wind damage 
threat. 


Glass 


Long term: (tuesday through next monday) 
issued at 320 PM CDT Monday Jul 6 2015 


The scenario has changed little Tuesday into Wednesday with the 
front gradually moving southward and becoming stationary across 
southern Illinois and southeast Missouri by Tuesday evening, and 
then wavering back north late Tuesday night-Wednesday with the 
movement and passage of a surface low migrating along the front. 
Broad deep low level convergence attendant with the frontal zone 
along with ample instability and abundant moisture /pws in excess 
of 2 inches/ support the forecast of widespread showers and 
thundestorms with a heavy rainfall threat. The current Flash Flood 
Watch covers this period with multiday rainfall totals of 2-4 
inches expected and locally higher totals. Ultimately the watch 
may need to be extended into Wednesday night-Thursday night period 
with another and the final surface wave moving along the front. 


The front finally pushes north of the area by early Friday putting 
an end to the precipitation for several days. Summer heat and humidity 
is on tap for next weekend as heights rise aloft and a prominent 
upper ridge builds through the nations midsection. 


Glass 
&& 


Aviation: (for the 00z tafs through 00z Tuesday evening) 
issued at 702 PM CDT Monday Jul 6 2015 


Storms that developed out ahead of front have dissipated, so will 
see a brief break in activity. KUIN and kcou should see showers 
and storms move in after 01z-02z timeframe, while it will not make 
it to stl metropolitan area until after 06z Tuesday. Once storms move in 
will see MVFR conditions with tempo IFR conditions until cold front 
moves through. Then MVFR conditions to persist behind boundary 
through rest of forecast period with rain tapering off by middle 
morning on Tuesday. As for winds, south to southwest winds to veer 
to the west after frontal passage, then to the north to northeast 
later in the forecast period. 


Specifics for kstl: 
storms that developed out ahead of front have dissipated, so will 
see a break in activity. Showers and storms will not make it to 
stl metropolitan area until after 06z Tuesday. Once storms move in will see 
MVFR conditions with tempo IFR conditions until cold front moves 
through around 12z Tuesday. Then MVFR conditions to persist 
behind boundary through rest of forecast period with rain tapering 
off by 20z Tuesday. Did put in thunderstorms in the vicinity/vcsh mention after 20z Tuesday 
as frontal boundary will stall out along I-70 corridor. As for 
winds, south to southwest winds to veer to the west after frontal 
passage, then to the northwest later in the forecast period. 


Byrd 
&& 


Lsx watches/warnings/advisories: 
MO...Flash Flood Watch through Wednesday evening for Audrain MO-Boone 
MO-Callaway MO-Cole MO-Crawford MO-Franklin MO-Gasconade MO- 
Jefferson MO-Knox MO-Lewis MO-Lincoln MO-Marion MO-Moniteau 
MO-Monroe MO-Montgomery MO-Osage MO-Pike MO-Ralls MO-Shelby 
MO-St. Charles MO-St. Louis city MO-St. Louis MO-Warren MO- 
Washington MO. 


Illinois...Flash Flood Watch through Wednesday evening for Adams Illinois-Brown 
Illinois-Calhoun Illinois-Greene Illinois-Jersey Illinois-Macoupin Illinois-Madison Illinois- 
Monroe Illinois-Pike IL-St. Clair Illinois. 


&& 


$$ 
Weather forecast office lsx 






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