Arrowhead Lake Weather Forecast

    • 63
    • 74

    Chance Thunderstorms

    • 57
    • 76

    Chance Rain Showers

    • 50
    • 76

    Mostly Sunny

    • 53
    • 77

    Partly Sunny

    • 53
    • 77

    Partly Sunny

    • 56
    • 80

    Mostly Sunny

Today 23 Sep White

Areas of fog this morning. Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms this Morning, then a chance of Thunderstorms this afternoon. Highs in the upper 70s. Light and variable Winds, becoming northwest around 5 Mph this afternoon. Chance of rain 50 percent.

Tonight 23 Sep White

A slight chance of Thunderstorms in the evening. Mostly cloudy with a slight chance of Showers. Patchy fog in the evening. Areas of fog after midnight. Lows in the lower 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Arrowhead Lake Temperature Statistics

September Temperature

Crossville, Crossville Memorial-Whitson Field Airport (13 miles)

  • Lowest 14 September, 2026

    64.7 °F

  • Average September

    78.3 °F

  • Highest 3 September, 2026

    95.6 °F

Climate (2021–2026)

Crossville, Crossville Memorial-Whitson Field Airport (13 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    67.3 °F
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