Lake Dardanelle Weather Forecast

    • 73
    • 87

    Rain Showers Likely

    • 74
    • 94

    Slight Chance Thunderstorms

    • 75
    • 97

    Slight Chance Thunderstorms

    • 76
    • 96

    Mostly Sunny

    • 77
    • 97

    Hot

    • 76
    • 97

    Hot

Today 11 Sep Southern Johnson County

Mostly cloudy Early, then becoming partly sunny. A chance of Showers with isolated Thunderstorms. Highs in the upper 80s. Southeast Winds around 5 Mph. Chance of rain 50 percent. Average rainfall less than 1/10 inch.

Tonight 11 Sep Southern Johnson County

Mostly clear in the Evening, then becoming partly cloudy. A slight chance of Showers with isolated Thunderstorms. Lows in the upper 60s. East 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

September Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 8 September, 2026

    69.7 °F

  • Average September

    87.8 °F

  • Highest 8 September, 2026

    104.6 °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

    75.7 °F
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