Johnson Lake Weather Forecast

    • 42
    • 65

    Increasing Clouds

    • 44
    • 70

    Mostly Sunny

    • 46
    • 75

    Mostly Sunny

    • 52
    • 77

    Mostly Cloudy

    • 51
    • 75

    Mostly Cloudy

    • 53
    • 79

    Mostly Sunny

Today 28 Apr Washington Palouse

Partly cloudy in the Morning, then mostly cloudy with a chance of rain Showers in the afternoon. Highs in the upper 50s to mid 60s. Southwest wind 5 to 15 Mph with Gusts up to 20 Mph. Chance of precipitation 20 percent.

Tonight 28 Apr Washington Palouse

Mostly cloudy. Lows in the upper 30s to lower 40s. Southwest wind 5 to 10 Mph in the Evening, becoming light and variable.

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Johnson Lake Temperature Statistics

April Temperature

Pullman / Moscow Regional Airport (38.5 miles)

  • Lowest 8 April, 2026

    27.6 °F

  • Average April

    47.5 °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

    39.6 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    59.6 °F
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