Affton Weather Forecast

    • 68
    • 88

    Mostly Sunny

    • 70
    • 89

    Mostly Sunny

    • 72
    • 92

    Mostly Sunny

    • 74
    • 94

    Partly Sunny

    • 75
    • 95

    Chance Thunderstorms

    • 75
    • 94

    Chance Thunderstorms

Today 1 Jul St. Louis

Sunny. Highs in the upper 80s. Northwest Winds 5 to 10 Mph.

Tonight 1 Jul St. Louis

Mostly clear. Lows in the mid 60s. Northwest Winds 5 to 10 Mph.

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Affton Temperature Statistics

July Temperature

St. Louis Downtown Airport (9.9 miles)

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  • Average July

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Climate (2020–Present)

St. Louis Downtown Airport (9.9 miles)

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  • Average Low 2020–2025

    47.3 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    68.3 °F
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