St Louis Weather Conditions & Forecast, February 12, 2018

St Louis Weather Conditions & Forecast, February 12, 2018

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

ST LOUIS, MO/February 12, 2018 (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

Temperature: 17°F – -8°C
Humidity: 92%
Wind Speed: NW 7 mph
Barometer: 30.52 in (1035.0 MB)
Dew-point: 15°F – -9°C
Visibility: 10 Miles
Wind Chill: 7°F – -14°C
Heat Index: N/A°F – N/A°C

Extended Weather Forecast for the St Louis, Missouri area beginning February 12, 2018

Today: Sunny – high near 37 with NE wind 5 to 10 mph.
Tonight: Mostly clear – low around 21 with east wind 5 to 8 mph.
Tuesday: Mostly sunny – high near 46 with east wind around 6 mph becoming south in the pm.
Tuesday Night: 30% chance of showers after midnight, mostly cloudy – low around 36 with south wind 5 to 7 mph.
Wednesday: 30% chance of showers in the am, mostly cloudy – high near 62 with south wind 8 to 14 mph gusting as high as 21 mph.
Wednesday Night: 20% chance of rain after midnight, mostly cloudy – low around 51.
Thursday: Chance of rain in the pm, cloudy – high near 66 with a chance of precipitation – 70%.
Thursday Night: Rain likely before 3 am followed by a chance of rain/snow between 3 am and 5 am followed by a chance of snow after 5 am, cloudy – low around 31 with a chance of precipitation – 60%.
Friday: Chance of rain/snow between 9 am and noon, partly sunny – high near 36 with a chance of precipitation – 40%.
Friday Night: Partly cloudy – low around 21.
Saturday: Sunny – high near 45.
Saturday Night: Mostly clear – low around 30.
Sunday: Mostly sunny – high near 53.

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

Delayed Air Quality Index: 02/12/18 12:00 AM CST

  • Good – 25 AQI – Particle Pollution (2.5 microns)
  • Good – 18 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


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