Pierce Weather Forecast

    • 43
    • 74

    Rain

    • 35
    • 57

    Rain

    • 36
    • 70

    Mostly Sunny

    • 41
    • 76

    Mostly Sunny

    • 43
    • 78

    Partly Sunny

    • 40
    • 74

    Chance Rain

Today 6 Sep Northern Clearwater Mountains

Partly cloudy. Chance of rain Showers and a slight chance of Thunderstorms late in the afternoon. Chance of precipitation 30 percent. Highs in the 70s.

Tonight 6 Sep Northern Clearwater Mountains

Chance of Showers and Thunderstorms in the Evening, then rain likely after midnight. Chance of precipitation 90 percent. Lows in the upper 30s to mid 40s.

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Pierce Temperature Statistics

September Temperature

Grangeville - Idaho County Airport (41 miles)

  • Lowest 3 September, 2026

    44.6 °F

  • Average September

    58 °F

  • Highest 1 September, 2026

    82.4 °F

Climate (2021–2026)

Grangeville - Idaho County Airport (41 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    57.9 °F
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