Big Lake Weather Forecast

    • 72
    • 96

    Chance Thunderstorms

    • 68
    • 92

    Chance Thunderstorms

    • 68
    • 93

    Mostly Sunny

    • 69
    • 95

    Mostly Sunny

    • 69
    • 96

    Mostly Sunny

    • 67
    • 93

    Partly Sunny

Today 20 Aug Union

Mostly sunny with a chance of Showers. A chance of Thunderstorms this afternoon. Hot with Highs in the upper 90s. North Winds around 5 Mph. Chance of rain 50 percent. Heat index Values up to 105.

Tonight 20 Aug Union

Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Lows in the lower 70s. North Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Lake Temperature Statistics

August Temperature

Bastrop, Morehouse Memorial Airport (17.4 miles)

  • Lowest 4 August, 2025

    64.4 °F

  • Average August

    81 °F

  • Highest 18 August, 2025

    101.3 °F

Climate (2020–Present)

Bastrop, Morehouse Memorial Airport (17.4 miles)

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  • Average Low 2020–2025

    54.8 °F

  • Average 2020–2025

    64.4 °F

  • Average High 2020–2025

    75.4 °F
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