Rockwall Lake Weather Forecast

    • 78
    • 99

    Hot

    • 77
    • 100

    Hot

    • 75
    • 99

    Hot

    • 75
    • 99

    Hot

    • 74
    • 99

    Chance Rain Showers

    • 72
    • 94

    Slight Chance Thunderstorms

Today 16 Sep Rockwall

Sunny, hot with Highs in the upper 90s. South Winds 5 to 10 Mph. Heat index Values up to 107.

Tonight 16 Sep Rockwall

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 70s. Southeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rockwall Lake Temperature Statistics

September Temperature

Rockwall Municipal Airport (3.1 miles)

  • Lowest 3 September, 2026

    74.3 °F

  • Average September

    86.3 °F

  • Highest 12 September, 2026

    100.6 °F

Climate (2021–2026)

Rockwall Municipal Airport (3.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    58.1 °F

  • Average 2021–2026

    67.5 °F

  • Average High 2021–2026

    77.8 °F
Get WillyWeather+ to remove ads