St Louis Weather Conditions & Forecast, December 27, 2017

St Louis Weather Conditions & Forecast, December 27, 2017

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

ST LOUIS, MO/December 27, 2017 (STL.News) St Louis weather conditions & forecast readings from the St. Louis Lambert International Airport at 4:51 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 Conditions

WEATHER WARNING: Hazardous Weather Outlook

Temperature: 5°F – -15°C
Humidity: 63%
Wind Speed: N 8 mph
Barometer: 30.73 in (1043.1 MB)
Dew-point: -5°F – -21°C
Visibility: 10 Miles
Wind Chill: -8°F – -22°C
Heat Index: N/A°F – N/A°C

Extended Weather Forecast for the St Louis, Missouri area beginning December 27, 2017

Today: Sunny/cold – high near 15 with north wind around 6 mph.
Tonight: Mostly cloudy – low around 7 with east wind around 6 mph.
Thursday: Partly sunny – high near 24 with southeast wind 3 to 6 mph.
Thursday Night: Mostly cloudy – low around 17 with light/variable wind.
Friday: Mostly cloudy – high near 28 with north wind 3 to 5 mph.
Friday Night: Mostly cloudy – low around 12.
Saturday: 30 percent chance of snow before noon, partly sunny and cold – high near 15.
Saturday Night: Mostly cloudy – low around 4.
Sunday: 30 percent chance of snow, mostly cloudy/cold – high near 15.
Sunday Night: Mostly cloudy – low around 3.
New Year’s Day: Mostly sunny/cold – high near 16.
Monday Night: Partly cloudy – low around 5.
Tuesday: Mostly sunny – high near 23.

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

Delayed Air Quality Index: 12/25/17 1:00 PM CST

  • Good – 28 AQI – Ozone
  • Good – 26 AQI – Particle Pollution (2.5 microns)
  • Good – 6 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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