Chatham-Arch Weather Forecast

    • 51
    • 76

    Becoming Sunny

    • 53
    • 78

    Mostly Sunny

    • 53
    • 73

    Partly Sunny

    • 54
    • 71

    Chance Rain Showers

    • 54
    • 70

    Chance Rain Showers

    • 56
    • 70

    Rain Showers Likely

Today 28 Oct Marion

Partly cloudy through early Afternoon, then clearing. Highs in the mid 70s. South Winds around 5 Mph.

Tonight 28 Oct Marion

Clear. Lows in the lower 50s. South Winds around 5 Mph.

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  • Temperature Real-Time

Chatham-Arch Temperature Statistics

October Temperature

Indianapolis International Airport (8.1 miles)

  • Lowest 18 October, 2026

    37.7 °F

  • Average October

    62.9 °F

  • Highest 13 October, 2026

    88.6 °F

Climate (2021–2026)

Indianapolis International Airport (8.1 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    55.9 °F

  • Average High 2021–2026

    65.4 °F
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