Square Island Lake Weather Forecast

    • 57
    • 69

    Chance Rain Showers

    • 57
    • 72

    Partly Sunny

    • 62
    • 73

    Mostly Cloudy

    • 64
    • 76

    Slight Chance Thunderstorms

    • 66
    • 77

    Chance Rain Showers

    • 67
    • 78

    Chance Thunderstorms

Today 5 Apr Coastal Brazoria

Cloudy with a chance of Showers with a slight chance of Thunderstorms. Cooler. Near steady temperature in the upper 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 5 Apr Coastal Brazoria

Cloudy. A chance of Showers, mainly in the evening. Lows in the mid 50s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Square Island Lake Temperature Statistics

April Temperature

Angleton / Lake Jackson, Brazoria County Airport (11.2 miles)

  • Lowest 1 April, 2026

    73.7 °F

  • Average April

    78.2 °F

  • Highest 2 April, 2026

    84.7 °F

Climate (2021–Present)

Angleton / Lake Jackson, Brazoria County Airport (11.2 miles)

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  • Average Low 2021–2026

    62.7 °F

  • Average 2021–2026

    71.9 °F

  • Average High 2021–2026

    81.7 °F
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