Lake Dardanelle Weather Forecast

    • 71
    • 91

    Sunny

    • 71
    • 94

    Mostly Sunny

    • 75
    • 97

    Hot

    • 76
    • 98

    Hot

    • 77
    • 96

    Mostly Sunny

    • 77
    • 97

    Hot

    • 78
    • 98

    Hot

Today 28 Aug Southern Johnson County

Sunny. Highs in the lower 90s. South Winds around 5 Mph, becoming east.

Tonight 28 Aug Southern Johnson County

Mostly clear. Lows in the upper 60s. Northeast Winds around 5 Mph.

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Lake Dardanelle Temperature Statistics

August Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 3 August, 2026

    66.7 °F

  • Average August

    85.1 °F

  • Highest 19 August, 2026

    105.7 °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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