Castac Lake Weather Forecast

    • 55
    • 78

    Increasing Clouds

    • 50
    • 73

    Becoming Sunny

    • 50
    • 69

    Sunny

    • 51
    • 74

    Sunny

    • 52
    • 77

    Sunny

    • 51
    • 77

    Sunny

    • 53
    • 77

    Mostly Sunny

Today 26 Jun Grapevine

Sunny. Highs 75 to 85. North Winds 5 to 15 Mph.

Tonight 26 Jun Grapevine

Mostly clear until early morning then becoming mostly cloudy. Lows 54 to 60. Northwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castac Lake Temperature Statistics

June Temperature

Sandberg (8.7 miles)

  • Lowest 9 June, 2026

    50.6 °F

  • Average June

    69.9 °F

  • Highest 10 June, 2026

    89.7 °F

Climate (2021–2026)

Sandberg (8.7 miles)

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  • Average Low 2021–2026

    51.4 °F

  • Average 2021–2026

    59.4 °F

  • Average High 2021–2026

    68 °F
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