Twentymile Lake Weather Forecast

    • 21
    • 35

    Snow Likely

    • 23
    • 40

    Partly Sunny

    • 27
    • 46

    Mostly Sunny

    • 34
    • 55

    Chance Rain/Snow

    • 28
    • 43

    Slight Chance Snow

    • 33
    • 52

    Partly Sunny

    • 37
    • 57

    Chance Rain

Today 17 Apr Southern Clearwater Mountains

Snow likely. Areas of rain late in the morning. Rain likely in the afternoon. Chance of precipitation 70 percent. Snow level 3000 feet. Little or no new snow accumulation. Highs 36 to 51. Northwest Winds to 15 Mph in the afternoon.

Tonight 17 Apr Southern Clearwater Mountains

Mostly cloudy with Areas of rain and snow in the Evening, then mostly clear with a slight chance of snow after midnight. Patchy fog after midnight. Areas of fog late in the night. Chance of precipitation 50 percent. Lows 19 to 32.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Twentymile Lake Temperature Statistics

April Temperature

Grangeville - Idaho County Airport (24.9 miles)

  • Lowest 1 April, 2024

    30.2 °F

  • Average April

    44.5 °F

  • Highest 2 April, 2024

    69.8 °F

Climate (2019–Present)

Grangeville - Idaho County Airport (24.9 miles)

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  • Average Low 2019–2024

    36.3 °F

  • Average 2019–2024

    46.7 °F

  • Average High 2019–2024

    57.2 °F
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