Hallettsville Weather Forecast

    • 57
    • 74

    Mostly Cloudy

    • 64
    • 80

    Mostly Cloudy

    • 61
    • 81

    Mostly Cloudy

    • 61
    • 81

    Partly Sunny

    • 61
    • 81

    Partly Sunny

    • 61
    • 82

    Mostly Cloudy

Today 21 Dec Lavaca

Mostly cloudy this Morning, then becoming partly cloudy. Areas of dense fog this morning. Highs in the mid 70s. North Winds around 5 Mph.

Tonight 21 Dec Lavaca

Mostly cloudy. Lows in the upper 50s. North Winds around 5 Mph.

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Hallettsville Temperature Statistics

December Temperature

Robert R Wells Jr Airport (28.6 miles)

  • Lowest 15 December, 2025

    31.3 °F

  • Average December

    53.6 °F

  • Highest 12 December, 2025

    78.6 °F

Climate (2020–Present)

Robert R Wells Jr Airport (28.6 miles)

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  • Average Low 2020–2025

    60.3 °F

  • Average 2020–2025

    70 °F

  • Average High 2020–2025

    80.6 °F
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