Lake Dardanelle Weather Forecast

    • 79
    • 96

    Sunny

    • 77
    • 94

    Rain Showers

    • 74
    • 90

    Thunderstorms Likely

    • 74
    • 88

    Chance Thunderstorms

    • 74
    • 88

    Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

    • 77
    • 92

    Mostly Sunny

Today 10 Jul Southern Johnson County

Mostly sunny. Highs in the upper 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 108.

Tonight 10 Jul Southern Johnson County

Mostly clear. Lows in the mid 70s. Southwest Winds around 5 Mph this Evening, becoming light and variable. Heat index Values up to 107 early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

July Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 7 July, 2026

    68.6 °F

  • Average July

    83.1 °F

  • Highest 1 July, 2026

    96.7 °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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