Grassy Lake Reservoir Weather Forecast

    • 47
    • 82

    Areas Smoke

    • 48
    • 84

    Mostly Sunny

    • 49
    • 84

    Mostly Sunny

    • 49
    • 85

    Mostly Sunny

    • 48
    • 82

    Mostly Sunny

    • 48
    • 81

    Partly Sunny

    • 46
    • 79

    Partly Sunny

Today 6 Aug Teton and Gros Ventre Mountains

Sunny. Areas of smoke. Highs in the mid 70s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 6 Aug Teton and Gros Ventre Mountains

Clear. Areas of smoke in the Evening, then patchy smoke after midnight. Lows around 50. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grassy Lake Reservoir Temperature Statistics

August Temperature

Driggs, Driggs-Reed Memorial Airport (29.8 miles)

  • Lowest 4 August, 2026

    37.9 °F

  • Average August

    67 °F

  • Highest 1 August, 2026

    93 °F

Climate (2021–2026)

Driggs, Driggs-Reed Memorial Airport (29.8 miles)

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  • Average Low 2021–2026

    29.5 °F

  • Average 2021–2026

    41.8 °F

  • Average High 2021–2026

    53.8 °F
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