Sullivan Lake Weather Forecast

    • 32
    • 46

    Mostly Cloudy

    • 33
    • 42

    Mostly Cloudy

    • 38
    • 43

    Chance Rain

    • 34
    • 45

    Rain Likely

    • 31
    • 45

    Partly Sunny

    • 31
    • 41

    Partly Sunny

Today 5 Feb Waterville Plateau

Patchy fog in the morning. Mostly cloudy. Highs in the 40s.

Tonight 5 Feb Waterville Plateau

Mostly cloudy. Areas of fog overnight. Lows in the lower to mid 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sullivan Lake Temperature Statistics

February Temperature

Ephrata, Ephrata Municipal Airport (28.6 miles)

  • Lowest 1 February, 2026

    28 °F

  • Average February

    35.6 °F

  • Highest 1 February, 2026

    44.1 °F

Climate (2021–Present)

Ephrata, Ephrata Municipal Airport (28.6 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.8 °F
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