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St Louis Weather Conditions and Forecast, November 18, 2017

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

Current Weather Conditions

Temperature: 64°F – 18°C
Humidity: 90%
Wind Speed: S 9 mph
Barometer: 29.41 in (995.5 MB)
Dew-point: 61°F – 16°C
Visibility: 10 Miles
Wind Chill: N/A°F – N/A°C
Heat Index: N/A°F – N/A°C

Extended Weather Forecast for the St Louis, Missouri area beginning November 18, 2017

Overnight: 30% chance of showers, cloudy, with stable temperature around 63 with south wind around 13 mph.
Saturday: Showers/thunderstorms before 3 pm, followed by possibly of showers with temperature rising to near 65 by 8 am, then falling to 43 during the remainder of the day.  Breezy south wind 11 to 16 mph becoming northwest 18 to 23 mph in the am.  Winds gusting as high as 41 mph with chance of precipitation – 90%.
Saturday Night: Mostly clear – low around 30 with northwest wind 9 to 16 mph, with winds gusting as high as 26 mph.
Sunday: Sunny – high near 45 with northwest wind 3 to 8 mph.
Sunday Night: Clear – low around 34 with south wind 3 to 6 mph.
Monday: Sunny – high near 59.
Monday Night: Mostly clear – low around 41.
Tuesday: Mostly sunny – with a high near 56.
Tuesday Night: Mostly clear – low around 29.
Wednesday: Sunny – high near 40.
Wednesday Night: Partly cloudy – low around 28.
Thanksgiving Day: Mostly sunny – high near 48.
Thursday Night: Mostly clear – low around 36.
Friday: Sunny – high near 55.

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

Delayed Air Quality Index: 11/18/17 12:00 AM CST

  • Moderate – 54 AQI – Particle Pollution (2.5 microns)
  • Good – 24 AQI – Ozone
  • Good – 20 AQI – Particle Pollution (10 microns)

Agency: St. Louis Metropolitan Area (American Lung Association) – Last Update: Sat, 18 Nov 2017 01:15:08 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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St Louis Weather Conditions and Forecast, November 18, 2017


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