Twentymile Lake Weather Forecast

    • 31
    • 39

    Mostly Sunny

    • 24
    • 41

    Mostly Sunny

    • 28
    • 40

    Partly Sunny

    • 33
    • 40

    Chance Rain

    • 28
    • 41

    Rain/Snow

    • 22
    • 31

    Snow Likely

Today 3 Dec Southern Clearwater Mountains

Partly cloudy. Patchy freezing fog in the morning. Highs in the 30s to upper 40s.

Tonight 3 Dec Southern Clearwater Mountains

Partly cloudy. Patchy fog in the evening. Lows in the 20s to lower 30s.

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  • Temperature Real-Time

Twentymile Lake Temperature Statistics

December Temperature

Grangeville - Idaho County Airport (24.9 miles)

  • Lowest 1 December, 2024

    28.4 °F

  • Average December

    34.1 °F

  • Highest 1 December, 2024

    42.8 °F

Climate (2019–Present)

Grangeville - Idaho County Airport (24.9 miles)

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  • Average Low 2019–2024

    36.4 °F

  • Average 2019–2024

    46.8 °F

  • Average High 2019–2024

    57.3 °F
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