Lake Dardanelle Weather Forecast

    • 78
    • 103

    Chance Rain Showers

    • 74
    • 97

    Hot

    • 76
    • 98

    Hot

    • 77
    • 99

    Hot

    • 76
    • 98

    Hot

    • 74
    • 95

    Slight Chance Thunderstorms

Today 6 Sep Southern Johnson County

Sunny early this Morning, then becoming mostly sunny. A chance of Showers with a slight chance of Thunderstorms this afternoon. Hot with Highs around 105. Light and variable Winds, becoming northeast around 5 Mph this afternoon. Chance of rain 30 percent. Average rainfall less than 1/10 inch. Heat index Values up to 114.

Tonight 6 Sep Southern Johnson County

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 70s. Northeast Winds around 5 Mph. Chance of rain 20 percent. Average rainfall less than 1/10 inch. Heat index Values up to 107 early in the evening.

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  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

September Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 1 September, 2026

    72.6 °F

  • Average September

    86.7 °F

  • Highest 1 September, 2026

    101.6 °F

Climate (2021–2026)

Russelville Municipal Airport (15.5 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    75.6 °F
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