Spring Valley Reservoir Weather Forecast

    • 52
    • 86

    Chance Rain Showers

    • 54
    • 86

    Mostly Cloudy

    • 54
    • 87

    Partly Sunny

    • 51
    • 84

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 53
    • 87

    Mostly Sunny

    • 54
    • 89

    Partly Sunny

Today 15 Aug Idaho Palouse

Mostly cloudy with a chance of Showers and Thunderstorms. Haze and patchy smoke. Highs in the mid 80s to lower 90s. Light wind. Chance of precipitation 40 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 15 Aug Idaho Palouse

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the upper 40s to upper 50s. East wind 5 to 10 Mph in the Evening, becoming light and variable. Chance of precipitation 30 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Spring Valley Reservoir Temperature Statistics

August Temperature

Pullman / Moscow Regional Airport (16.8 miles)

  • Lowest 3 August, 2026

    41.6 °F

  • Average August

    66.9 °F

  • Highest 7 August, 2026

    94.6 °F

Climate (2021–2026)

Pullman / Moscow Regional Airport (16.8 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    49.3 °F

  • Average High 2021–2026

    59.5 °F
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