St Louis Weather Conditions and Forecast, December 04, 2017

St Louis Weather Conditions and Forecast, December 04, 2017

St Louis Weather Conditions and Forecast, December 04, 2017
St Louis Weather Conditions and Forecast, December 04, 2017

St Louis Weather Conditions, Forecast & Air Quality Index readings published by STL.News

ST LOUIS, MO/December 04, 2017 (STL.News) St Louis weather conditions & forecast readings from the St. Louis Lambert International Airport at 3:51 a.m at Latitude: 38.75°N, Longitude: 90.37°W – Elevation 604 feet.  Forecast is provided by the National Weather Service (N.W.S.).

Current Weather Conditions

Temperature: 59°F – 15°C
Humidity: 60%
Wind Speed: S 14 Gusting up to 20 mph
Barometer: 29.91 in (1012.5 MB)
Dew-point: 45°F – 7°C
Visibility: 10 Miles
Wind Chill: N/A°F – N/A°C
Heat Index: N/A°F – N/A°C

Extended Weather Forecast for the St Louis, Missouri area beginning December 04, 2017

Today: 40% chance of showers/thunderstorms after 5 pm, mostly cloudy – high near 70, breezy, with a south wind 15 to 21 mph gusting as high as 31 mph.
Tonight: Showers/thunderstorm before 9 pm followed by a chance of showers/thunderstorms between 9 pm and midnight – low around 36.  South wind 14 to 18 mph west in the evening with winds gusting as high as 29 mph with chance of precipitation – 90%.
Tuesday: Mostly sunny – high near 45 with west wind around 15 mph gusting as high as 22 mph.
Tuesday Night: Mostly clear – low around 26 with west wind 7 to 11 mph.
Wednesday: Mostly sunny – high near 41 with west wind 8 to 11 mph.
Wednesday Night: Partly cloudy – low around 25.
Thursday: Mostly sunny – high near 35.
Thursday Night: Mostly cloudy – low around 24.
Friday: A chance of snow before noon, followed by a chance of rain/snow between noon and 5 pm, followed by a chance of snow after 5 pm, partly sunny – high near 36, chance of precipitation – 30%.
Friday Night: 20 percent chance of snow before midnight, mostly cloudy – low around 21.
Saturday: Mostly sunny – high near 37.
Saturday Night: Mostly clear – low around 22.
Sunday: Sunny – high near 47.

Air Quality Index for Saint Louis, Missouri – (A.Q.I.)

Delayed Air Quality Index: 12/03/17 7:00 PM CST

  • Good – 39 AQI – Particle Pollution (2.5 microns)
  • Good – 36 AQI – Ozone
  • Good – 23 AQI – Particle Pollution (10 microns)

Agency: St. Louis Metropolitan Area (American Lung Association)

Air Quality Index (A.Q.I.)

Good – Air quality in considered “satisfactory” and air pollution poses little to no threat.

Moderate – Air quality is considered “acceptable.” However, some pollutants there may be a moderate health concern for a very small number of people who are sensitive to air pollution.

USG – while the general public will not likely be affected by this AQI range, people with lung disease, older adults and children are a great risk from exposure to ozone, whereas, persons with heart and lung disease, old adults and children are at greater risk from the presence of particles in the air.

Unhealthy – Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.

Very Unhealthy – Health Alert: everyone may experience more serious health effects.


Source: Current Weather Conditions and Forecast are obtained from the National Weather Service @ Forecast.Weather.Gov – Air Quality Index (AQI) readings are obtained from AirNow.Gov


WEBSITE PAGES – Previous STL.News Weather ForecastWebsite NavigationCurrent EventsWeather Conditions & Forecast for December 3, 2017Sitemap


Pictures: will be owned by either St. Louis Media, LLC or licensed to St. Louis Media, LLC d.b.a. STL.News by and/or For information about a specific photo please email.

About STL.News 8721 Articles
STL.News is owned and operated by St Louis Media, LLC. We publish International and national through a license agreement with Associated Press (AP). Our local news is provided by local professional writers with a journalism background. Our content is distributed to the major search engines and top-rated social sites. Additionally, we distribute press releases using AP, Google News, Google Newsstand, Bing News, Apple News, and our massive social media network expanding to more than 50 social sites.