Arnold City Park Weather Forecast

    • 69
    • 88

    Slight Chance Thunderstorms

    • 71
    • 90

    Mostly Sunny

    • 74
    • 95

    Partly Sunny

    • 72
    • 91

    Chance Thunderstorms

    • 71
    • 90

    Slight Chance Thunderstorms

    • 71
    • 91

    Mostly Sunny

Today 7 Jul Jefferson

Partly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. North Winds around 5 Mph. Chance of rain 20 percent.

Tonight 7 Jul Jefferson

Partly cloudy. Lows in the upper 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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Arnold City Park Temperature Statistics

July Temperature

St. Louis Downtown Airport (13 miles)

  • Lowest 4 July, 2026

    71.1 °F

  • Average July

    82.9 °F

  • Highest 2 July, 2026

    96.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (13 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    69.3 °F
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