Big Lake Weather Forecast

    • 71
    • 98

    Rain Showers Likely

    • 70
    • 94

    Chance Thunderstorms

    • 66
    • 93

    Mostly Sunny

    • 66
    • 94

    Sunny

    • 70
    • 96

    Mostly Sunny

    • 71
    • 96

    Mostly Sunny

Today 26 Aug Union

Partly cloudy. A slight chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the upper 90s. Southwest Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 107 in the afternoon.

Tonight 26 Aug Union

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly cloudy with Showers likely with a slight chance of Thunderstorms after midnight. Lows in the mid 70s. South Winds around 5 Mph. Chance of rain 70 percent.

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Big Lake Temperature Statistics

August Temperature

Bastrop, Morehouse Memorial Airport (17.4 miles)

  • Lowest 2 August, 2026

    66.2 °F

  • Average August

    84.7 °F

  • Highest 21 August, 2026

    104.2 °F

Climate (2022–2026)

Bastrop, Morehouse Memorial Airport (17.4 miles)

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  • Average Low 2022–2026

    56 °F

  • Average 2022–2026

    65.8 °F

  • Average High 2022–2026

    77 °F
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