Dennison Weather Forecast

    • 69
    • 91

    Chance Thunderstorms

    • 61
    • 79

    Rain Showers Likely

    • 64
    • 81

    Partly Sunny

    • 66
    • 88

    Chance Rain Showers

    • 66
    • 87

    Slight Chance Thunderstorms

    • 69
    • 91

    Chance Rain Showers

Today 9 Sep Clark

Mostly sunny. A slight chance of Showers Early, then a chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. West Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 9 Sep Clark

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Humid with Lows in the upper 60s. Northwest Winds around 5 Mph. Chance of rain 70 percent.

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Dennison Temperature Statistics

September Temperature

Terre Haute Regional Airport (14.3 miles)

  • Lowest 7 September, 2026

    60.1 °F

  • Average September

    79.7 °F

  • Highest 1 September, 2026

    97 °F

Climate (2021–2026)

Terre Haute Regional Airport (14.3 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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