Saint Louis, Missouri Weather Conditions

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Current Conditions

  • 83°
  • Mostly Cloudy
  • Wind: SSE 8 mph
  • Humidity: 58%
  • Visibility: 10.0 miles
  • Dew Point: 67°
  • Pressure: 29.96 in. 0
  • Heat Index: 85

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Chance of a Thunderstorm
Chance of T-storms
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
83°
77°
75°
74°
73°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Chance of a Thunderstorm
  • High: 87 °
  • Low: 71 °
  • Chance of T-Storms
  • Monday
  • Partly Cloudy
  • High: 91 °
  • Low: 72 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 93 °
  • Low: 72 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 94 °
  • Low: 71 °
  • Clear
  • Thursday
  • Clear
  • High: 95 °
  • Low: 72 °
  • Clear

Forecast for Saint Louis, Missouri

Updated: 4:00 PM CDT on January 29, 2015

  • Saturday

    Partly cloudy, chance of a thunderstorm. Lows overnight in the low 70s.

  • Saturday Night

    Overcast with a slight chance of showers and thunderstorms, mainly this evening. Low 71F. Winds S at 5 to 10 mph. Chance of rain 30%.

  • Sunday

    Scattered thunderstorms developing during the afternoon. High 87F. Winds SSW at 5 to 10 mph. Chance of rain 40%.

  • Sunday Night

    A few clouds. A stray shower or thunderstorm is possible. Low 71F. Winds light and variable.

  • Monday

    Intervals of clouds and sunshine. High 91F. Winds S at 5 to 10 mph.

  • Monday Night

    Partly cloudy skies. Low 72F. Winds SSE at 5 to 10 mph.

  • Tuesday

    Sunshine and clouds mixed. High 93F. Winds S at 5 to 10 mph.

  • Tuesday Night

    Clear to partly cloudy. Low 72F. Winds SSE at 5 to 10 mph.

  • Wednesday

    Sunshine and some clouds. High 94F. Winds S at 5 to 10 mph.

  • Wednesday Night

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

  • Thursday

    Plentiful sunshine. High near 95F. Winds S at 5 to 10 mph.

  • Thursday Night

    Clear skies. Low 72F. Winds SE at 5 to 10 mph.

  • Friday

    Plentiful sunshine. High 94F. Winds SE at 5 to 10 mph.

  • Friday Night

    A mostly clear sky. Low 71F. Winds ESE at 5 to 10 mph.

  • Saturday

    Sunshine. High 93F. Winds E at 5 to 10 mph.

  • Saturday Night

    Mostly clear skies. Low around 70F. Winds E at 5 to 10 mph.

  • Sunday

    Generally sunny despite a few afternoon clouds. High 93F. Winds NE at 5 to 10 mph.

  • Sunday Night

    Partly cloudy with late night showers or thunderstorms. Low 71F. Winds E at 5 to 10 mph. Chance of rain 40%.

  • Monday

    Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 89F. Winds WNW at 5 to 10 mph.

  • Monday Night

    Variable clouds with thunderstorms, especially during the evening. Low 71F. Winds N at 5 to 10 mph. Chance of rain 60%.

  • Tuesday

    A shower or two possible early with partly cloudy skies in the afternoon. High 83F. Winds NNW at 10 to 15 mph. Chance of rain 40%.

  • Tuesday Night

    Scattered thunderstorms, especially overnight. Low 67F. Winds NNE at 5 to 10 mph. Chance of rain 40%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Downtown West, Saint Louis, MO

Updated: 6:20 PM CDT

Temperature: 77.7 °F Dew Point: 69 °F Humidity: 74% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Soulard, Saint Louis, MO

Updated: 6:23 PM CDT

Temperature: 85.1 °F Dew Point: 70 °F Humidity: 60% Wind: Calm Pressure: 29.64 in Hourly Precipitation: - Heat Index: 89 °F Graphs

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

Updated: 6:26 PM CDT

Temperature: 83.3 °F Dew Point: 69 °F Humidity: 62% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Holly Hills, Saint Louis, MO

Updated: 6:28 PM CDT

Temperature: 82.8 °F Dew Point: 69 °F Humidity: 63% Wind: Calm Pressure: 29.20 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: EAST GRANITE, Granite City, IL

Updated: 6:22 PM CDT

Temperature: 81.7 °F Dew Point: 71 °F Humidity: 71% Wind: ESE at 1.1 mph Pressure: 29.92 in Hourly Precipitation: - Heat Index: 86 °F Graphs

Location: Franz Park, St. Louis, MO

Updated: 6:20 PM CDT

Temperature: 81.9 °F Dew Point: 72 °F Humidity: 71% Wind: North at - Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Carondelet Park, Saint Louis, MO

Updated: 6:28 PM CDT

Temperature: 80.7 °F Dew Point: 68 °F Humidity: 65% Wind: ESE at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Holly Hills, St Louis, MO

Updated: 6:28 PM CDT

Temperature: 82.8 °F Dew Point: 55 °F Humidity: 39% Wind: Calm Pressure: 29.44 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: 27th Street, Granite City, IL

Updated: 6:20 PM CDT

Temperature: 80.1 °F Dew Point: 70 °F Humidity: 70% Wind: North at - Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Boulevard Heights, St. Louis, MO

Updated: 6:20 PM CDT

Temperature: 86.4 °F Dew Point: 71 °F Humidity: 60% Wind: North at - Pressure: 30.06 in Hourly Precipitation: - Heat Index: 92 °F Graphs

