Joliet Weather Forecast

    • 70
    • 83

    Mostly Cloudy

    • 69
    • 82

    Mostly Cloudy

    • 64
    • 86

    Mostly Sunny

    • 63
    • 87

    Mostly Sunny

    • 64
    • 89

    Mostly Sunny

    • 65
    • 87

    Partly Sunny

    • 65
    • 89

    Partly Sunny

Today 3 Oct Caldwell

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature around 80. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 3 Oct Caldwell

Partly cloudy this Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows around 70. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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Joliet Temperature Statistics

October Temperature

San Marcos, San Marcos Municipal Airport (13.7 miles)

  • Lowest 1 October, 2026

    73 °F

  • Average October

    76.9 °F

  • Highest 1 October, 2026

    86 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (13.7 miles)

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  • Average Low 2021–2026

    60.2 °F

  • Average 2021–2026

    71 °F

  • Average High 2021–2026

    82.6 °F
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