Donaldson Lake Weather Forecast

    • 79
    • 93

    Decreasing Clouds

    • 78
    • 94

    Mostly Sunny

    • 79
    • 94

    Mostly Sunny

    • 79
    • 93

    Mostly Sunny

    • 79
    • 93

    Mostly Sunny

    • 78
    • 93

    Mostly Sunny

Today 21 Aug Coastal Matagorda

Mostly sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 108.

Tonight 21 Aug Coastal Matagorda

Mostly clear. Humid with Lows in the upper 70s. South Winds 10 to 15 Mph.

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Donaldson Lake Temperature Statistics

August Temperature

Bay City, Bay City Municipal Airport (16.2 miles)

  • Lowest 17 August, 2026

    67.5 °F

  • Average August

    83.7 °F

  • Highest 17 August, 2026

    95.4 °F

Climate (2021–2026)

Bay City, Bay City Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    62.2 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    80.5 °F
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