Lake Dardanelle Weather Forecast

    • 78
    • 99

    Hot

    • 74
    • 95

    Chance Rain Showers

    • 74
    • 92

    Chance Rain Showers

    • 75
    • 96

    Slight Chance Rain Showers

    • 76
    • 95

    Mostly Sunny

    • 75
    • 95

    Mostly Sunny

Today 9 Sep Southern Johnson County

Sunny, hot with Highs around 102. South Winds around 5 Mph. Heat index Values up to 111.

Tonight 9 Sep Southern Johnson County

Mostly clear. Lows in the mid 70s. South Winds around 5 Mph, becoming northeast around 5 Mph after midnight. Heat index Values up to 107 early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

September Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 1 September, 2026

    72.6 °F

  • Average September

    87.7 °F

  • Highest 5 September, 2026

    103.6 °F

Climate (2021–2026)

Russelville Municipal Airport (15.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    75.6 °F
Get WillyWeather+ to remove ads