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St Louis Weather Conditions & Forecast, January 4, 2018

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

Current Conditions

*WEATHER WARNINGS*

  • Hazardous Weather Outlook
  • Wind Chill Advisory

Sky: FAIR
Temperature: 5°F – -15°C
Humidity: 72%
Wind Speed: NW 8 mph
Barometer: 30.34 in (1029.5 MB)
Dew-point: -2°F – -19°C
Visibility: 10 Miles
Wind Chill: -8°F – -22°C
Heat Index: N/A°F – N/A°C

Extended Weather Forecast for the St Louis, Missouri area beginning January 4, 2018

Overnight: Clear – low around 3 with northwest wind around 8 mph.
Thursday: Increasing clouds/cold – high near 16 with northwest wind around 7 mph.
Thursday Night: 40 percent chance of snow, early am, cloudy – low around 7 with north wind around 5 mph becoming calm in late pm.
Friday: Chance of snow early am, followed by a chance of flurries after late am, mostly cloudy/cold – a high near 19 with calm wind around 5 mph in the pm with chance of precipitation – 30%.
Friday Night: Partly cloudy – low around 7 with northeast wind 3 to 5 mph.
Saturday: Sunny – high near 23.
Saturday Night: Mostly cloudy – low around 21.
Sunday: Chance of snow/sleet early am followed by a chance of freezing rain/sleet in the am, then rain in the pm – high near 39 with a chance of precipitation – 80%.
Sunday Night: Rain before midnight – low around 34 with a chance of precipitation – 80%.
Monday: 30 percent chance of rain in the am, mostly cloudy – high near 38.
Monday Night: Partly cloudy – low around 27.
Tuesday: Mostly sunny – high near 39.
Tuesday Night: Mostly cloudy – low around 25.
Wednesday: Mostly sunny – high near 37.

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

Delayed Air Quality Index: 01/03/18 9:00 PM CST

  • Moderate – 51 AQI – Particle Pollution (2.5 microns)
  • Good – 25 AQI – Ozone
  • Good – 10 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.

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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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St Louis Weather Conditions & Forecast, January 4, 2018

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