Spirit of St. Louis Airport Weather Forecast

    • 70
    • 92

    Chance Thunderstorms

    • 65
    • 85

    Mostly Sunny

    • 70
    • 89

    Partly Sunny

    • 67
    • 87

    Slight Chance Thunderstorms

    • 64
    • 82

    Slight Chance Thunderstorms

    • 64
    • 84

    Partly Sunny

Today 16 Aug St. Louis

Partly sunny. A chance of Showers and Thunderstorms, mainly this morning. Highs in the lower 90s. West Winds 5 to 10 Mph. Gusts up to 20 Mph this morning. Chance of rain 40 percent. Heat index Values up to 111 this afternoon.

Tonight 16 Aug St. Louis

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Humid with Lows in the lower 70s. North Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 107 early in the evening.

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Spirit of St. Louis Airport Temperature Statistics

August Temperature

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

  • Lowest 3 August, 2026

    62.7 °F

  • Average August

    78.9 °F

  • Highest 11 August, 2026

    95.6 °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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