St Louis Weather Conditions & Forecast, January 7, 2018

St Louis Weather Conditions & Forecast, January 7, 2018

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

ST LOUIS, MO/January 7, 2018 (STL.News) St Louis weather conditions & forecast readings from the St. Louis Lambert International Airport at 6:51 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


Temperature: 23°F – -5°C
Humidity: 44%
Wind Speed: SE 13 mph
Barometer: 30.25 in (1025.9 MB)
Dew-point: 4°F – -16°C
Visibility: 10 Miles
Wind Chill: 11°F – -12°C
Heat Index: N/A°F – N/A°C

Extended Weather Forecast for the St Louis, Missouri area beginning January 7, 2018

Today: Chance of snow/freezing rain/sleet before mid pm followed by freezing rain, mixed with sleet between later afternoon, freezing rain in the late pm – high near 34 with south wind around 11 mph gusting as high as 21 mph with chance of precipitation – 100%.  Total ice accumulation, around a 0.1 of one inch possible with total daytime snow/sleet accumulation of less than 1/2 inch possible.
Tonight: Rain/freezing rain before early am, followed by a chance of rain between 3 am to 5 am – low around 32 with south wind 6 to 11 mph light/variable after midnight with chance of precipitation – 90%.  New ice accumulation expected to be be less than 0.1 inch possible.
Monday: Cloudy gradually becoming sunny – high near 41 with northwest wind 3 to 5 mph.
Monday Night: Partly cloudy – low around 27 with light/variable wind.
Tuesday: Partly sunny – high near 44 with calm wind southeast around 6 mph in the pm.
Tuesday Night: Mostly cloudy – low around 38.
Wednesday: Partly sunny – high near 57.
Wednesday Night: 30 percent chance of rain after midnight, mostly cloudy – low around 48.
Thursday: 40 percent chance of rain, mostly cloudy – high near 53.
Thursday Night: Chance of rain before early pm followed by a chance of snow, mostly cloudy – low around 22 with a chance of precipitation – 30%.
Friday: 30 percent chance of snow, partly sunny – high near 30.
Friday Night: Partly cloudy – low around 19.
Saturday: Partly sunny – high near 31.

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

Delayed Air Quality Index: 01/06/18 3:00 PM CST

  • Moderate – 57 AQI – Particle Pollution (2.5 microns)
  • Good – 30 AQI – Ozone
  • 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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