Six Flags - St. Louis Weather Forecast

    • 60
    • 72

    Rain Showers

    • 54
    • 71

    Rain Showers

    • 47
    • 72

    Chance Rain Showers

    • 46
    • 69

    Mostly Sunny

    • 48
    • 71

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

Today 30 Apr St. Louis

Mostly cloudy with scattered Thunderstorms. Numerous Showers late this Morning, then scattered Showers this afternoon. Highs in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 30 Apr St. Louis

Numerous Thunderstorms. Showers. Lows in the lower 60s. Southeast Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 80 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Six Flags - St. Louis Temperature Statistics

April Temperature

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

  • Lowest 8 April, 2025

    27.8 °F

  • Average April

    57.5 °F

  • Highest 13 April, 2025

    86.6 °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

    45.8 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    68 °F
Get WillyWeather+ to remove ads