Alcoa Lake Weather Forecast

    • 74
    • 98

    Slight Chance Thunderstorms

    • 73
    • 98

    Slight Chance Thunderstorms

    • 73
    • 98

    Hot

    • 74
    • 98

    Hot

    • 74
    • 99

    Hot

    • 74
    • 98

    Hot

    • 73
    • 97

    Hot

Today 8 Sep Milam

Mostly sunny with a less than 20 percent chance of Showers and Thunderstorms. Hot with Highs in the upper 90s. Southeast Winds 5 to 10 Mph.

Tonight 8 Sep Milam

Mostly clear. Lows in the mid 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alcoa Lake Temperature Statistics

September Temperature

Caldwell, Caldwell Municipal Airport (21.1 miles)

  • Lowest 5 September, 2026

    73.4 °F

  • Average September

    83.8 °F

  • Highest 2 September, 2026

    100.4 °F

Climate (2021–2026)

Caldwell, Caldwell Municipal Airport (21.1 miles)

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  • Average Low 2021–2026

    60.9 °F

  • Average 2021–2026

    71 °F

  • Average High 2021–2026

    82.1 °F
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