• Partly sunny 85°
    Snow Days Current Weather
    • Wind
      Chill
      85°
    • Yesterday
      Precip
      0.02 in
    • Cloud
      Cover
      40%
  • Tonight

    Sep 1

    Lo 72°

    Heavy rain and a t-storm late

    Snow Days Weather
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    Day Details >
  • Tomorrow

    Sep 2

    Hi 88°

    A morning t-storm; some sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    Day Details >
  • Wednesday

    Sep 3

    Hi 89°

    Mostly cloudy with a t-storm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    Day Details >
Next

Thunderstorms, some strong, this evening through tomorrow morning

9/1 9/2 Now: 6:08pm
PM 6-10
  • 6pm Partly sunny w/ t-storms 84° 51%
  • 7pm Partly sunny 81° 43%
  • 8pm Thunderstorms 78° 51%
  • 9pm Mostly cloudy 78° 48%
  • 10pm Cloudy 77° 41%
AM 5-10
  • 5am Thunderstorms 73° 58%
  • 6am Thunderstorms 72° 58%
  • 7am Cloudy 73° 49%
  • 8am Cloudy 74° 34%
  • 9am Cloudy 75° 34%
  • 10am Cloudy 77° 37%
AM 11-4
  • 11am Mostly cloudy 80° 43%
  • 12pm Mostly cloudy 81° 47%
  • 1pm Mostly cloudy w/ t-storms 82° 51%
  • 2pm Partly sunny 84° 25%
  • 3pm Partly sunny 86° 20%
  • 4pm Mostly sunny 88° 20%
Hourly Forecast >
St. Louis, MO Weather Forecast

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The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.

48 Hour Precipitation Forecast

Mon. Snow Day Potential