Lake Sweetwater Weather Forecast

    • 77
    • 100

    Hot

    • 72
    • 99

    Chance Thunderstorms

    • 70
    • 95

    Chance Thunderstorms

    • 69
    • 90

    Chance Thunderstorms

    • 70
    • 91

    Mostly Cloudy

    • 72
    • 93

    Mostly Cloudy

    • 72
    • 94

    Partly Sunny

Today 19 Sep Nolan

Mostly sunny with a 20 percent chance of Showers. Highs in the lower 90s.

Tonight 19 Sep Nolan

Mostly cloudy. Lows in the mid 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Sweetwater Temperature Statistics

September Temperature

Sweetwater, Avenger Field Airport (9.3 miles)

  • Lowest 5 September, 2026

    72.5 °F

  • Average September

    87.3 °F

  • Highest 3 September, 2026

    107.1 °F

Climate (2021–2026)

Sweetwater, Avenger Field Airport (9.3 miles)

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  • Average Low 2021–2026

    57.9 °F

  • Average 2021–2026

    69.7 °F

  • Average High 2021–2026

    83.1 °F
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