Waterloo Lake Weather Forecast

    • 64
    • 74

    Thunderstorms Likely

    • 60
    • 75

    Thunderstorms

    • 55
    • 72

    Chance Thunderstorms

    • 62
    • 81

    Sunny

    • 68
    • 85

    Mostly Sunny

    • 71
    • 88

    Mostly Sunny

Today 23 May Grayson

Cloudy with a 20 percent chance of Showers and Thunderstorms. Highs in the mid 70s. East Winds 5 to 10 Mph, increasing to 10 to 15 Mph in the afternoon.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waterloo Lake Temperature Statistics

May Temperature

Sherman/Denison, Grayson County Airport (5.6 miles)

  • Lowest 1 May, 2022

    48.4 °F

  • Average May

    74.4 °F

  • Highest 15 May, 2022

    93.2 °F

Climate (2010–Present)

Sherman/Denison, Grayson County Airport (5.6 miles)

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  • Average Low 2010–Present

    54.1 °F

  • Average 2010–Present

    62.5 °F

  • Average High 2010–Present

    74.1 °F
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