Heinlen Lake Weather Forecast

    • 49
    • 72

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 45
    • 65

    Chance Rain Showers

    • 45
    • 67

    Breezy

    • 49
    • 71

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 53
    • 78

    Mostly Sunny

Today 1 May Waterville Plateau

Sunny. Highs in the 70s. Southeast wind 5 to 15 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 1 May Waterville Plateau

Mostly clear. Lows in the upper 40s to lower 50s.

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Heinlen Lake Temperature Statistics

May Temperature

Ephrata, Ephrata Municipal Airport (29.8 miles)

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  • Average May

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Climate (2020–Present)

Ephrata, Ephrata Municipal Airport (29.8 miles)

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  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    53.1 °F

  • Average High 2020–2025

    63.3 °F
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