Fields Spring State Park Weather Forecast

    • 55
    • 71

    Sunny

    • 57
    • 77

    Sunny

    • 59
    • 80

    Mostly Sunny

    • 58
    • 78

    Partly Sunny

    • 55
    • 74

    Partly Sunny

    • 51
    • 67

    Partly Sunny

Today 16 Sep Northeast Blue Mountains

Sunny. Highs in the lower 70s to lower 80s.

Tonight 16 Sep Northeast Blue Mountains

Mostly clear. Lows in the mid 50s to lower 60s.

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Fields Spring State Park Temperature Statistics

September Temperature

Lewiston, Lewiston-Nez Perce County Airport (21.7 miles)

  • Lowest 13 September, 2025

    57 °F

  • Average September

    74.9 °F

  • Highest 2 September, 2025

    102 °F

Climate (2020–Present)

Lewiston, Lewiston-Nez Perce County Airport (21.7 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    65.9 °F
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