Jameson Lake Weather Forecast

    • 56
    • 84

    Increasing Clouds

    • 57
    • 88

    Partly Sunny

    • 55
    • 84

    Sunny

    • 56
    • 84

    Sunny

    • 58
    • 86

    Mostly Sunny

    • 59
    • 90

    Mostly Sunny

Today 18 Jun Waterville Plateau

Sunny. Highs in the 80s. North wind 5 to 15 Mph in the Morning, becoming light and variable. Gusts up to 25 Mph.

Tonight 18 Jun Waterville Plateau

Mostly clear. Lows in the mid 50s to lower 60s.

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Jameson Lake Temperature Statistics

June Temperature

Ephrata, Ephrata Municipal Airport (26.1 miles)

  • Lowest 6 June, 2026

    41.6 °F

  • Average June

    65.2 °F

  • Highest 15 June, 2026

    95 °F

Climate (2021–2026)

Ephrata, Ephrata Municipal Airport (26.1 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    64 °F
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