McNab Lake Weather Forecast

    • 67
    • 75

    Areas Fog

    • 64
    • 76

    Areas Fog

    • 65
    • 74

    Mostly Cloudy

    • 61
    • 74

    Partly Sunny

    • 61
    • 74

    Patchy Fog

    • 62
    • 74

    Mostly Sunny

    • 61
    • 75

    Partly Sunny

Today 20 Dec Coastal Matagorda

Partly sunny. Not as cool with Highs in the mid 70s. South Winds 10 to 15 Mph.

Tonight 20 Dec Coastal Matagorda

Mostly cloudy. Patchy fog. Not as cool with Lows in the upper 60s. South Winds 10 to 15 Mph.

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McNab Lake Temperature Statistics

December Temperature

Bay City, Bay City Municipal Airport (18 miles)

  • Lowest 15 December, 2025

    31.6 °F

  • Average December

    55.7 °F

  • Highest 13 December, 2025

    79.7 °F

Climate (2020–Present)

Bay City, Bay City Municipal Airport (18 miles)

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  • Average Low 2020–2025

    61.6 °F

  • Average 2020–2025

    70.1 °F

  • Average High 2020–2025

    79.9 °F
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