Grimes Lake Weather Forecast

    • 58
    • 90

    Decreasing Clouds

    • 58
    • 87

    Increasing Clouds

    • 57
    • 87

    Mostly Sunny

    • 58
    • 86

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 60
    • 84

    Mostly Sunny

    • 60
    • 85

    Partly Sunny

Today 8 Aug Waterville Plateau

Mostly cloudy. Haze and Areas of smoke. Highs in the mid 80s to lower 90s.

Tonight 8 Aug Waterville Plateau

Mostly clear. Areas of smoke. Haze overnight. Lows in the upper 50s to lower 60s. Northwest wind 5 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grimes Lake Temperature Statistics

August Temperature

Ephrata, Ephrata Municipal Airport (29.2 miles)

  • Lowest 2 August, 2026

    52.6 °F

  • Average August

    71.5 °F

  • Highest 6 August, 2026

    93 °F

Climate (2021–2026)

Ephrata, Ephrata Municipal Airport (29.2 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    63.8 °F
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