Hump Lake Weather Forecast

    • 36
    • 51

    Partly Sunny

    • 33
    • 51

    Becoming Sunny

    • 37
    • 54

    Mostly Sunny

    • 38
    • 60

    Partly Sunny

    • 37
    • 56

    Mostly Sunny

    • 40
    • 62

    Partly Sunny

    • 38
    • 56

    Slight Chance Rain

Today 7 May Southern Clearwater Mountains

Partly cloudy. Highs 58 to 72.

Tonight 7 May Southern Clearwater Mountains

Mostly clear. Lows 34 to 47. Northwest Winds to 15 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hump Lake Temperature Statistics

May Temperature

Grangeville - Idaho County Airport (31.1 miles)

  • Lowest 1 May, 2026

    33.8 °F

  • Average May

    56.8 °F

  • Highest 2 May, 2026

    71.6 °F

Climate (2021–Present)

Grangeville - Idaho County Airport (31.1 miles)

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  • Average Low 2021–2026

    37.1 °F

  • Average 2021–2026

    47.5 °F

  • Average High 2021–2026

    58 °F
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