Grinnell Lake Weather Forecast

    • 52
    • 78

    Slight Chance Thunderstorms

    • 42
    • 65

    Windy

    • 39
    • 67

    Breezy

    • 43
    • 67

    Slight Chance Thunderstorms

    • 32
    • 58

    Rain/Snow Likely

    • 29
    • 42

    Chance Rain/Snow

Today 13 May Shirley Basin

Sunny. Highs in the lower 80s. South Winds 5 to 10 Mph, increasing to southwest 15 to 20 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 13 May Shirley Basin

Mostly clear. Lows in the lower 40s. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Grinnell Lake Temperature Statistics

May Temperature

Elk Mountain AWOS (34.8 miles)

  • Lowest

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  • Average May

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Climate (2021–Present)

Elk Mountain AWOS (34.8 miles)

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  • Average Low 2021–2025

    36 °F

  • Average 2021–2025

    46.8 °F

  • Average High 2021–2025

    57.6 °F
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