Six Flags - St. Louis Weather Forecast

    • 32
    • 51

    Increasing Clouds

    • 34
    • 50

    Mostly Cloudy

    • 37
    • 54

    Mostly Cloudy

    • 40
    • 51

    Rain Likely

    • 35
    • 55

    Mostly Sunny

    • 43
    • 61

    Mostly Cloudy

Today 11 Feb St. Louis

Sunny. Much cooler with Highs around 50. Northwest Winds around 5 Mph.

Tonight 11 Feb St. Louis

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the lower 30s. North Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Six Flags - St. Louis Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    -7.3 °F

  • Average February

    29.7 °F

  • Highest 6 February, 2026

    51.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    57 °F

  • Average High 2021–2026

    68.3 °F
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