Rainbow Lake Weather Forecast

    • 55
    • 65

    Mostly Cloudy

    • 57
    • 74

    Mostly Cloudy

    • 63
    • 80

    Slight Chance Thunderstorms

    • 66
    • 85

    Chance Thunderstorms

    • 61
    • 84

    Chance Thunderstorms

    • 61
    • 81

    Sunny

    • 67
    • 87

    Mostly Sunny

Today 6 May Rockwall

Cloudy with a 40 percent chance of Showers and Thunderstorms. Much cooler with Highs in the mid 60s. North Winds 5 to 10 Mph.

Tonight 6 May Rockwall

Mostly cloudy. Lows in the mid 50s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Lake Temperature Statistics

May Temperature

Rockwall Municipal Airport (3.7 miles)

  • Lowest 2 May, 2026

    50.9 °F

  • Average May

    65.8 °F

  • Highest 4 May, 2026

    80.4 °F

Climate (2021–Present)

Rockwall Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    57.9 °F

  • Average 2021–2026

    67.2 °F

  • Average High 2021–2026

    77.4 °F
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