St. Louis Weather Conditions and Forecast, November 12, 2017

St. Louis Weather Conditions and Forecast, November 12, 2017

St. Louis Weather Conditions and Forecast, November 12, 2017
St. Louis Weather Conditions and Forecast, November 12, 2017 (Picture licensed to St. Louis Media, LLC d.b.a. STL.News by

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

ST. LOUIS, MO/November 12, 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 Weather Conditions

Temperature: 43°F – 6°C
Humidity: 89%
Wind Speed: SE 6 mph
Barometer: 30.23 in (1024.1 MB)
Dew-point: 40°F – 4°C
Visibility: 10 Miles
Wind Chill: 39°F – 4°C
Heat Index: N/A°F – N/A°C

Extended Weather Forecast for the St. Louis, Missouri area beginning November 12, 2017

Overnight: Chance of rain, cloudy – low around 41 with light south wind, chance of precipitation – 60%.
Sunday: Chance of drizzle before 10 am, cloudy – high near 47 with calm wind becoming northwest 5 to 7 mph in the morning.
Sunday Night: Patchy fog after 2 am, partly cloudy – low around 33 with north wind around 6 mph becoming calm after midnight.
Monday: Patchy fog before 9 am, mostly sunny – high near 53 with light and variable wind.
Monday Night: Partly cloudy – low around 36 with southeast wind 3 to 5 mph.
Tuesday: Mostly sunny – high near 55.
Tuesday Night: Chance of showers and possibly a thunderstorm after midnight – low around 48 with a chance of precipitation – 80%.
Wednesday: Showers and possibly a thunderstorm in the a.m. – high near 58 with chance of precipitation – 90%.
Wednesday Night: Partly cloudy – low around 37.
Thursday: 20 percent chance of showers in the p.m., partly sunny – high near 55.
Thursday Night: 50 percent chance of showers/thunderstorms, mostly cloudy – low around 47.
Friday: Showers/thunderstorms likely, mostly cloudy – high near 63 with a chance of precipitation – 60%.
Friday Night: 40 percent chance of showers, partly cloudy – low around 42.
Saturday: Sunny – high near 54.

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

Delayed Air Quality Index: 11/11/17 7:00 PM CST

  • Good – 30 AQI – Particle Pollution (2.5 microns)
  • Good – 18 AQI – Ozone
  • Good – 15 AQI – Particle Pollution (10 microns)

Agency: St. Louis Metropolitan Area (American Lung Association) – Last Update: Sat, 11 Nov 2017 08:15:09 CST

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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