Lake Dardanelle Weather Forecast
- 78
- 92
Slight Chance Thunderstorms
- 77
- 93
Chance Rain Showers
- 77
- 93
Chance Thunderstorms
- 76
- 92
Chance Thunderstorms
- 76
- 92
Chance Thunderstorms
- 78
- 93
Slight Chance Thunderstorms
- 79
- 94
Slight Chance Thunderstorms
Today 3 Jul Southern Johnson County
Sunny. A slight chance of Showers and Thunderstorms. Highs in the mid 90s. Southeast Winds around 5 Mph. Chance of rain 20 percent. Average rainfall less than 1/10 inch. Heat index Values up to 107.
Tonight 3 Jul Southern Johnson County
Partly cloudy. A chance of Thunderstorms with a slight chance of Showers Early, then a slight chance of Showers and Thunderstorms this evening. Lows in the mid 70s. Southwest Winds around 5 Mph, becoming southeast this Evening, then becoming light and variable after midnight. Chance of rain 20 percent. Average rainfall less than 1/10 inch. Heat index Values up to 106 early this evening.
Lake Dardanelle Temperature Statistics
July Temperature
Russelville Municipal Airport (15.5 miles)
Lowest 1 July, 2026
73 °FAverage July
83.9 °FHighest 1 July, 2026
96.1 °F
Climate (2021–2026)
Russelville Municipal Airport (15.5 miles)
Average Low 2021–2026
52.4 °FAverage 2021–2026
63.7 °FAverage High 2021–2026
75.4 °F