Rainbow Lake Weather Forecast

    • 50
    • 60

    Decreasing Clouds

    • 58
    • 65

    Mostly Cloudy

    • 37
    • 67

    Mostly Sunny

    • 49
    • 62

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 50
    • 72

    Partly Sunny

Today 16 Dec Rockwall

Cloudy. Highs in the upper 50s. South Winds around 10 Mph.

Tonight 16 Dec Rockwall

Mostly cloudy. Not as cool with Lows around 50. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rainbow Lake Temperature Statistics

December Temperature

Rockwall Municipal Airport (3.7 miles)

  • Lowest 14 December, 2025

    29.7 °F

  • Average December

    44.7 °F

  • Highest 12 December, 2025

    69.4 °F

Climate (2020–Present)

Rockwall Municipal Airport (3.7 miles)

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  • Average Low 2020–2025

    57.4 °F

  • Average 2020–2025

    66.7 °F

  • Average High 2020–2025

    76.7 °F
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