Indianapolis International Airport Weather Forecast

    • 70
    • 86

    Rain Showers

    • 70
    • 84

    Rain Showers

    • 73
    • 88

    Rain Showers

    • 70
    • 89

    Rain Showers Likely

    • 63
    • 82

    Slight Chance Thunderstorms

    • 65
    • 81

    Mostly Sunny

Today 13 Aug Marion

Mostly cloudy. Scattered Showers and Thunderstorms late this afternoon. Some Thunderstorms may produce heavy rainfall late this afternoon. Highs in the lower 80s. Southeast Winds around 5 Mph, becoming east late this afternoon. Chance of rain 50 percent.

Tonight 13 Aug Marion

Scattered Thunderstorms. Numerous Showers through the late Overnight, then Showers toward daybreak. Some Thunderstorms may produce heavy rainfall. Locally heavy rainfall possible toward daybreak. Humid with Lows around 70. East Winds around 5 Mph. Chance of rain 90 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Indianapolis International Airport Temperature Statistics

August Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 3 August, 2026

    64.7 °F

  • Average August

    77.6 °F

  • Highest 8 August, 2026

    90.6 °F

Climate (2021–2026)

Indianapolis International Airport (0.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    65.2 °F
Get WillyWeather+ to remove ads