Location: Lindenwood Park, Saint Louis, MO

Updated: 6:20 PM CDT

Temperature: 82.0 °F Dew Point: 68 °F Humidity: 63% Wind: North at - Pressure: 30.03 in Hourly Precipitation: - Heat Index: 85 °F Graphs

Location: Lindenwood Park, Saint Louis, MO

Updated: 6:20 PM CDT

Temperature: 80.4 °F Dew Point: 72 °F Humidity: 74% Wind: North at - Pressure: 29.95 in Hourly Precipitation: - Heat Index: 84 °F Graphs

Location: Morehouse Lane, University City, MO

Updated: 6:20 PM CDT

Temperature: 77.2 °F Dew Point: 69 °F Humidity: 76% Wind: North at - Pressure: 30.07 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: South County, Affton, MO

Updated: 6:24 PM CDT

Temperature: 79.8 °F Dew Point: 69 °F Humidity: 70% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Webster Groves, Webster Groves, MO

Updated: 6:25 PM CDT

Temperature: 79.9 °F Dew Point: 35 °F Humidity: 20% Wind: East at 4.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Raritan Drive, Webster Groves, MO

Updated: 6:20 PM CDT

Temperature: 79.7 °F Dew Point: 71 °F Humidity: 74% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: East Jackson Road, Webster Groves, MO

Updated: 6:20 PM CDT

Temperature: 80.1 °F Dew Point: 70 °F Humidity: 72% Wind: North at - Pressure: 30.05 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: New Goose, Fairview Heights, IL

Updated: 6:28 PM CDT

Temperature: 80.1 °F Dew Point: 70 °F Humidity: 71% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: West End, Belleville, IL

Updated: 6:28 PM CDT

Temperature: 79.2 °F Dew Point: 45 °F Humidity: 48% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Millstadt, Millstadt, IL

Updated: 6:28 PM CDT

Temperature: 78.4 °F Dew Point: 55 °F Humidity: 45% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: APRSWXNET, Woodson Terrace, MO

Updated: 4:46 PM CDT

Temperature: 82 °F Dew Point: 67 °F Humidity: 61% Wind: SE at 1 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 85 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
339 PM CDT Sat Aug 29 2015 


Short term: (through late tonight) 
issued at 333 PM CDT Sat Aug 29 2015 


Showers have moved out of the County Warning Area for the moment as water vapor 
imagery is currently showing that a weak upper low is moving east 
across southeast Missouri. There is also a shortwave trough 
extending from the Great Lakes into far northeast Missouri and 
a vorticity maximum over southwest Missouri that is moving eastward. The 
rap shows some weak ascent along the trough axis as it moves east 
southeast this evening across northeast Missouri and west central 
Illinois while there is also some increased ascent across areas 
south of I-70 associated with the vorticity maximum. In addition...the rap 
is showing some increase in low level moisture convergence 
associated with the vorticity maximum. Will go with a chance of showers and 
thunderstorms over the southeastern half of the County Warning Area this 
evening...with lessening chances overnight as the moisture 
convergence weakens and moves off to the east. 


Britt 


Long term: (sunday through next saturday) 
issued at 333 PM CDT Sat Aug 29 2015 


(sunday through tuesday) 


The upper level trough axis will be slow to move out of the area as 
an upper level ridge builds over it across the upper Midwest on 
Sunday and Monday. This will keep the upper level trough over the 
area at least through Sunday which will supply some lift over the 
area through the day. Runs of the cams suggest that convective 
coverage will be scattered during the day so have upped probability of precipitation to 30 
percent in most areas. GFS and NAM begin to become more uncertain 
on location of trough axis by Monday...so went with dry forecast 
though it is possible that the trough axis could well end up in 
southern Missouri and bring the southern County Warning Area a slight chance of 
thunderstorms. Will also keep Tuesday dry for now...though the NAM 
would bring a weak shortwave trough across the area during the day 
that may bear watching. 


Went on the warm side of guidance through the period as we will be 
mixing down air from the 800-850mb layer...particularly on Monday 
and Tuesday which has temperatures around +20c which favors 
temperatures going back above normal. 


(Wednesday through next saturday) 


Area will be mainly dry late week into next weekend as upper 
ridge axis that extends from the Central Plains into the upper 
Midwest on Thursday will shift over Missouri and Illinois by 
Saturday. Consequently...surface ridge will linger over Missouri 
and Illinois through the medium range period. Temperatures will be 
at or slightly above normal as we go into the Holiday weekend as 
850mb temperatures remain close to +20c. 


Britt 


&& 


Aviation: (for the 18z tafs through 18z Sunday afternoon) 
issued at 1222 PM CDT Sat Aug 29 2015 


Still expecting widely scattered rain showers/thunderstorms and rain to develop across the region 
this afternoon. With the fnt forecast to washout across the 
area...timing poss MVFR ceilings and extent of cloud cover will be 
difficult. With questions of cloud cover...uncertainty remains 
regarding fog development tonight. Have added MVFR visibilities to 
uin...but slightly lesser chances exist at cou. Southerly to southwesterly winds 
expected again on sun. Low MVFR to possibly IFR ceilings are expected 
again tonight. Exactly where the southeastern edge of this cloud deck will 
be is difficult to determine...but is currently expected to be 
just north/northwest of cou/uin. 


Specifics for kstl: widely scattered thunderstorms and rain still expected this afternoon. 
Otherwise...expect VFR conditions with southerly to southwesterly winds. 


Tilly 


&& 


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


$$ 


Weather forecast office lsx 



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