Founders Park Weather Forecast

    • 76
    • 97

    Chance Thunderstorms

    • 77
    • 101

    Hot

    • 76
    • 99

    Hot

    • 77
    • 99

    Hot

    • 76
    • 99

    Hot

    • 76
    • 98

    Hot

Today 11 Sep Collin

Mostly sunny with a 20 percent chance of Showers and Thunderstorms. Highs in the mid 90s. South Winds around 5 Mph.

Tonight 11 Sep Collin

Mostly clear. Humid with Lows in the mid 70s. South Winds 5 to 10 Mph.

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Founders Park Temperature Statistics

September Temperature

Rockwall Municipal Airport (8.7 miles)

  • Lowest 3 September, 2026

    74.3 °F

  • Average September

    86.3 °F

  • Highest 8 September, 2026

    99.9 °F

Climate (2021–2026)

Rockwall Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    58.1 °F

  • Average 2021–2026

    67.5 °F

  • Average High 2021–2026

    77.7 °F
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