Rock Hill Tank Weather Forecast

    • 46
    • 83

    Becoming Sunny

    • 53
    • 74

    Mostly Sunny

    • 53
    • 83

    Mostly Sunny

    • 60
    • 84

    Mostly Sunny

    • 64
    • 85

    Partly Sunny

    • 63
    • 85

    Partly Sunny

Today 18 Dec La Salle

Partly cloudy in the Morning, then clearing. Areas of fog in the morning. Warmer with Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 18 Dec La Salle

Clear, cooler with Lows in the upper 40s. Northeast Winds 5 to 10 Mph.

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Rock Hill Tank Temperature Statistics

December Temperature

Cotulla, Cotulla-La Salle County Airport (18 miles)

  • Lowest 2 December, 2025

    37 °F

  • Average December

    57.4 °F

  • Highest 7 December, 2025

    84 °F

Climate (2020–Present)

Cotulla, Cotulla-La Salle County Airport (18 miles)

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  • Average Low 2020–2025

    64.5 °F

  • Average 2020–2025

    75.8 °F

  • Average High 2020–2025

    88.1 °F
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