Harrison Weather Forecast

    • 63
    • 79

    Rain Showers

    • 67
    • 83

    Partly Sunny

    • 66
    • 87

    Slight Chance Rain Showers

    • 65
    • 87

    Slight Chance Thunderstorms

    • 68
    • 91

    Chance Rain Showers

    • 62
    • 89

    Chance Rain Showers

Today 10 Sep Vigo

Mostly cloudy with isolated Thunderstorms. Numerous Showers Early, then scattered Showers late. Not as warm with Highs around 80. Temperature steady or slowly falling. Northwest Winds around 5 Mph. Chance of rain 60 percent.

Tonight 10 Sep Vigo

Mostly cloudy. Numerous Showers with isolated Thunderstorms this Afternoon, then isolated Showers. Patchy fog through the late overnight. Lows in the mid 60s. Northwest Winds around 5 Mph, becoming northeast. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

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Harrison Temperature Statistics

September Temperature

Terre Haute Regional Airport (7.5 miles)

  • Lowest 8 September, 2026

    59 °F

  • Average September

    78.9 °F

  • Highest 1 September, 2026

    97 °F

Climate (2021–2026)

Terre Haute Regional Airport (7.5 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    65.7 °F
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