Grass Mountain Lakes Weather Forecast

    • 47
    • 58

    Mostly Sunny

    • 36
    • 60

    Breezy

    • 33
    • 40

    Rain/Snow Likely

    • 39
    • 46

    Chance Rain Showers

    • 42
    • 55

    Rain Showers Likely

    • 42
    • 51

    Rain Showers Likely

Today 24 May Southern Clearwater Mountains

Mostly sunny. Highs 66 to 81.

Tonight 24 May Southern Clearwater Mountains

Mostly clear. Lows 38 to 53.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grass Mountain Lakes Temperature Statistics

May Temperature

McCall Airport (19.3 miles)

  • Lowest 17 May, 2026

    22.6 °F

  • Average May

    50.2 °F

  • Highest 12 May, 2026

    83.6 °F

Climate (2021–Present)

McCall Airport (19.3 miles)

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  • Average Low 2021–2026

    31.1 °F

  • Average 2021–2026

    43.1 °F

  • Average High 2021–2026

    55.1 °F
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