Spirit of St. Louis Airport Weather Forecast

    • 62
    • 90

    Increasing Clouds

    • 61
    • 89

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 69
    • 96

    Rain Showers Likely

    • 62
    • 83

    Slight Chance Thunderstorms

    • 63
    • 85

    Chance Rain Showers

Today 6 Sep St. Louis

Mostly sunny. Not as warm with Highs around 90. Northeast Winds 5 to 10 Mph.

Tonight 6 Sep St. Louis

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Spirit of St. Louis Airport Temperature Statistics

September Temperature

St. Louis, Spirit Of St. Louis Airport (0 miles)

  • Lowest 1 September, 2026

    71.7 °F

  • Average September

    86.4 °F

  • Highest 1 September, 2026

    99.6 °F

Climate (2021–2026)

St. Louis, Spirit Of St. Louis Airport (0 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    68.9 °F
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