Lake Dardanelle Weather Forecast

    • 80
    • 95

    Mostly Sunny

    • 79
    • 94

    Becoming Sunny

    • 76
    • 93

    Rain Showers Likely

    • 73
    • 89

    Rain Showers Likely

    • 74
    • 89

    Chance Thunderstorms

    • 75
    • 90

    Slight Chance Thunderstorms

    • 75
    • 90

    Slight Chance Thunderstorms

Today 9 Jul Southern Johnson County

Sunny. A slight chance of Showers and Thunderstorms. Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Average rainfall less than 1/10 inch. Heat index Values up to 105.

Tonight 9 Jul Southern Johnson County

Mostly clear. Lows in the upper 70s. South Winds 5 to 10 Mph, becoming northeast after midnight. Heat index Values up to 106 early this evening.

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  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

July Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 7 July, 2026

    68 °F

  • Average July

    83 °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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