St Louis Weather Conditions and Forecast, December 11, 2017

St Louis Weather Conditions and Forecast, December 11, 2017

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

ST LOUIS, MO/December 11, 2017 (AP)(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.).

WARNING: Hazardous Weather Outlook

Current Weather Conditions

Temperature: 30°F – -1°C
Humidity: 82%
Wind Speed: CALM
Barometer: 30.07 in (1018.17 MB)
Dew-point: 25°F – -4°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 11, 2017

Today: Mostly sunny – high near 58 with south wind 5 to 18 pm gusting as high as 29 mph.
Tonight: Cloudy – becoming partly cloudy – low around 27 with northwest wind 11 to 13 mph gusting as high as 28 mph.
Tuesday: Sunny – high near 36 with northwest wind 8 to 10 mph.
Tuesday Night: Mostly clear – low around 26 with northwest wind 3 to 7 mph.
Wednesday: Mostly sunny – high near 47 with south wind 3 to 7 mph.
Wednesday Night: Partly cloudy – low around 29.
Thursday: Mostly cloudy – high near 40.
Thursday Night: Mostly cloudy – low around 26.
Friday: Mostly sunny – high near 44.
Friday Night: Partly cloudy – low around 35.
Saturday: Mostly sunny – high near 56.
Saturday Night: Partly cloudy – low around 36.
Sunday: Mostly sunny – high near 50.

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

Delayed Air Quality Index: 12/10/17 5:00 PM CST

  • Good – 29 AQI – Particle Pollution (2.5 microns)
  • Good – 28 AQI – Ozone
  • Good – 12 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 – (MS)


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