Nelson Weather Forecast

    • 70
    • 94

    Chance Rain Showers

    • 70
    • 91

    Chance Thunderstorms

    • 71
    • 92

    Partly Sunny

    • 71
    • 92

    Chance Thunderstorms

    • 69
    • 90

    Chance Thunderstorms

    • 65
    • 85

    Chance Rain Showers

Today 18 Sep Rockwall

Sunny. A slight chance of Showers and perhaps an isolated thunderstorm this afternoon. Highs in the mid 90s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 18 Sep Rockwall

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 30 percent.

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Nelson Temperature Statistics

September Temperature

Rockwall Municipal Airport (1.9 miles)

  • Lowest 9 September, 2025

    60.8 °F

  • Average September

    77.7 °F

  • Highest 4 September, 2025

    98.4 °F

Climate (2020–Present)

Rockwall Municipal Airport (1.9 miles)

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  • Average Low 2020–2025

    57.2 °F

  • Average 2020–2025

    66.4 °F

  • Average High 2020–2025

    76.5 °F
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