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


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