Harrison Airport Weather Forecast

    • 74
    • 93

    Isolated Thunderstorms

    • 72
    • 92

    Chance Rain Showers

    • 68
    • 89

    Thunderstorms

    • 71
    • 86

    Slight Chance Thunderstorms

    • 72
    • 91

    Slight Chance Thunderstorms

    • 66
    • 87

    Chance Thunderstorms

Today 11 Aug Knox

Mostly sunny. Highs in the mid 90s. Southwest Winds around 10 Mph with Gusts up to 25 Mph. Heat index Values up to 108.

Tonight 11 Aug Knox

Partly cloudy in the Evening, then mostly clear with isolated Showers and Thunderstorms after midnight. Humid with Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 106 early in the evening.

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Harrison Airport Temperature Statistics

August Temperature

Kirksville, Kirksville Regional Airport (11.8 miles)

  • Lowest 3 August, 2026

    59.6 °F

  • Average August

    74.9 °F

  • Highest 4 August, 2026

    91.7 °F

Climate (2021–2026)

Kirksville, Kirksville Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    54 °F

  • Average High 2021–2026

    65 °F
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