Six Flags - St. Louis Weather Forecast

    • 5
    • 30

    Slight Chance Snow

    • 9
    • 17

    Mostly Sunny

    • 26
    • 43

    Mostly Sunny

    • 36
    • 52

    Partly Sunny

    • 45
    • 58

    Chance Rain

    • 26
    • 56

    Partly Sunny

Today 13 Dec St. Louis

Cloudy with a chance of snow with a slight chance of freezing drizzle. Highs in the upper 20s. Temperature falling to around 20. North Winds 10 to 15 Mph. Chance of precipitation 50 percent. Wind chill Values as low as 5 above.

Tonight 13 Dec St. Louis

Mostly cloudy in the Evening, then clearing. Much cooler with Lows around 4 above. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 11 below after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Six Flags - St. Louis Temperature Statistics

December Temperature

St. Louis, Spirit Of St. Louis Airport (9.9 miles)

  • Lowest 5 December, 2025

    10 °F

  • Average December

    31.5 °F

  • Highest 9 December, 2025

    57 °F

Climate (2020–Present)

St. Louis, Spirit Of St. Louis Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    68.2 °F
Get WillyWeather+ to remove ads