Hells Gate State Park Weather Forecast

    • 34
    • 53

    Rain

    • 33
    • 53

    Slight Chance Rain

    • 34
    • 57

    Partly Sunny

    • 42
    • 67

    Mostly Cloudy

    • 48
    • 70

    Chance Rain

    • 45
    • 67

    Chance Rain

Today 15 Apr Lewiston Area

Rain. Snow in the afternoon. No snow accumulation. Highs in the mid 40s to lower 50s. Breezy. Southwest wind 5 to 15 Mph shifting to the west in the afternoon. Gusts up to 35 Mph. Chance of precipitation near 100 percent.

Tonight 15 Apr Lewiston Area

Mostly cloudy with a chance of rain or snow. Snow level 2500 feet in the evening. Lows in the upper 20s to lower 30s. Breezy. Southwest wind 10 to 20 Mph decreasing to 5 to 15 Mph overnight. Gusts up to 35 Mph. Chance of precipitation 50 percent.

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Hells Gate State Park Temperature Statistics

April Temperature

Lewiston, Lewiston-Nez Perce County Airport (1.9 miles)

  • Lowest 8 April, 2026

    36.6 °F

  • Average April

    54 °F

  • Highest 6 April, 2026

    75.7 °F

Climate (2021–Present)

Lewiston, Lewiston-Nez Perce County Airport (1.9 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    66.2 °F
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