Grassy Lake Reservoir Weather Forecast

    • 18
    • 47

    Mostly Sunny

    • 20
    • 45

    Partly Sunny

    • 19
    • 41

    Mostly Cloudy

    • 24
    • 42

    Snow Showers Likely

    • 15
    • 35

    Snow Showers

    • 11
    • 31

    Snow Showers Likely

    • 9
    • 30

    Snow Showers Likely

Today 5 Feb Teton and Gros Ventre Mountains

Sunny. Highs in the lower 40s.

Tonight 5 Feb Teton and Gros Ventre Mountains

Clear. Lows in the lower 20s. East Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grassy Lake Reservoir Temperature Statistics

February Temperature

Driggs, Driggs-Reed Memorial Airport (29.8 miles)

  • Lowest 2 February, 2026

    19 °F

  • Average February

    31.1 °F

  • Highest 1 February, 2026

    45 °F

Climate (2021–Present)

Driggs, Driggs-Reed Memorial Airport (29.8 miles)

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  • Average Low 2021–2026

    29.2 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    53.5 °F
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