Johnson Lake Weather Forecast

    • 49
    • 80

    Increasing Clouds

    • 47
    • 75

    Rain

    • 41
    • 55

    Rain

    • 38
    • 59

    Slight Chance Rain

    • 40
    • 61

    Partly Sunny

    • 40
    • 61

    Partly Sunny

Today 20 Apr Washington Palouse

Partly cloudy. Highs in the mid to upper 70s. Southeast wind 5 to 10 Mph.

Tonight 20 Apr Washington Palouse

Partly cloudy. Lows in the mid 40s to lower 50s. Light wind.

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  • Temperature Real-Time

Johnson Lake Temperature Statistics

April Temperature

Pullman / Moscow Regional Airport (38.5 miles)

  • Lowest 8 April, 2026

    27.6 °F

  • Average April

    47 °F

  • Highest 10 April, 2026

    70.6 °F

Climate (2021–Present)

Pullman / Moscow Regional Airport (38.5 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    59.6 °F
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