Diversion Lake Weather Forecast

    • 50
    • 60

    Slight Chance Rain Showers

    • 49
    • 70

    Mostly Cloudy

    • 55
    • 74

    Mostly Cloudy

    • 38
    • 70

    Rain Showers Likely

    • 24
    • 41

    Chance Rain Showers

    • 24
    • 42

    Partly Sunny

Today 20 Jan Medina

Cloudy. Highs around 60. Northeast Winds 5 to 10 Mph, becoming east this afternoon.

Tonight 20 Jan Medina

Cloudy with a 20 percent chance of Showers. Patchy fog after midnight. Lows around 50. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diversion Lake Temperature Statistics

January Temperature

Castroville Municipal Airport (13 miles)

  • Lowest 18 January, 2026

    24.8 °F

  • Average January

    57.4 °F

  • Highest 2 January, 2026

    87.8 °F

Climate (2021–Present)

Castroville Municipal Airport (13 miles)

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  • Average Low 2021–2026

    61.5 °F

  • Average 2021–2026

    72.2 °F

  • Average High 2021–2026

    84.1 °F
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