Ashton Reservoir Weather Forecast

    • 43
    • 77

    Increasing Clouds

    • 43
    • 83

    Decreasing Clouds

    • 49
    • 85

    Mostly Sunny

    • 50
    • 89

    Partly Sunny

    • 44
    • 77

    Partly Sunny

    • 40
    • 72

    Slight Chance Thunderstorms

    • 36
    • 67

    Slight Chance Thunderstorms

Today 10 May Teton Valley

Sunny, warmer. Highs 71 to 78.

Tonight 10 May Teton Valley

Partly cloudy. Lows 41 to 48.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ashton Reservoir Temperature Statistics

May Temperature

Rexburg, Rexburg-Madison County Airport (23.6 miles)

  • Lowest 6 May, 2026

    28.7 °F

  • Average May

    53.4 °F

  • Highest 3 May, 2026

    74.6 °F

Climate (2021–Present)

Rexburg, Rexburg-Madison County Airport (23.6 miles)

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  • Average Low 2021–2026

    34.4 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    58.5 °F
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