Nez Perce National Historical Park Weather Forecast

    • 58
    • 89

    Chance Rain Showers

    • 61
    • 96

    Mostly Sunny

    • 61
    • 101

    Hot

    • 60
    • 97

    Hot

    • 62
    • 96

    Partly Sunny

    • 63
    • 97

    Hot

    • 65
    • 101

    Hot

Today 22 Jul Lewiston Area

Partly cloudy. A chance of rain Showers in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the mid 70s to mid 80s. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 22 Jul Lewiston Area

Mostly clear. A chance of Showers and Thunderstorms in the evening. Lows in the mid 50s to lower 60s. Chance of precipitation 20 percent.

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Nez Perce National Historical Park Temperature Statistics

July Temperature

Lewiston, Lewiston-Nez Perce County Airport (10.6 miles)

  • Lowest 7 July, 2025

    58.6 °F

  • Average July

    80.6 °F

  • Highest 8 July, 2025

    104.6 °F

Climate (2020–Present)

Lewiston, Lewiston-Nez Perce County Airport (10.6 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    65.8 °F
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