Saint Louis, Missouri
Current Conditions
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Almanac
Average High: 51°
Average Low: 35°
Record high/year: 75° (1990)
Record low/year: 11° (1964)
Sunrise: 6:49 AM
Sunset: 4:43 PM
Detailed History
Sun and Moon
Sunrise: 06:49 AM (CST)
Moon Rise: 10:56 AM (CST) 11 21
Sunset: 04:43 PM (CST)
Moon Set: 08:57 PM (CST) 11 21
Moon Phase
Air Pollution
Air Pollution Forecast for Saint Louis
| Current | Air Quality: Good | Pollutant: PM2.5 |
| Current | Air Quality: Good | Pollutant: OZONE |
| Sat | Air Quality: Good | Pollutant: PM2.5 |
| Sun | Air Quality: Good | Pollutant: PM2.5 |
Next 12 Hours
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Forecast data from the National Digital Forecast Database
5-Day Forecast
Hi 63°
Lo 43°
Partly Cloudy
Hi 61°
Lo 45°
Partly Cloudy
Hi 54°
Lo 40°
Rain
Hi 47°
Lo 34°
Partly Cloudy
Hi 47°
Lo 32°
Partly Cloudy
Forecast for St. Louis City
Tonight
Partly cloudy. Low in the mid 40s. Light wind.
Sunday
Mostly sunny. High in the lower 60s. Light wind in the morning becoming east around 10 mph in the afternoon.
Sunday Night
Partly cloudy. Low in the mid 40s. Light wind.
Monday
Partly sunny. High around 60. Light wind.
Monday Night
Partly cloudy in the evening then becoming mostly cloudy. A 30 percent chance of rain. Low in the mid 40s. South wind around 10 mph.
Tuesday
Rain likely. High in the lower 50s. Chance of rain 60 percent.
Tuesday Night
Mostly cloudy. Low around 40.
Wednesday
Mostly cloudy. High in the upper 40s.
Wednesday Night
Partly cloudy. Low in the mid 30s.
Thanksgiving Day
Mostly cloudy. High in the mid 40s.
Thursday Night
Partly cloudy. Low in the mid 30s.
Friday through Saturday
Mostly clear. High in the lower 50s. Low in the upper 30s.
Personal Weather Stations
Personal Weather Stations [Add your weather station!]
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Location: Shaw/Tower Grove, St. Louis, MO Updated: 7:11 PM CST |
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| Temperature: 58.1 °F | Dew Point: 45 °F | Humidity: 62% | Wind: Calm | Pressure: 29.62 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS MALINE CK AT BELLEFONTAINE ROAD MO US USGS, Saint Louis, MO Updated: 6:15 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS DEER CREEK AT BIG BEND DRIVE AT MO US USGS, Saint Louis, MO Updated: 6:00 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS RIVER DES PERES NEAR UNIVERSITY MO US USGS, Saint Louis, MO Updated: 6:00 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS BLACK CREEK AT BRENTWOOD MO US USGS, Saint Louis, MO Updated: 6:30 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: South County, Affton, MO Updated: 7:12 PM CST |
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| Temperature: 56.0 °F | Dew Point: 45 °F | Humidity: 66% | Wind: Calm | Pressure: 30.04 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Radiom Dr, Affton, MO Updated: 7:12 PM CST |
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| Temperature: 54.0 °F | Dew Point: 40 °F | Humidity: 59% | Wind: Calm | Pressure: 30.00 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Fairview Heights, IL Updated: 7:11 PM CST |
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| Temperature: 57.2 °F | Dew Point: 31 °F | Humidity: 37% | Wind: ESE at 2.0 mph | Pressure: 30.03 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: West End, Belleville, IL Updated: 8:12 PM EST |
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| Temperature: 51.3 °F | Dew Point: 22 °F | Humidity: 31% | Wind: NE at 4.0 mph | Pressure: 29.56 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS MARTIGNEY CK AT SUNRISE HEIGHTS MO US USGS, Saint Louis, MO Updated: 6:00 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: APRSWXNET Olivette MO US, Saint Louis, MO Updated: 6:49 PM CST |
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| Temperature: 58 °F | Dew Point: 44 °F | Humidity: 59% | Wind: Calm | Pressure: 30.10 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Quiet Village, Creve Coeur, MO Updated: 7:12 PM CST |
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| Temperature: 52.2 °F | Dew Point: 41 °F | Humidity: 65% | Wind: Calm | Pressure: 30.09 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Cardinal Creek Subdivision, Oakville, MO Updated: 7:10 PM CST |
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| Temperature: 54.7 °F | Dew Point: 46 °F | Humidity: 72% | Wind: Calm | Pressure: 30.07 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Des Peres, MO Updated: 7:12 PM CST |
