Hallettsville Weather Forecast

    • 76
    • 99

    Hot

    • 76
    • 97

    Slight Chance Thunderstorms

    • 73
    • 100

    Hot

    • 73
    • 100

    Hot

    • 75
    • 100

    Hot

    • 74
    • 100

    Hot

Today 13 Aug Lavaca

Mostly sunny. Highs in the upper 90s. South Winds 15 to 20 Mph. Highest heat index Readings up to 108.

Tonight 13 Aug Lavaca

Partly cloudy. Humid with Lows in the mid 70s. Southeast Winds 15 to 20 Mph, Diminishing to 5 to 10 Mph after midnight.

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  • Temperature Real-Time

Hallettsville Temperature Statistics

August Temperature

Robert R Wells Jr Airport (28.6 miles)

  • Lowest 3 August, 2026

    71.8 °F

  • Average August

    83.9 °F

  • Highest 1 August, 2026

    99.5 °F

Climate (2021–2026)

Robert R Wells Jr Airport (28.6 miles)

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  • Average Low 2021–2026

    60.7 °F

  • Average 2021–2026

    70.5 °F

  • Average High 2021–2026

    81.2 °F
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