Hallettsville Weather Forecast

    • 73
    • 96

    Chance Rain Showers

    • 75
    • 97

    Rain Showers Likely

    • 72
    • 94

    Rain Showers

    • 69
    • 88

    Rain Showers

    • 69
    • 87

    Rain Showers Likely

    • 68
    • 85

    Chance Rain Showers

Today 29 Sep Lavaca

Partly cloudy. A slight chance of Showers in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Humid with Highs in the mid 90s. Temperature falling to around 90 in the afternoon. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent. Highest heat index Readings up to 107.

Tonight 29 Sep Lavaca

Partly cloudy. A chance of Showers after midnight. Humid with Lows in the mid 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hallettsville Temperature Statistics

September Temperature

Robert R Wells Jr Airport (28.6 miles)

  • Lowest 26 September, 2026

    67.1 °F

  • Average September

    83.7 °F

  • Highest 2 September, 2026

    102 °F

Climate (2021–2026)

Robert R Wells Jr Airport (28.6 miles)

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  • Average Low 2021–2026

    60.8 °F

  • Average 2021–2026

    70.6 °F

  • Average High 2021–2026

    81.4 °F
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