Lake Dardanelle Weather Forecast

    • 75
    • 89

    Decreasing Clouds

    • 74
    • 90

    Becoming Sunny

    • 74
    • 90

    Mostly Sunny

    • 74
    • 88

    Thunderstorms Likely

    • 77
    • 90

    Slight Chance Thunderstorms

    • 78
    • 93

    Mostly Sunny

    • 78
    • 94

    Mostly Sunny

Today 12 Jul Southern Johnson County

Partly sunny. Highs in the lower 90s. Southwest Winds around 5 Mph, becoming northeast.

Tonight 12 Jul Southern Johnson County

Partly cloudy this Evening, then clearing. Lows in the lower 70s. Northeast Winds around 5 Mph.

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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

    83.7 °F

  • Highest 10 July, 2026

    97 °F

Climate (2021–2026)

Russelville Municipal Airport (15.5 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    75.4 °F
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