Emerson Lake Weather Forecast

    • 78
    • 103

    Slight Chance Thunderstorms

    • 79
    • 105

    Slight Chance Thunderstorms

    • 79
    • 104

    Hot

    • 78
    • 103

    Hot

    • 78
    • 104

    Hot

    • 75
    • 102

    Hot

Today 21 Aug Collin

Mostly sunny with a 20 percent chance of Showers and Thunderstorms. Hot with Highs around 103. South Winds 5 to 10 Mph. Heat index Values up to 108.

Tonight 21 Aug Collin

Mostly clear in the Evening, then becoming mostly cloudy. Lows around 80. South Winds 5 to 10 Mph.

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Emerson Lake Temperature Statistics

August Temperature

Rockwall Municipal Airport (4.3 miles)

  • Lowest 3 August, 2026

    70.3 °F

  • Average August

    87.6 °F

  • Highest 18 August, 2026

    102.9 °F

Climate (2021–2026)

Rockwall Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    58 °F

  • Average 2021–2026

    67.4 °F

  • Average High 2021–2026

    77.7 °F
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