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| Temperature: 54.6 °F | Dew Point: 43 °F | Humidity: 65% | Wind: ESE at 1.3 mph | Pressure: 30.06 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS MERAMEC RIVER AT ARNOLD MO US USARMY-COE, Saint Louis, MO Updated: 5:45 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Maryville, IL Updated: 7:12 PM CST |
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| Temperature: 57.0 °F | Dew Point: 46 °F | Humidity: 66% | Wind: North at 4.0 mph | Pressure: 30.14 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Creve Coeur, St. Louis, MO Updated: 7:11 PM CST |
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| Temperature: 54.7 °F | Dew Point: 38 °F | Humidity: 53% | Wind: Calm | Pressure: 29.53 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS FENTON CREEK AT HWY 141 NEAR FEN MO US USGS, Fenton, MO Updated: 6:00 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Belleville, IL Updated: 7:12 PM CST |
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| Temperature: 53.9 °F | Dew Point: 46 °F | Humidity: 75% | Wind: East at 1.0 mph | Pressure: 30.07 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Winter Valley Subdivison, Fenton, MO Updated: 7:12 PM CST |
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| Temperature: 58.0 °F | Dew Point: 47 °F | Humidity: 66% | Wind: Calm | Pressure: 30.04 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Old Farm Estates, St. Louis, MO Updated: 7:12 PM CST |
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| Temperature: 57.8 °F | Dew Point: 45 °F | Humidity: 63% | Wind: SE at 3.0 mph | Pressure: 30.13 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: MesoWest Warnock IL US UPR, Columbia, IL Updated: 6:25 PM CST |
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| Temperature: 59 °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Chesterfield (East), Chesterfield, MO Updated: 3:14 PM CST |
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| Temperature: 64.0 °F | Dew Point: 47 °F | Humidity: 54% | Wind: SSE at 4.0 mph | Pressure: 30.07 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS MERAMEC RIVER AT VALLEY PARK MO US USARMY-COE, Valley Park, MO Updated: 5:45 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Downtown, Edwardsville, IL Updated: 7:12 PM CST |
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| Temperature: 55.0 °F | Dew Point: 46 °F | Humidity: 70% | Wind: Calm | Pressure: 30.12 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Arnold, MO Updated: 7:12 PM CST |
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| Temperature: 53.7 °F | Dew Point: 45 °F | Humidity: 73% | Wind: Calm | Pressure: 30.08 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Hawkins/Smizer Mill, Fenton, MO Updated: 7:12 PM CST |
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| Temperature: 54.7 °F | Dew Point: 46 °F | Humidity: 72% | Wind: SE at 1.0 mph | Pressure: 30.07 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS CREVE COEUR CREEK AT CHESTERFIEL MO US USGS, Chesterfield, MO Updated: 6:00 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Creve Coeur Airport, Maryland Heights, MO Updated: 7:09 PM CST |
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| Temperature: 54.0 °F | Dew Point: 50 °F | Humidity: 86% | Wind: West at 1.0 mph | Pressure: 30.07 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Ballwin/Manchester, Ballwin, MO Updated: 7:12 PM CST |
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| Temperature: 54.2 °F | Dew Point: 46 °F | Humidity: 75% | Wind: Calm | Pressure: 30.17 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Rosewood Heights, East Alton, IL Updated: 7:10 PM CST |
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| Temperature: 57.6 °F | Dew Point: 45 °F | Humidity: 63% | Wind: South at 1.0 mph | Pressure: 30.09 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: HADS MISSOURI RIVER AT ST CHARLES MO US USARMY-COE, Saint Charles, MO Updated: 6:00 PM CST |
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| Temperature: °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: Faust Park, Chesterfield, MO Updated: 7:11 PM CST |
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| Temperature: 57.6 °F | Dew Point: 33 °F | Humidity: 39% | Wind: ESE at 2.0 mph | Pressure: 30.24 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: APRSWXNET Manchester MO US, Chesterfield, MO Updated: 6:52 PM CST |
