Brown Lake Weather Forecast

Today 18 Mar La Salle

Sunny, warmer with Highs in the lower 80s. Southeast Winds 5 to 10 Mph, increasing to 10 to 15 Mph this afternoon.

Tonight 18 Mar La Salle

Mostly clear. Lows in the lower 50s. Southeast Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight.

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Brown Lake Temperature Statistics

March Temperature

Cotulla, Cotulla-La Salle County Airport (24.9 miles)

  • Lowest 13 March, 2026

    46 °F

  • Average March

    74 °F

  • Highest 15 March, 2026

    98.1 °F

Climate (2021–Present)

Cotulla, Cotulla-La Salle County Airport (24.9 miles)

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  • Average Low 2021–2026

    64.6 °F

  • Average 2021–2026

    76 °F

  • Average High 2021–2026

    88.4 °F
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