Lake Dardanelle Weather Forecast

    • 75
    • 95

    Slight Chance Thunderstorms

    • 74
    • 96

    Slight Chance Thunderstorms

    • 72
    • 94

    Mostly Sunny

    • 71
    • 95

    Mostly Sunny

    • 73
    • 95

    Sunny

    • 75
    • 95

    Mostly Sunny

    • 77
    • 96

    Mostly Sunny

Today 26 Aug Southern Johnson County

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Northeast Winds around 5 Mph. Chance of rain 20 percent. Average rainfall less than 1/10 inch.

Tonight 26 Aug Southern Johnson County

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the lower 70s. Northeast Winds around 5 Mph. Chance of rain 20 percent. Average rainfall less than 1/10 inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

August Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 3 August, 2026

    66.7 °F

  • Average August

    85.2 °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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