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| Temperature: 56 °F | Dew Point: 44 °F | Humidity: 63% | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Historical Graphs | |
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Location: San Luis Trails, Fenton, MO Updated: 7:12 PM CST |
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| Temperature: 56.7 °F | Dew Point: 42 °F | Humidity: 58% | Wind: Calm | Pressure: 30.06 in | Hourly Precipitation: 0.00 in | Historical Graphs | |
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MSN Maps of: |
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NWS Forecaster Discussion
100 fxus63 klsx 212306 afdlsx Area forecast discussion...updated aviation National Weather Service St Louis MO 506 PM CST Sat Nov 21 2009 Discussion... /330 PM CST Sat Nov 21 2009/ Rather benign weather is expected across the region through Monday with weak surface ridging dominating and nuetral to weak warm air advection forecast. The upper low currently in vicinity of extreme eastern Texas is forecast to remain well south of the area as it moves eastward into the lower Tennessee Valley on Sunday in response to the upstream kicker shortwv moving through the Great Basin at this time. With little real overall change in the air mass...temperatures will to a degree be dependent on the amount of clouds. Making this a little more challenging is the fact the model relative humidity fields have been rather poor over the last few days in depicting the clouds. I think for the most part the clouds tonight will decrease and move north-northeastward and the greatest cloud cover on Sunday will reside in the western portion of MO touching portions of central and NE MO as well. The forecast temperature are a blend of persistence and the warmer side of the MOS guidance suite. The main emphasis this forecast period will be on the middle/upper low forecast to develop in the northern rockies on Sunday night and move into the middle MS valley on Tuesday. There is some spread on the low position by 00z Wednesday...but it is not exceedingly great. A consensus position would be in vicinity of southeast Iowa...with the low exiting into the lower Great Lakes by Wednesday morning in response to the next digging upstream shortwv trough/upper low. In terms of sensible weather...will need to keep an eye on a lead impulse moving through the area on Sunday night/early Monday...which has a very low chance of bringing a sprinkle or light shower to far northern sections. Otherwise precipitation chances will ramp up Monday night into Tuesday with the strong middle/upper low-trof. Low level moisture will be rather dismal ahead of this feature and the attendant cold front...however large scale ascent will be quite robust along with plentiful middle level moisture...supportive of a band of rain with cloud bases in the middle levels. Accordingly I have boosted probability of precipitation in the western County Warning Area on Monday night...and in the eastern County Warning Area on Tuesday. Some good cold air advection will occur in the wake of the front along with probably a decent amount of stratus. A chilly period with below average temperatures is expected Wednesday into Thursday with the aforementioned secondary shortwave trough/upper low digging into the region and bring a colder reinforcing shot of cold air. There had been some differences in the extended range models with respect to this scenario...but with the new 12z European model (ecmwf) run...they have all come onboard. Expecting moderation of the temperatures to above normal next weekend as the trough begins exiting the eastern Seaboard and heights rise aloft. Glass && Aviation... /455 PM CST Sat Nov 21 2009/ For the 00z tafs...little if any changes to the previous taf forecasts. Clouds currently over taf sites will continue to move northward and break up during the evening hours. With clear skies overnight...expect light fog to develop and persist through middle morning hours. Am a little uncertain as to exactly when fog will become MVFR...but have pushed it back a couple of hours as clouds persist over the area. If clouds fail to break up...fog development may not occur until much later...near 12z. Otherwise...Sunday should be sky clear with light southeast to east-southeast winds. Tilly && Lsx watches/warnings/advisories... MO...none. Illinois...none. && $$ Weather forecast office lsx