Clark Lake Weather Forecast

    • 35
    • 46

    Partly Sunny

    • 36
    • 50

    Partly Sunny

    • 36
    • 53

    Mostly Sunny

    • 35
    • 54

    Mostly Sunny

    • 31
    • 50

    Mostly Sunny

    • 31
    • 46

    Mostly Sunny

Today 11 Jan John Day Basin

Mostly sunny. Highs in the upper 40s to lower 50s. Southeast wind 5 to 10 Mph.

Tonight 11 Jan John Day Basin

Partly cloudy. Lows in the lower to mid 30s. Southeast wind 5 to 10 Mph.

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Clark Lake Temperature Statistics

January Temperature

Grant County Regional Airport (59.7 miles)

  • Lowest 8 January, 2026

    25.7 °F

  • Average January

    39.3 °F

  • Highest 2 January, 2026

    52.7 °F

Climate (2021–Present)

Grant County Regional Airport (59.7 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.3 °F
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