Boone County Airport Weather Forecast

    • 70
    • 92

    Rain Showers Likely

    • 70
    • 87

    Rain Showers Likely

    • 67
    • 87

    Chance Rain Showers

    • 64
    • 83

    Slight Chance Thunderstorms

    • 68
    • 87

    Chance Rain Showers

    • 63
    • 84

    Chance Rain Showers

    • 59
    • 78

    Chance Rain Showers

Today 15 Sep Boone

Partly cloudy Early, then mostly sunny with a slight chance of Showers and Thunderstorms late. Much warmer with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph late. Chance of rain 20 percent.

Tonight 15 Sep Boone

Mostly Sunny, then becoming partly cloudy through the late Overnight, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms late this Afternoon, then Showers likely with a chance of Thunderstorms. Humid with Lows in the upper 60s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph late this Afternoon, becoming light and variable. Chance of rain 70 percent.

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Boone County Airport Temperature Statistics

September Temperature

INDIANAPOLIS (9.9 miles)

  • Lowest 7 September, 2026

    56.8 °F

  • Average September

    75.1 °F

  • Highest 4 September, 2026

    93.9 °F

Climate (2021–2026)

INDIANAPOLIS (9.9 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    62.4 °F
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