Lake Dardanelle Weather Forecast

    • 76
    • 92

    Increasing Clouds

    • 73
    • 86

    Rain Showers

    • 73
    • 84

    Rain Showers

    • 71
    • 86

    Chance Thunderstorms

    • 72
    • 85

    Chance Thunderstorms

    • 75
    • 86

    Chance Thunderstorms

Today 21 Jun Southern Johnson County

Partly cloudy. Highs in the lower 90s. East Winds around 5 Mph, becoming southeast with Gusts up to 20 Mph this Morning, then becoming southwest 10 to 15 Mph with Gusts up to 25 Mph this afternoon. Heat index Values up to 106.

Tonight 21 Jun Southern Johnson County

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Thunderstorms. A chance of Showers in the Evening, then Showers after midnight. Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 90 percent. Average rainfall 1/2 to 1 inch. Heat index Values up to 105 early in the evening.

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Lake Dardanelle Temperature Statistics

June Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 16 June, 2026

    64.7 °F

  • Average June

    80.1 °F

  • Highest 1 June, 2026

    94.6 °F

Climate (2021–2026)

Russelville Municipal Airport (15.5 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    63.7 °F

  • Average High 2021–2026

    75.4 °F
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