Waterloo Lake Weather Forecast

    • 66
    • 83

    Thunderstorms

    • 68
    • 81

    Chance Thunderstorms

    • 54
    • 80

    Thunderstorms

    • 48
    • 67

    Thunderstorms Likely

    • 47
    • 68

    Partly Sunny

    • 48
    • 71

    Mostly Sunny

    • 52
    • 72

    Partly Sunny

Today 1 Apr Grayson

Mostly sunny. Highs in the mid 80s. South Winds 15 to 20 Mph.

Tonight 1 Apr Grayson

A chance of Showers and Thunderstorms this Evening, then Showers and Thunderstorms after midnight. Lows in the mid 60s. South Winds 15 to 20 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Waterloo Lake Temperature Statistics

April Temperature

Sherman/Denison, Grayson County Airport (5.6 miles)

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  • Average April

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Climate (2021–Present)

Sherman/Denison, Grayson County Airport (5.6 miles)

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  • Average Low 2021–2026

    55.7 °F

  • Average 2021–2026

    64.4 °F

  • Average High 2021–2026

    76.8 °F
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