St. Louis Downtown Airport Weather Forecast

    • 57
    • 83

    Partly Sunny

    • 62
    • 84

    Partly Sunny

    • 49
    • 82

    Rain Showers

    • 42
    • 66

    Mostly Sunny

    • 51
    • 73

    Mostly Sunny

    • 44
    • 72

    Mostly Sunny

Today 16 Oct St. Clair

Sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 16 Oct St. Clair

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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St. Louis Downtown Airport Temperature Statistics

October Temperature

St. Louis Downtown Airport (0.6 miles)

  • Lowest 10 October, 2025

    45 °F

  • Average October

    67.8 °F

  • Highest 3 October, 2025

    90 °F

Climate (2020–Present)

St. Louis Downtown Airport (0.6 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    68.6 °F
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