Indianapolis International Airport Weather Forecast

    • 43
    • 67

    Becoming Sunny

    • 47
    • 68

    Mostly Sunny

    • 60
    • 73

    Chance Thunderstorms

    • 64
    • 85

    Chance Thunderstorms

    • 68
    • 89

    Slight Chance Thunderstorms

    • 72
    • 92

    Chance Rain Showers

Today 13 May Marion

Partly cloudy. Cooler with Highs in the lower 60s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 13 May Marion

Mostly cloudy early this Morning, then becoming partly cloudy. Showers likely with a slight chance of Thunderstorms early this Morning, then a chance of Showers toward daybreak. Not as cool with Lows in the mid 50s. Southwest Winds 5 to 10 Mph. Gusts up to 25 Mph toward daybreak. Chance of rain 70 percent.

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Indianapolis International Airport Temperature Statistics

May Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 3 May, 2026

    36.6 °F

  • Average May

    55.2 °F

  • Highest 4 May, 2026

    75.7 °F

Climate (2021–Present)

Indianapolis International Airport (0.6 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    65.1 °F
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