Royse City Weather Forecast

    • 77
    • 103

    Slight Chance Thunderstorms

    • 78
    • 105

    Slight Chance Thunderstorms

    • 80
    • 104

    Hot

    • 80
    • 105

    Hot

    • 79
    • 105

    Slight Chance Thunderstorms

    • 77
    • 103

    Slight Chance Thunderstorms

    • 76
    • 101

    Hot

Today 21 Aug Rockwall

Mostly sunny with a less than 20 percent chance of Showers and Thunderstorms. Hot with Highs around 104. South Winds around 5 Mph. Heat index Values up to 110.

Tonight 21 Aug Rockwall

Mostly clear with a less than 20 percent chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the upper 70s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Royse City Temperature Statistics

August Temperature

Rockwall Municipal Airport (6.2 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 (6.2 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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