Indianapolis International Airport Weather Forecast

    • 67
    • 88

    Slight Chance Thunderstorms

    • 72
    • 89

    Mostly Sunny

    • 73
    • 90

    Chance Thunderstorms

    • 70
    • 88

    Rain Showers Likely

    • 67
    • 84

    Rain Showers Likely

    • 64
    • 80

    Chance Rain Showers

Today 8 Aug Marion

Mostly sunny with isolated Showers and Thunderstorms. Highs in the upper 80s. West Winds 5 to 10 Mph. Gusts up to 20 Mph late this afternoon. Chance of rain 20 percent.

Tonight 8 Aug Marion

Mostly clear. Patchy fog through the late Overnight, then Areas of fog toward daybreak. Lows in the mid 60s. North Winds around 5 Mph through the late Overnight, becoming light and variable.

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Indianapolis International Airport Temperature Statistics

August Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 3 August, 2026

    64.7 °F

  • Average August

    75.2 °F

  • Highest 5 August, 2026

    86.6 °F

Climate (2021–2026)

Indianapolis International Airport (0.6 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    65.2 °F
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