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

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

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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