Cottonwood Weather Forecast

    • 46
    • 61

    Becoming Sunny

    • 53
    • 72

    Sunny

    • 54
    • 79

    Sunny

    • 57
    • 79

    Partly Sunny

    • 57
    • 80

    Partly Sunny

    • 57
    • 81

    Partly Sunny

Today 15 Sep Orofino/Grangeville Region

Mostly cloudy. A 20 percent chance of rain Showers in the morning. Highs in the 60s to lower 70s.

Tonight 15 Sep Orofino/Grangeville Region

Mostly clear. Lows in the 40s to lower 50s.

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Cottonwood Temperature Statistics

September Temperature

Grangeville - Idaho County Airport (12.4 miles)

  • Lowest 11 September, 2025

    46.4 °F

  • Average September

    67.4 °F

  • Highest 2 September, 2025

    98.6 °F

Climate (2020–Present)

Grangeville - Idaho County Airport (12.4 miles)

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  • Average Low 2020–2025

    36.6 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    57.6 °F
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