Sullivan Lake Weather Forecast

    • 43
    • 56

    Increasing Clouds

    • 37
    • 52

    Rain

    • 30
    • 49

    Breezy

    • 30
    • 49

    Mostly Sunny

    • 35
    • 53

    Mostly Sunny

    • 39
    • 60

    Partly Sunny

    • 40
    • 62

    Mostly Cloudy

Today 23 Mar Waterville Plateau

Partly sunny. Highs in the mid 50s to lower 60s.

Tonight 23 Mar Waterville Plateau

Cloudy. Lows in the lower to mid 40s.

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Sullivan Lake Temperature Statistics

March Temperature

Ephrata, Ephrata Municipal Airport (28.6 miles)

  • Lowest 10 March, 2026

    19.7 °F

  • Average March

    47.3 °F

  • Highest 19 March, 2026

    75.7 °F

Climate (2021–Present)

Ephrata, Ephrata Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.9 °F
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