Diversion Lake Weather Forecast

    • 74
    • 88

    Chance Thunderstorms

    • 73
    • 89

    Chance Thunderstorms

    • 73
    • 91

    Partly Sunny

    • 71
    • 91

    Partly Sunny

    • 72
    • 92

    Mostly Sunny

    • 73
    • 95

    Mostly Sunny

    • 73
    • 96

    Mostly Sunny

Today 5 Jul Medina

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the mid 80s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 5 Jul Medina

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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Diversion Lake Temperature Statistics

July Temperature

Castroville Municipal Airport (13 miles)

  • Lowest 1 July, 2025

    73.4 °F

  • Average July

    80.6 °F

  • Highest 3 July, 2025

    91.4 °F

Climate (2020–Present)

Castroville Municipal Airport (13 miles)

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  • Average Low 2020–2025

    61.3 °F

  • Average 2020–2025

    72.1 °F

  • Average High 2020–2025

    84 °F
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