Adco Weather Forecast

    • 41
    • 81

    Slight Chance Rain Showers

    • 43
    • 70

    Partly Sunny

    • 51
    • 79

    Partly Sunny

    • 50
    • 78

    Mostly Cloudy

    • 45
    • 71

    Slight Chance Rain Showers

    • 43
    • 67

    Slight Chance Rain Showers

    • 44
    • 69

    Partly Sunny

Today 7 May Upper Columbia Basin

Partly cloudy in the Morning, becoming mostly cloudy. Highs in the mid 70s to lower 80s. South wind 5 to 15 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 7 May Upper Columbia Basin

Partly cloudy. Lows in the upper 30s to lower 40s. West wind 5 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Adco Temperature Statistics

May Temperature

Ephrata, Ephrata Municipal Airport (9.9 miles)

  • Lowest 1 May, 2025

    42.7 °F

  • Average May

    61.6 °F

  • Highest 2 May, 2025

    82.7 °F

Climate (2020–Present)

Ephrata, Ephrata Municipal Airport (9.9 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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